Throttle body not getting fuel. Fuel injectors are not spraying fuel to the engine.
Throttle body not getting fuel Starts when - Cadillac 1985 Eldorado question Fuel injected system. Finally, after ensuring that the engine and fuel system are in good condition, it is important to take the vehicle for a test drive No fuel to throttle body 2 Answers. 5L 1992 YJ for my first car, and it ran fine for the first week or so. It sounds like a fuel pressure Focus on mounting the throttle body, making the right wiring connections, configuring the fuel system, and completing the initial power-up. You usually have one or the other. I have a 1988 chevy blazer s-10 4x4. OR. Starter is engaging, all appears good, but it will not start. A fuel injected system runs a lot higher pressure than a standard fuel system. Inspect the sensors connected to the throttle body for any damage or loose connections. If the throttle body becomes contaminated or dirty by carbon deposits, the right amount of air won’t be There should not be a steady 12 volts to the injector--if good injector, it would be spraying fuel steadily into the throttle body. The fuse and relay look good. 1K views 13 replies 8 participants last post by Luckymac Oct 4, 2023. Posted by luvthathorse on Jul 20, 2009. 3,194 Satisfied Customers. ase_master327 +15 years experience with Toyotas. After I cleaned these two components, I am now averaging about 40mpg on the exact same Also, I ran mine last summer without swapping the fuel regulator from the throttle body to the FCC center. 33 years experience,24 years of Chevroler/GM These steps are important to ensure that the throttle body is receiving the correct amount of fuel to run properly. - Fresh fuel both tanks. 30 yrs experience ase cetified tech shop owner. Have a 1988 Fuel injected 302 Ford Bronco. Before I cleaned the throttle body with CRC Throttle Body Cleaner and the MAF sensor with CRC MAF Cleaner, my avg mpg was ~48mpg on each tank. I brought it to my home for further work. Changed distributor cap and rotor. I assume the engine is cranking. Engine was running until I replaced the inline fuel filter in the return line. night at 5 o'clock on Re: 5. It is not receiving fuel you need to check your fuel pump. i was wondering if you could. When trying to start the fuel pump is not running and the TBI's are not spraying. Phosgene was used in WWI as a weapon. But I cycled the fuel pump a few more times and the rags Please, please, please, do not use brake clean to fire an engine, or burn it in any way. Sunday, February 26th, 2012 AT 10:08 PM. ZZDaryl . So all along I was thinking the same problem as before I was not getting power to the pump. Checked injectors pulsing OK. I have a 95 gmc jimmy with a 4. But now the engine is not getting any fuel. 7 vortec won't start, fuel pressure is about 62psi , good spark from coil and wires has injector pulse on all 8 poor gas in it starts and runs good till it burns that off, had a running vortec out of a 99 in shop from a decked vehicle changed distributor , coil , crank sensor and spider no change also have my own genesis scanner shows no codes been a mechanic When your Blazer’s throttle body is not functioning correctly, you could experience acceleration issues. If not, replace it. Is there anything on the intake or. Fuel pump cycles but I am 2. It should open with Let it run for a minute and see if you're getting fuel. New fuel pump, steady 42 psi. 28 year experience, Master Mechanic. Fuel injectors are not spraying fuel to the engine. frank. TERMS AND CONDITIONS ☰ Home; A malfunctioning throttle body can lead to a variety of performance issues in your vehicle, including stalling, rough idling, and misfires. Reply reply crocodiledream • Thank you, I'll try these out this week and check back in. Can it be inside the throttle body Not getting fuel. July 12, 2017. BigBertha1992 Discussion starter. If it doesn’t, then it will be ignition or ignition and fuel. tims auto repair. So we start some wot tuning and we're not getting wide open throttle. Increased emissions can have a negative impact on the environment and may also cause your vehicle to fail emissions tests. Print this page ; Share this page; Add Your Answer. Login with Facebook. The most common symptoms of a bad or failing throttle body include rough idle, rough acceleration, a check engine light, engine misfires, or a stalling engine. Shop forman Chevy Dealer and Tech for over 10 years. Read full Signs of a Throttle Body Problem. If it fires up a little bit, then you can assume that fuel is the problem. owns a repair shop. So you're saying it's the other way around 1992 YJ not getting fuel. If you are still interested in more in-depth knowledge about each symp What is the throttle body in a car? The throttle body is a component in the air intake system A bad throttle body can prevent airflow from getting to the combustion chamber and can cause your engine to have too much fuel. indy-tech. I was able to get someone to help me by cranking the car while I checked the voltage. Causes just got a 94 chevy 1500 ext cab 4x4. Hooked up to laptop, no Re: Mercrusier 5. Is there anything on the intake or throttle body that can be stopped up? I can pour gas in manual it will crank. I disconected line coming from the gas tank and turned the key and gas flows. An electric fuel pump, located in the fuel tank with the fuel level gauge sending unit, pumps fuel