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My vehicle dont want to start, replaced fuel pump and injectors are clean

I have preplaced the fuel pump, filter & checked injectors. Stil dont want to start

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  • Tom Chichester Jan 23, 2014

    Hi melanie jacobs, I want to help you with your problem, but I need more information from you. Can you please add details in the comment box? Vehicle year, make, model? Why were fuel pump and filter replaced?

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6 Answers

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ARE YOU SURE IT IS A FUEL DELIVERY PROBLEM? SPARK & FUEL ARE THE 2 THINGS THAT CAUSE A VEHICLE TO START AND RUN. IF IT USES "COILPACK(S) HAVE THEM /IT TESTED...LIKE AT AUTO ZONE...OTHER IGNITION SYSTEMS, MAKE SURE YOU ARE GETTING A FAT STRONG SPARK OUT OF COIL!....WHEN YOU TURN THE IGNITION SWITCH TO RUN POSITION (DON'T CRANK IT OVER)....WITH THE DRIVERS DOOR OPEN..YOU SHOULD HEAR A WHIRRING SOUND MOMENTARILY FROM THE REAR OF THE VEHICLE. THIS IS THE FUEL PUMP RUNNING. IF YOU DONT HEAR A FAINT HUMMING...THE FUEL PUMP
1. IS DEFECTIVE
2. IS NOT GETTING POWER
3. YOU HAVE A RELAY OR WIRING ISSUE (UNDER HOOD MAXI FUSE AS WELL). IF NOISE IS HEARD..GO TO SPARK DIAGNOSIS JEFF GEYER (517) 489-1566 OWNER AUTOWORX

Posted on Apr 05, 2014

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In addition to other answers, maybe a fuel pump relay.

Posted on Feb 23, 2015

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The Worx Group had it right as far as checking for pump noise. To add to the possible issues, on older cars you could have a bad fuse or fuse block (part of the "not getting power" suggestion). Additionally, some late 80's and early 90's Volkswagens had two fuel pumps.

Posted on Sep 06, 2014

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Depending on what type of vehicle your talking about, it could be a safety thing. Theft deterrent chip in the ignition. Reset your computer . Its easy to do and youtube will probably have a video on how to do it.

Posted on Apr 02, 2017

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I'd start with electrical problems like the battery, ignition control module and battery leads before delving into fuel delivery issues.

Posted on Feb 09, 2015

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1 Answer

94 Dodge diesel finally got it running and it stalls and doesn't want to start we pump it up and stil it still doesn't want to start


from your description there is still air getting into the pump
check that the fuel filter is on correctly and air tight
check and bleed all the fuel system including at the pump
loosen the injector lines at the injectors and crank until there are drips of fuel at the nuts
re-tension the nuts as you keep cranking as this process bleeds the air out of the injector lines
CAUTION--KEEP FINGERS WELL CLEAR OF THE NUTS AS THIS FUEL IS AT 20.000 + PRESSURE AND WILL PENETRATE THE SKIN

Sep 04, 2015 | Dodge Cars & Trucks

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Got 2002 grand prix driving just died i replaced fuel filter fuel pump cleaned all sencers still wont sty running what can i do


Did you check to see if it has spark at the plug wires ? Possible crankshaft position sensor ! Are the fuel injectors being commanded on by the PCM ? Did you check for fuel pressure with a fuel pressure gauge ? Just because you hear fuel pump running does not mean fuel is getting to the injectors ! Did you have the engine sensors data checked with a scan tool ? Mass air flow sensor !

Jun 12, 2015 | 2002 Pontiac Grand Prix

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My missus put e10 in bmw96 m3 model & then it keeped cutting out power wise,then completely now won"t start at all.


Hi first thing I would do is drain your fuel tank. E10 can be great fuel for later model vehicles designed to run on it, or even occasionally for those that are not. but it is a hard fuel to regulate as the mixture has to be very precise. after draining your fuel tank i would work backwards towards your motor, so this is the order that i would flush and do. -remove fuel pump and clean (checking for a filter in it) -remove fuel filter -flush fuel lines - remove injectors and have cleaned ( will also improve fuel economy and power) -refit injectors -fit NEW fuel filter reasemble.
once you have filled your fuel tank back up with clean fuel (best bet is to use a high octane Premium fuel) turn your ignition on, but do not start car. wait for the fuel pump to prime (as it should be loud as it will be empty), for a couple of minutes then start car. it may take a few attempts to start once cleaned as the fuel system will be completely dry, but dont let that scare you off.
i hope i have helped

Jan 11, 2011 | 1996 BMW 3 Series

1 Answer

Need to click ignition over twice, listening for fuel pump to stop after each time to get a good start. Starts instantly once it has enough fuel. Is this in the injector system, filter or what?


