Question about 1991 Pontiac Firebird

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I have a 1991 Firebird V8 305 with TBI. Car was

I have a 1991 Firebird V8 305 with TBI. Car was intermittantly dying while going down the road. Changed the fuel pump and filter. Now cannot get fuel pump to turn on. Checked plug on pump. I have 3 prongs and am only showing power to 1. If I put fuel down TBI, it will start but will die once fuel is gone. Had fuel pump checked and is OK.

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Check your fuel pump relay

Posted on May 12, 2009

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1 Answer

Car will not start after replacing fuel pump 1989 mercury cougar


did you change the fuel filter. do you know its getting fuel to the fuel rail. is the fuel pump the reason it died ???

Dec 28, 2013 | Cars & Trucks

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1991 geo storm gsi,Was going down the road fine and all of a sudden It cut off and cannot restart it what could be the possible problem or cuses.


same answer for all cars made 1920 to now.
never restarted ,ever ? gee , a little hint...?
1: lost engine compression hot, (gee forgot to do the 60k serviice/)
2: lost spark , yes, check spark at all 4 cyl. if bad check coil spark.
3: lost fuel or too much fuel called flooding.

one removes a spark plug, it drips of fuel , say all 4.
flooding.
crank motor at WOT, wide open throttle to clear flooding.
if the spark is good and the spark tips are dry, then try test fuel
if car starts and dies. then you lost injection.

easy huh> with the above you know exactly why it fails.
compression bad
spark
fueling.

1991 i think is TBI single injection engine, i can look it up but
no i wont. we need to do the tests first to get there.

Oct 03, 2013 | 1992 Geo Storm

1 Answer

Why does my car try to die when i drive down the road?


Try to check the ignition coil, when you driving it become hot then the car dies end won't start. After awhile when it's cold, then it will start. Replace the ignition coil.
I hope it solves the problem

Jun 16, 2013 | 1991 Honda Civic

1 Answer

I have a 91 firebird with tbi that doesnt spray i have primed it and the car runs but dont idle i had to break ignition and the secrity light does come on and the fuel pump works and is getting gas to


may be you should make a diagnostic and you can do it in a garage or you can do it by yourself if you want to do it by yourself you need some tools and you can find some good ones here: xcardiag.com

Mar 26, 2013 | 1991 Pontiac Firebird

1 Answer

Please help fix my car


Sounds like it may be a Fuel supply problem. Which would indicate a Fuel pump. Does it run a little better if you step on the gas alittle if so then it is the fuel pump. When was the fuel filter changed last?

Sep 06, 2012 | 1988 Pontiac Firebird

1 Answer

1988 gmc 5.7l tbi engine starts and stall after about 2-3 second of starting what could be making the fuel cut-off which is what i think is happening, how do I resolve this problem? checked ground signal...


Very common sign of a bad fuel pump. If the fuel pump goes bad, or starts to go bad it starts shorting out and will make all the signs and symptoms that you are talking about.

May 27, 2011 | 1991 GMC G3500

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