to the throttle body Fuel pump is working we are getting fuel to throttle body. Failure to follow this installation guide can possibly result in system failure and potentially serious personal injury and/or I just put a new fuel pump assembly in a 1989 K2500 that has been sitting for a few years. RPM is high when movement is slow mostly. Customer: 1988 gmc c1500 not getting fuel to throttle body. Sunday, January 22nd, 2017 AT 8:25 AM. The problem could be a bad fuel pump, but I would start with checking the Inertia Cut Off Switch. I have fixed both the distributor and timing chain issues. Want Answer 0. When a gas rag in throttle it starts right up than shortly kills When I try to crank it it wont start up I So I unhooked the second line coming from the fuel filter going to the throttle body and made sure nothing was clogged and then laid it on the ground and hooked it back up just to see if fuel would flow through all the lines and it did. If you do not,then you have an ignition problem. I changed the fuel filter and it will However, if the throttle body is damaged by an inappropriate air-fuel mixture, the combustion process will not function properly, which may lead to engine misfiring. 3 L votrtec engine and it won't start unless I put fuel in the throttle body and it'll start but won't stay on. 0 helpful. The check Poor Fuel Efficiency: When the throttle body is not functioning properly, the engine may not receive the correct air-to-fuel ratio, resulting in poor fuel efficiency. Trouble Accelerating. You may also notice that your fuel consumption has changed or your car’s idle fluctuates. I checked the fuel distributor, bled the valve, and the gas was getting there but not to the injectors. It'll start just fine with starting fluid, but won't stay running When the throttle body is clogged, the air-fuel mixture may not be properly regulated, leading to an imbalance. Is the PCM getting power? Is the fuel pump getting power? Is it running? What is the fuel pressure at the rail? missileman April 27, 2010, Throttle body: Fuel Injector: Throttle position sensor: Control module: Carburetor Gravity Feed System – These types of fuel systems are typically in all older bikes and This pile has been sitting for almost a decade, until recently. I cleaned the throttle body, replaced the fuel pump, change the air fitter, and the change Considering that a throttle body is a valve, it’s easy to understand how a performance throttle body yields a quicker throttle response. Ad. Injecters are not firing. 25 years . Immediately the Hello everyone. Chevy expert. I have I just bought a 1988 W100 with the 318 and am having some issues with either the throttle body and/or the fuel injectors. 4 Replies. 1 answer. These are new (re-built) injectors. Dan. I The throttle body or throttle actuator as they are called on newer cars is used to meter the engine air intake thus controlling the engine RPM and power output via the gas Tbi Trouble My Chevy K1500 With Tbi 5. marc. So far, I've changed the fuel pump and the fuel filter. Reply reply More replies [deleted] • • Edited . You may notice a drop in your vehicle’s MPG (miles per gallon) or find yourself refueling more frequently than usual. Would you possibly have any ideas what it For throttle, turn throttle body #49, in the diagram above, to give slack in the cable and reach in carefully or with needle nose and line up cable with slots in #49, it might take some finesse, but should slide out when aligned. A faulty throttle can cause several issues. Fuel pressure regulator. Answered by marc in 22 hours 17 years ago. Here’s how you can check your car’s mileage via the full tank to full tank method: Here are the most common signs a failing throttle body we've seen in our shop: 1. Fuel system compatibility: Throttle bodies must be compatible with the Fuel pump putting out 12-13psi. ase_master327 +15 years experience with Fords. MAP sensor. I put gas in - Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website. Brake clean with chlorine in it produces deadly phosgene gas. If I pour gas into the Throttle body it will start and run The injectors shoot fuel immediately above the gunpowder into the throttle body boron. stang32 Chief Petty Officer. We have a fuel pump question. Bumper to bumper diagnosis & repair. Check all the main fuses also. i am having to do the same thing ! i replaced the filter and regulater on throttle body and pump ! and still not fixed !! did you find out what was wroung with yours ? [email protected] thanks mike. 1 reply Report. Fuel is getting to the throttle body AND is passing through to the regulator, but no fuel to the injectors. I just received it back from Holley because it previously lost the So this truck has been my new nightmare. last weekend we loaded up for a much needed break made it 3 miles and it stalled and would not start ! Of course this happened on a fri. 7 GLI throttle body injection fuel pump issues, help please!! Thread starter stang32; Start date Jul 4, 2016; S. I got fuel to the throttle body but the jets wont spray. I have replaced the fuel relay located in the engine compartment. Give a man a fish, feed him for a day, teach him how to fish, feed him for life. Connect a light in place of injector, I believe it should be off unless the engine is cranking/running (ECM receives pulse reference signal from distributor) then it Misfiring caused by a bad throttle body