Could be one or all of those things, obviously first step is to listen for your elec. fuel pump to engage and prime your fuel system, you may have a relay that's going bad to fuel pump and may wish to check/replace that before proceeding. It wouldn't hurt to change your fuel filter if it's not been changed in a while and even more so of a reason since you're experiencing problems somewhere in fuel delivery. Next you should check your fuel pressure at the fuel rail. That will show you if fuel flow is restricted or that you have a faulty fuel pump. If that checks out ok I would suggest having injectors inspected/cleaned/replaced if needed. It's easy enough to do yourself and here's instruction if you choose to do so. First step is your safety wear safety glasses and have a fire extinguisher nearby before you start, from there will need to remove each injector and have something to catch fuel in, next start vehicle and observe spray it should be an even stream (use a spray can of carb cleaner to clean injector) clean it and reinstall and repeat steps for each injector (replace faulty injectors as needed). hope this gives you a better idea to fix it, good luck and let me know if you need any further assistance

Dec 23, 2010 | 2002 Chevrolet S-10

1 Answer

The truck was sitting for about 10 years, everything electrical works, i replaced the spark plugs, wires and rotor before even trying to turn it over, the engine wants to turnover and the spark plugs are...


if its carberated, u need to clean that out. if its fuel injected, replace the fuel filter. if it stil dont work. then u have a fuel injector problem

Mar 05, 2010 | 1986 Toyota 4Runner

2 Answers

Vehicle won't get feul to crank. we replaced fuel


Of course you will need to check to see if the fuel pump is actually pumping, or damaged. I suggest that you remove the fuel filler cap, then have someone turn the ignition switch on while you listen through the fuel fill inlet to see if you hear the pump turn on for a few seconds then off. If you're hearing nothing and have no fuel, either the vehicle is not telling the pump to turn on, (verify voltage at the pump electric connection) or the pump is bad.

Generally, when you turn the ignition on, you should hear the pump for a second or two as it builds pressure, after replacing the fuel filter, you may need to do this several times to get pressure to the injectors, and to do that, just cycle the switch to on, then off, in 4 or 5 second intervals. The pump if working, will build pressure eventually allowing the vehicle to start. No need to crank, until you have fuel pressure, Just to "ON", then "OFF" several times.

I hope that you took the time to put some fuel injector cleaner (1/2 filled w/Gumout) into your new fuel filter when replacing it, it's a cheap fuel injector/fuel system cleaning method I've used for years when replacing fuel filters. It can cause a sputter or two initially, but does a good job.

good luck

Feb 28, 2010 | 1996 Chevrolet K1500

2 Answers

Hard start on cold mornings; replaced plugs but did not fix; fuel filter?


If the vehicle runs normally otherwise, your fuel filter is likely not the problem. A plugged fuel filter would likely cause misfiring under load, such as when going uphill.

Make sure, by the way, that you do not touch the gas pedal when starting. That could make it hard to start.

Old fashioned cars used a choke to feed it more fuel for a cold start. Modern cars use a computer to feed the fuel injectors more fuel on a cold start, and rely on a sensor or two to know that it's cold.

Couple of possibilities here:

a) Has the check engine light been on? If you have a bad sensor, such as oxygen, throttle position, or coolant temp sensor, the computer may have an error code stored in it's memory about this.

b) How many miles on the vehicle? Some other problems could be leaky injectors, leaky injector 0-rings, or intake manifold air leaks, all making it difficult to start when cold.

A fuel pressure gauge on the fuel rail would tell you if a leaky injector is causing the fuel pressure to drop....then a cold start would be difficult if there is no pressure in the system.

If there is a leaky o-ring or intake manifold, the vehicle will typically misfire and/or light a check engine light.

Oct 16, 2009 | 2000 Chevrolet Blazer

1 Answer

Engine bogs down at 55mph. ive replaced the entire distributor and components. new plugs wires cap rotor fuel pump fuel lines,,,everything. but it stil bogs at like 55-60mph. even replaced fuel filter and...


check you vacuum advance for the disrtibutor , it maybe advancing , throwing your timing off at high speeds. Also check fuel injectors they may need cleaning throwing off the fuel to air ratio.

Jul 10, 2009 | 1983 Chevrolet K2500

1 Answer

The fuel injectors


the first thing you should check if your car doesnt start is compression, then ignition, then fuel, in that order, even if you got spark and fuel without compression your going no where

Mar 24, 2009 | 1992 GMC Jimmy

2 Answers

EA FORD


Dazzad

Im assuming this is a 3.9 ltr 6cyl?
any way there is always three things to check in regards engine not starting.

1. Compression
2. Spark
3. Fuel. "make sure you have fuel in the tank" first :)

If your vehicle is EFI

If you cannot smell fuel. Carry out these simple checks.
When the ignition is on engine off, Do you hear the fuel pump prime. This is noticeable by a short buzzing noise in the rear of the vehicle and then it will stop,

If noise is not present check the fuel pump fuse, then the relay, and last of all the fuel pump.

If the fuel pump is operational.
Make sure the fuel filter is not blocked and obstructing delivery of fuel to the injector.
If the fuel filter is ok, remove the injector plug from a injector and using a led circuit tester, or a noid lite. check for injector pulse.

If there is no injector pulse then it would possibly be a ignition module http://www.injectacarb.com.au/ford-falcon-eaed-ignition-module-p-40.html if this model of vehicle still uses a distributor

This only because I dont know if your vehicle is 3.2 ltr, 3.9 ltr single point inj, or 3.9 multi point inj,

ps: To check for injector pulse, using a LED TEST light just connect the test light in between the 2 terminals off the injector plug, and check for flickering of the led, this will say that the injector is pulsing.

A noid lite basically justs fits into the injector plug .

I hope this helps, let me know if you need more help.
Regards.


Jul 04, 2008 | 2000 Ford Focus

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