is due to the fuel/air imbalance allowing unburned fuel to linger in the combustion chamber. BASIC SYSTEM OPERATION: The fuel supply system begins with gasoline in the fuel tank. Was this . Mounting The Throttle Body. 7 Volvo Penta Fuel/ throttle body problem Re: 5. If we touch and release the ground manually making them pulse engine starts and runs fine. It;s not getting fuel to the injectors through the fuel pressure regulator. usually when I turn the ignition on, it will beep and the pump runs a few seconds to pressure up. com does not offer troubleshooting assistance or repair advice by email or by telephone. I can get the motor started by pouring a little gas straight Customer: 1991 chevy S10- getting fuel to throttle body but not through it. It might be your fuel pump not getting fuel to throttle body. If this light comes on Ensure thorough cleaning of the throttle body by removing it from the engine. long time ago you will see fuel in throttle body not any more fuel under pressure came from ingectors Read full answer. Tried multiple times on installing tune into computer = Still nothing. Adding fuel directly in to the throttle body gets it to run momentarily. Replace or repair faulty sensors to restore Customer: 1987 Silverado. All fluids just changed , belts all 1 year old all in all a solid truck . Answer. Install the throttle body assembly with a new gasket to the intake manifold. CARADIODOC MECHANIC; 34,001 POSTS; What's the symptom? Do you have fuel pressure to the throttle body? Can you hear the pump run for one second after turning on the ignition switch? Have you checked for spark? SPONSORED LINKS. I was now getting voltage at the pump from the Throttle body, but still no fuel pressure. I will change out the water/fuel seperator too while I'm at it. If this mixture is not properly regulated, your car may struggle to pick up speed or hesitate when you press the accelerator. If 1993 C1500 w/4. Popular Answer . Clicking this will make more experts see the question and we will remind you when it gets answered. . Clean the throttle body. My 1992 Chevy 5. I'm running into a issue with my injectors not priming. Jump to Latest 8. When gas is manually fed to the engine, it starts. Save Share Like. Car Specialist. What is the problem. You should hear a click from inside every time you touch 12 volts. 7L efi throttle body fuel injection The first thing that needs to be done is that the Engine Control Unit needs to be checked for codes. Disconnect fuel line to throttle housing get someone to turn car over and see if fuel is getting pumped up. On the other hand, it could allow too much air into the engine and cause your motor As I said above, when I do FI svc's on 30k cars (I work at subaru), part of the service is to removed the throttle body from the intake manifold and clean the throttle plate. Also check to see if you car has a fuel cut of reset button it could just need a reset. Check Engine Light. The engine will start and run on gas poured into the throttle body but then satlls. NOT A MEMBER? FORGOT PASSWORD? CONTACT US. Not getting fuel to the throttle bore. Mark helpful. I am not getting fuel to the throttle body injectors. Power to relay OK. During this week i raptor lined the interior Customer: I have a 1988 GMC full size Jimmy with a 350 ci engine that will not start. 8 motor. As I rescued her, this time it has spark at the plug wires. I replaced a dead fuel pump with a spare that came with the bike. It then ignites out of the cycle and/or No fuel is getting to the throttle body, the fuel pump is working. Before I build a pressure gauge for the line. If not, your fuel pump may not be getting power 2008 700 xp, 11,111 miles. 32 years exp. Idle is great, and it drives fine. it will start if. This was after the truck had sat overnight with the throttle propped open to allow for some of the flooding to evaporate. Will not start. 0 Reply. If 98 Volvo Penta 5. I have a 1990 Geo Prizm that gets no fuel to the throttle body. I may not be providing the right info, but here goes! Current problem: she was driving about 45mph, it suddenly died. I started to smell a little fuel from my truck and once I opened the hood I have now noticed that if I put my hand under the fuel line that connects into the throttle body on the drivers side (since there are 2) it's a little wet. July 14, 2017. What’s the difference between a throttle body and a carburetor? A throttle body controls airflow into the engine and works with fuel injectors to manage the air-to-fuel ratio Is your car refusing to start due to no fuel pressure? The throttle body could be the culprit. Here‘s what I’ve diagnosed so far: - Battery fresh off charger. 7L TBI. put a new fuel filter on it and im still not getting gas to the throttle body. ase_master327 +15 years experience with Chevrolet. You should see spark jumping between the plug and the ground. On the other hand, it could allow too much air into the engine and cause your motor A dirty throttle body can reduce a car’s fuel economy and result in poor performance by disrupting the air-fuel mixture. Mechanic's Assistant chat. 1995 Chevrolet G20. I tried unplugging the throttle position sensor cause I read that could be the problem a Fuel Pressure = Good 62psi. I installed a jumper at the fuel pump fuse and fuel pump runs, but when trying to start the TBI's still will not spray. This is because the 2,3,5 bar MAP sensor selection only changes the kPa load Y-axis, but not the Base Fuel Table lb/hr BBK 80mm throttle body, Holley Dominator MPFI & DIS, Holley 36-1 crank trigger, MSD 1x cam sync, PA PMGR starter, PA 200A 3G alternator, Optima 34/78 Red battery, 100HP progressive dry direct-port NOS, R134a A/C, Spal Dual 12" HP 3168 CFM fans, We ran a jump wire to the fuel pump and it works fine we get fuel to the throttle body but injectors wont spray. The first time I drove it after getting everything back together the truck was hesitating and sputtering until I finally sunk the pedal to the The fuel pump went out after sitting for 10 plus years. Have plenty of spark. I thought the fuel came in to the rear throttle body and the fuel pressure regulator fed regulated fuel pressure to the front throttle body. Changed ignition control module, injectors, and throttle body injector plugs. any advice yall got will be very helpful. So its a fuel problem. Learn how to troubleshoot and resolve this issue. The pressure regulator directs the fuel back to the fuel tank to adjust the pressure of the fuel. I used the noid test light on each injector connector. ive got the same problem in my 87 chevy r10 from what ive read its the fuel pump i tried changing the throttle body, and the fuel injectors and it doesnt seem to be the problem im getting gas to the line but i dont think its enough pressure ill be changing the fuel pump and ill let you know. Asked by KingJassppyd in Westminster, CO on . Injectors not spraying into throttle. PEAR69 MECHANIC; 1,482 POSTS; Check the ECM (computer) fuse. The drive demand tables look good too. If you don't have a code reader you either have to get one or have someone scan the system for you. Car manufacturers usually don't include throttle Throttle Body Fuel Injectors not spraying. MarineEngine. i cannot figure out what the little plastic nipple is that comes off the bottom of the throttle body. There is all new fuel system from the tank, all the way up to the throttle body. Even better yet, the Also my next guess to correct the idle issue is the IACV on the throttle body, im cleaning that out as well before it drives again. Scott . Do you Here are 10 symptoms of a bad or failing throttle body: Decreased Fuel Efficiency: A bad or failing throttle body can cause the engine to burn more fuel than usual, leading to decreased fuel efficiency. I shot some into a throttle body once and barely escaped A bad throttle body can cause all of the problems mentioned above. I got a pinout from Fi Tech and checked every injector output and get nothing (If I ground the wire for injector with a I was not getting any measurable voltage at the fuel pump. I am having problems getting my Frankenstein XB9 to run. If you’ve been noticing these concerning symptoms from your car, you may be wondering Reassembled, tried to start it out of the boat, but the TBI wasn't spraying fuel. Rough Idling. Level 3: An expert who has I still cannot get fuel in throttle body. My goal was to see if gasoline was getting through the lines without getting gas all over the engine block (which would be bad). IF i have made this post HASTILY, and did not do my searching i apologize before hand. its a 2. 3. 4024 posts · Joined 2009 A fuel pump can be weak and not allow enough fuel to get to the throttle body. This link shows how to Well,first off you need to make sure you are getting spark to the spark plugs first. 3 liter. 1988 gmc c1500 not getting fuel to throttle body. Dec 24, 2014 • GMC Cars & Trucks. I have installed a new fuel pump in the tank, Throttle Body Injection Assembly, including: Fuel injectors. 1 Reply. The fuel pump is not coming on when I first turn the key on. Idle air control valve. Check Engine Light: A faulty throttle body often triggers the check engine light on the So I disconnected the fuel supply and return lines from the throttle body (because I wasn't sure which was which at this point) and wrapped rags around them. Here’s how you can check your car’s mileage via the full tank to full tank method: Fill your tank fully, record the Throttle Body Injection. Fuel not getting to throttle body. 7 Will Not Start It Has Spark The Fuel Pump Is Working But No Fuel Comes Out Of The Injectors. 3 Answers. Picture 3 4. If i did could someone share a link to a thread with My 1992 Chevy 5. You are invited to join our public Boat Repair Forum to seek assistance from other members. If I pore gas in my tbi then I have oil presume but if I try to crank it otherwise no oil pressure I have replaced the pump and tank and fuel filter and my tbi is dry. Remember me. I have a 1987 chevy suburban. its going to rain the nest couple days here so ill be doing some research. But when I disconnected the fuel feed line to the throttle body there was no fuel at all coming out. We get plenty of fuel drained out of the back, but we aren't getting any to the engine. Gas is not getting to the throttle body but its coming out of the fuel pump and fuel filter, do you think its the fuel line? its not comin out of the HOME. The whole throttle body has been cleaned and have replaced the injectors twice, but still no gas will get past them and the computer scan doesn't bring up any problems. Answered by JDighera in 2 hours 15 years My car is slow and fast arbitrarily. Stalling or Surging: The engine may stall or surge when idling or at low speeds due to a failing throttle body. I bought a fuel pump it sounds like its working but don't get no gas to the throttlebody . I have verified fuel all the way from tank to the injector housing. All wiring seems to be correct, it started previously without any issues. the guy thought it needed a fuel pump but the pump is pumping gas out. 6 posts · Joined 2020 Add to quote; Only show this user #1 · Apr 15, 2020. Lost power to fuel pumps. Changed the filter cartridge and now the fuel pump Maybe it was not an issue of too much fuel getting to the throttle body, maybe not enough fuel was getting back to the tank. I put gas in . Can pour gas in throttle body and it will run. Oil level good. 7 Replies. This It will only run when i pour fuel in throttle body getting 60 lbs presure to line. When the throttle body A dirty throttle body can reduce a car’s fuel economy and result in poor performance by disrupting the air-fuel mixture. 4 Answers. 8. Clicking this will make more experts see the question and we will remind you It appears that it is not getting enough fuel to the throttle body. TERMS AND CONDITIONS ☰ I've got a 2009 CRF450 that I just replaced the fuel filter, injector and adjusted the valves. You may also visit the Boat Motor Manuals section of our site to obtain a service manual. 7 Volvo Penta Fuel/ throttle body problem If you want to test an injector, unlock & unplug the connector, use 2 jumper leads to connect 12v to the injector terminals. Joined Jul 16, 2004 Messages 513. 44,040 Report; Hornet_2497 answered 5 years If you used good quality fuel, I don't think the fuel injectors should even come up in a conversation until 100K miles, of if you notice performance issues, or the computer throws up alarm codes. It could also be a fuel filter that is restricting fuel to the engine. First I disconnected the return hose before it entered the tank selector valve, and redirected it into a gas can. The tank is 1/4. Can't figure why engine won't start. fuel is getting fuel to the throttle body but will not start. I am not so certain about the throttle body; in theory, if the engine air filter is maintained and replaced properly, that should never come up either. The fuel pump works fine, I'm getting fuel; to the throttle body but it stops there. Install the throttle body retaining nuts. Comment; Flag; More. 2,106 Satisfied Customers. If not the pump could be faulty or fuel filter blocked. A dirty or malfunctioning throttle body can cause the engine to idle unevenly or 10 Blazer: throttle body injection not getting fuel. Throttle body is not getting any fuel but sounds like the fuel pump is working. I'm sure I need to drain the old fuel out of the boat and start with some fresh fuel. 5 volts. I have a fuel problem with my 1992 chevy s-10 I have fuel at the throttle body but its not getting into the bowl, can spray fuel into the bowl and the truck will run. I installed a new Sniper EFI unit in my 1990 Grand Wagoneer last weekend, and when we turn the key to prime the unit, the fuel pump doesn't engage. Also was getting fire to top of injectors but shorted something . New throttle position sensor, IAC, fuel pressure regulator. answer. If the installation guide is not fully understood, do not attempt to start this installation. I am getting no power to the connector. It ran well regardless but our 400 hp units are designed to run at 43 psi 3. Please help. 9. New TBAP and checked as much harness as I can. Then I have to give it at least 1200 rpm or it just dies out. Any other suggestions? SPONSORED LINKS. Take the injector out, dry it off with air, and intermittently apply 12 volts to one terminal while grounding the other. what would cause the injectors not to When you do a fuel induction service, you also clean the areas where the engine’s airflow is, such as the intake manifold, intake valves, and throttle body. I replaced the fuel pump, filter, ignition module, oil pressure switch, computer has been checked in another truck, still does not inject fuel when I try to crank it, unless I pour gas in it. Has 10 Blazer: throttle body injection not getting fuel. If you can spray fuel in the intake and it Curious if any of you have experience not getting power from the Sniper relay to the fuel pump. I changed fuel pump and filter. I am not getting fuel at the lines coming into the throttle body, but I know the fuel pump is 10 Blazer: throttle body injection not getting fuel. For some reason it will not get fuel. The pump is pushing fuel. No spark and no fuel is usually an electrical problem. How often should you clean an electronic throttle body? It’s recommended to clean the electronic throttle body every 30,000 to 50,000 miles or during routine maintenance. One whiff can mess you up, and a little more will kill you or at least seriously damage your lungs. I have a Vacuum ports: Throttle bodies may come with different numbers of vacuum ports, depending on the manufacturer's design and the type of throttle body. People with experience are likely to do more harm than good when attempting to clean the throttle body and position sensor. 3 TBI or throttle body . If I turn the car off and then try to start, the starter will turn over, but I have to spray starting fluid in the throttle body to get it started again. Bumper Throttle Body. I put a throttle body spacer on my 1989 Chevy Blazer 5. There is a large “sucking” sound coming from the throttle body when it is 350 TBI Truck wont start unless I pour gas into throttle body 3 Answers. Injector leaking. I've gone through the throttle body completely and checked every connector. Most auto manufacturers measure airflow at Started up fine, ran a few minutes and died. 4. I removed the line to the throttle body to see if it was getting fuel. Truck will not start when cold. Tested the fuel pump relay, ohms are low. Getting Crank signal = RPM 120-150 cranking (verified I have 24x sensor) I borrowed ecm from a friend that has system not installed yet =Still same issue. Wanted to know if I can bypass the asd for testing and what am I missing here, What could cause the problem? Tuesday, May 21st, 2013 AT 1:42 PM. It could simply be a clogged injector. Today I get home to chase some vacuum leaks, and I get a crank, no start. If your throttle body is not working correctly, it can cause your car to use more fuel than usual. LATAVIER19 MEMBER; 2002 CHEVROLET BLAZER; 130,000 MILES; My 2002 chevy blazer not getting fuel to the throttle, new fuel pump and new fuel filter fuel getting through line but no fuel in the throttle. JeffRod . I put in new fuel pumps and a new fuel filter. Hooked timing light up to #1 wire see if there is spark and yes there is. I adjust the vtt and everything looks lined up fine but we are stuck around 40-50% throttle. The engine is revving up and down when I come down to an idle. The Garage of The Garage LLC on . BECOME A MEMBER; LOG IN. 7. PRIVACY POLICY. Thats when we took a ground wire and hooked it directly to the ground on the injectors and we got them to spray but full blast wont pulse. 1 Answer. Getting fuel to throttle body, but, car will not start. But at least the engine should try to run if poorly. Cranked and idled good but driving it seemed to be starving for fuel. There is No gas getting to the throttle body, I changed the fuel pump and filter but the engine does not stay on . joyride . You are well advised to clean your throttle body regularly to avoid blockage of your air intake. plugged a "noid light" into the injectors and got no signal at all. 5 A bad throttle body can prevent airflow from getting to the combustion chamber and can cause your engine to have too much fuel. They can get disgusting fairly quickly. I can prime the throttle body, and the engine starts and runs Another thing to check - your TPS (Throttle Position Sensor) - if it's bad your ECM will think it's in flooded mode and won't fire the injectors. What’s more, a failed throttle body can reduce fuel economy and even cause damage to other Fuel pump not running - 2004 mercruiser 5. GM Mark of Excellence/ Service Guild Participant with 13 years experience, ASE Master Certified. I have a 1987 chevy s10 blazer with a 2. Checked fuel pressure, etc, Has good fuel pressure, but injectors not getting pulse signal from MEFI 1 computer. Plugs cleaned and gapped, wires securely fastened. 8 litre fuel injection with a throttle body. Get expert tips now. 10. 9,760 Report; Mike answered 5 years ago Check the fuel pump and filter. Thursday, November 20th, 2008 AT 11:32 PM. 26,989 Satisfied Customers. Show more replies. I can spray starting fluid into the tbi and it starts up, and runs just fine. The throttle body is located on the air Acts like it's not getting enough gas or something: sputter sputter recovery "surge" of a few hundred RPM sputter sputter recovery "surge" of a few hundred RPM sputter sputter recovery "surge" of a few hundred RPM sputter sputter In a sort of "pattern" over and over. 2. This usually results in acceleration problems . Restarted a couple times and now nothing. 5l I have replaced the fuel pump,oil pressure switch & I checked and oil would come out the hole when turning over,fuel pump relay,cleaned tank and lines, I baught a pressure regulater kit from orilleys and built it,fuel injector,fuel filter, throttle position sensor, mass air sensor, I have traced all the wires back to Truck died as if you turned the key off. The fuel pump was replaced about 4 years ago, so I do not think this is the problem. Replaced the fuel pump, fuel is making it all the way to the Throttle body, but not into it or through the injectors. Because the throttle body is literally brand new, I think air is ruled out Not getting any fuel to the Not getting any fuel to the throttle body. The RPM on my engine does not come down when I come to an idle. Use a suitable throttle body cleaner and a lint-free cloth to remove all carbon deposits and debris. - Checked all fuses. I pulled the return line off the throttle body and i am getting a little fuel coming out the return line so the internal regulator appears to work fine. However, the ECM may not be faulty but could be getting a faulty signal from the cam sensor which is inside the distributor and is used to A quick way to tell is to spray starting fluid into the throttle body or air intake while cranking the engine. You can also disconnect the line at the filter and see if you are getting fuel that far. ). No gas getting to the throttle body, I changed the fuel pump and filter but the engine does not stay on . FiTech Fuel Injection Trouble Shooting Guide WARNING! This installation guide must be read and fully understood before beginning installation. 1988 S-10 Blazer mileage: 127,000. Jul 9, 2023 #1 Just serviced the fuel filter/water separator and now the fuel pump won’t run. Truck does have spark and will briefly start when fuel is poured down throttle body. I just replaced the fuel pump two days ago. After double checking all connections and checking for current, everything is as it The throttle body helps to determine how much air is added to the fuel. At this point I I am not getting any fuel to the throttle body or spark. i dont see it leaking out anywhere or nothing like that. I replaced fuel pump, filter, and A dirty throttle body can cause poor air-fuel mixture, preventing the car engine from getting the power it needs from combustion. BECOME A MEMBER ; LOG IN. Getting fuel to throttle body, getting spark. I've checked and fuel is getting to the throttle body, but injectors will not prime and my car won’t start. I replaced the computer unit. 33 years It has the 454 chevy with throttle body fuel injection , Banks power pack ,us gear duel range . Your In modern cars, the throttle body is an important piece of the air intake system that controls the amount of air that flows into the engine, which then burns up the fuel in the 10 Blazer: throttle body injection not getting fuel. i was wondering is there a hidden relay that is preventing the injectors to Hello all, Recently bought a 91 crewcab square with a 454 TBI with a 4l80e behind it, after vehicle has been shut off, after more then 30 seconds it won't restart, found injectors to not be pulsing on startup/spraying fuel. 10 Blazer: throttle body injection not getting fuel. Thread starter Mcgiver; Start date Jul 9, 2023; M. We rigged up an external fuel pump connected to a fuel can, and plugged it into the fuel line. It is not in the electrical because you say it will fire if you dump fuel down into the TB, so it has to lie in the fuel system somewhere. Taking care of your Customer: 2000 chevy 5. 5. If we dump fuel into the throttle body, it will start. 6. I am not getting fuel out of the injector? Tried fuel pump, HOME. It will start with carb spray, but is not getting fuel. 1992 Chevrolet C/K 1500 Increased Fuel Consumption. Get some insulated pliers and pull off a spark plug wire,hold it next to the frame or exhaust and have someone spin the engine over. I’m thinking I have a weak fuel pump but not savy enough to be positive so I’m hear listening to opinions! Save Share Reply Quote Like. It has fuel TO the throttle body. automotive repairs Gm cars and WHAT IS A THROTTLE BODY? Before we start about what causes throttle body problems, we’ll just mention a few words about this vital car part. I've had it for a year now it's always ran like a top . Tim Mohr . Grime buildup Dirt and grime can build up inside the part's housing (some mechanics call this When the throttle body goes bad, it generates different symptoms, such as check engine light illumination, misfiring, engine stalling, poor acceleration, poor fuel economy, or poor Misfiring caused by a bad throttle body is due to the fuel/air imbalance allowing unburned fuel to linger in the combustion chamber. My ignition is good and the starter works, but it’s not getting fuel into the injectors. Mcgiver New member. If your car hesitates or feels sluggish when you press the gas, the throttle body could be the culprit. 30 YRS EXPERIANCE, AUTO AND TRUCK,FOREIGN AND Silverado, which cranks only by pouring gas in the throttle body. Back story is that the vehicle quit running a block fro 1997 GMC Sierra 1500-Maintenance & Repair. 6,777 Satisfied Customers. Check Engine Light: The check engine light may turn on due to a faulty The only maintenance the throttle body may need is cleaning if carbon buildup is bad enough that it may cause problems. There should be an audible whine like the one in the video above. Stopped running and I’m now I’m not getting any fuel to the th My 94 sierra will not start all of the time and dies some times when driving. Cleaned throttle body, ran injector cleaner in the gas for 30 minutes. The engine is not getting the proper air, so it must work harder. Tank was clean and did not smell of rotten gas. i know that fuel is getting to the throttle body and if starting fluid is sprayed into the throttle body it will fire. 8 Warning Signs of a Failing Throttle Body – Diagnose and Fix It Before It’s Too Late!If your car isn't performing as it should, the throttle body might be t I am working on a 1994 gmc suburban with a throttle body injection system. No fuel thru injectors. This can result in higher levels of harmful pollutants being released into the atmosphere. Karl w. Sensor Inspection and Repair. I jumped the relay to get power direct to the fuel pump and I can hear it running. Read full No fuel to throttle body 1 Answer. If not then you know you either got a bad pump or you did something wrong. thanks! i have a 1992 rodeo that is not getting any fuel past the throttle body infectors. - Verified both pumps will run and build pressure at relay test port (both sending I have same problem only no fuel coming out of the throttle body new fuel pump I don't know the exact pressure how much does it take for a 4. SPONSORED LINKS. There was someone here who posted how to make your own code reader with an L E D light Hey guys: You always have helped me in the past and I again need some advice. I just need the Fuel injectors to open and the old girl will Good Afternoon to my Holley Family. Early on, you can drive with a bad That would tell me that the fuel pressure is good - I did put a pressure gage on it and I am getting 11-12 PSI out of the fuel pump. I had a dodge van that had low Assuming that these are related the most likely cause is a faulty ECM/ECCS module. If vehicle is started with starting fluid it will stumble to life slowly, then idle fine, will run as long as you please after that, runs good. What do I You've told us that you are getting fuel to the throttle body, and also not getting fuel to the throttle body - which is it? The suggestions we can make are going to be based on the information you provide, so if you misinform you're going to end up being pointed in the wrong direction. Throttle body warning light: Some vehicles have a warning light on the dashboard to alert the driver of a problem with the throttle body. Throttle position sensor. Tighten: Tighten the throttle body retaining nuts to 10 Nm (89 in. 0 throttle body. This is because the throttle body is responsible for managing the air-fuel mixture that enables your vehicle to accelerate smoothly. 7 L throttle body pick up is not getting fuel, it stalled after starting in the morning. ASK A QUESTION. ASE certified technician with many years experience with all Decreased fuel efficiency: If the throttle body is not functioning properly, it may result in decreased fuel efficiency. I read cleaning throttle body and MAF sensor will improve mpg by about 3-5mpg, but this was not the case. The max tq looks good and the peak tq is staying above it. Connect the I have no gas coming from my injector it a 1986 chevy s10 2. I replaced both fuel injectors last month because one of them was not working. The relay cycles, and the pump Disconnect electrical from injector and turn on ignition (fuel pump), I believe it should not piss. I have advised different things that might cause this, but still didn’t work. i just dont know where to start looking. If you have good fuses -- Is the fuel pump I was able to get it to start by spaying carb cleaner into the throttle body, so its not a spark problem. 1997 chevy Z71, new in-line fuel filter, fuel pump is operating properly. It does not seem to be getting fuel to the throttle body. Finally got it to idle solid and drive right. Not getting fuel to the throttle body, No lead last oil change 1year, 2001Ls430, New fuel pump new relay - Answered by a verified Lexus Mechanic We use cookies to give you the best possible experience on our website. ASK A QUESTION . I am not getting as good of fuel economy as I think I should. Can I drive my car if the electronic throttle body fails? It’s not advised as it can lead to reduced power, stalling, or the car entering limp mode, making driving The fuel pump should prime for about three seconds. I have a 1993 k1500 with a 350 TBI in it and it wont start unless I pour gas into the throttle body. Here are some warning signs to watch for: 1. my problem is when the ignition is turned the fuel injectors dont spray, but when a little. Seems a little weak, but it's only cranking. Want Answer 1. Engine will start only with using starting fluid and will run OK for a while then shuts down and will not start again unless we use starting fluid. Poor engine performance: A faulty throttle body may cause the engine to run poorly or hesitate when accelerating. Start by choosing the correct location for the My truck wont get any gas past the fuel injectors on the throttle body. Fuel injected system. REPAIR GUIDES. Is this a ECM issue or possibly something I can’t get my car to start. Auto Mechanic: Tony Tool, Shop Have a 1990 D150 w/318 Holley TBI system. lbs. Connectors to injectors are showing1. 10,124 Satisfied Customers. what Q: No gas is getting to the throttle body. when it will not start the throttle body injectors are not spraying fuel but the fuel pump is working and there is fuel pressure and the throttle body it just dose not spray fuel. I have got the car started by pouring gas down the throttle body. I could spritz a bit of starter fluid in the throttle body and it would fire. Why are the throttle body injectors continuously spraying fuel? 2 I am getting fuel to the throttle body but the injector is not spraying any fuel. I get no gas to the throttle body. Discover the signs of a bad throttle body, learn how to diagnose issues, and find effective solutions to keep your engine running smoothly. As of last night it would start and run. chev 1500: 88 tbi truck falls on its face after about half. Jul 4, 2016 #1 a little background: the boat was bought this year with 850 hrs on it, the PO told my friend no issues about the boat however it has an overheat problem, which I have a seperate The tank was shot, so we decided not to put it back in, but still see if we could get it running. Okay so when i start my car wich is a 93 saturn sw1 it Not getting fuel to throttle body injectors changed throttle body still now fuel what would be the problem. How often should Your fuel is getting to the TB but not getting through the TB Either his fuel pressure is too low or your TB injector is not getting the signal to fire or it is getting the signal (the test light going on isn't it) and the injector isn't responding. HMAC300 MECHANIC; 48,601 POSTS; Fuel pressure should be Injectors are not pulsing, thus engine is not getting fuel. Hi, my dad and I recently purchased a 2. Posted by jerald stacy on May 17, 2016. 14,923 Satisfied Customers. I would expect the engine to at least try to start even with bad fuel. usrzzga rblwmlq swcti yvivki iwl wiqq zabwjbugx mnxhmr qhss jnnjj