Question about 2001 Pontiac Firebird

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Car starting issues

I have a 2001 pontiac firebird 3.8 and i recently replaced the fuel pump and it ran great for one day, then the following day i went to start the car and i had to try and start it about four times before it would actually start. Then it was a rough start. Its been doing it ever since. I had the fuel pressure regulator replaced in hopes that was the issue and it didnt work. Its giving a code of P0171 and P0174. Im tired of putting money into stuff that isnt solving the issue. Any ideas on what other problems could be causing this? thanks so much

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  • ashley doney
    ashley doney Mar 19, 2014

    I also replaced the fuel filter about three months before the fuel pump went out

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  • Pontiac Master
  • 3,187 Answers

What yo may have is a flow pipe problem, it the pipe from the pump to the tank top. it does happen some times when you change the pump. with the engine running put your ear to the tank you probably hear it dripping back into the tank from the pump. sometimes can be herd some times not depends on how the seal has gone on the connector will give you ruff running and will not start as pressure is to low also cut out at speed. also to add when ever you need to change the pump always change the filter as you can dislodge muck stuck to the bottom of the tank and it will fill the filter more quicker.

Posted on Mar 19, 2014

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 35 Answers

SOURCE: car wont start second time since i bought recently

Hi centi1999.First of all,from what you discribe,it will NOT be you fuel pump.Accually,the problem that you describe is very common.The security system has a problem.The pass-key sensor will most likelt be the problem.You have to replace the key cylinder lock because the sensor is not sold seperatly.Try this,try to start the car,after you turn the key all the way forward,let it go.the key will stay in the run possition as if the car had started.leave it there.It will take about 5 to 10 minutes for the security light stops flashing.Then turn the key back to the off position,remove the key,then try to start the car.This should reset the security system for a while.But,you will have to replace the pass-key sensor to fix the problem.Good luck.

Posted on Sep 29, 2008

Molson02536
  • 3854 Answers

SOURCE: 1996 Pontiac Firebird-will not start, when it does, runs rough

Check the fuel pressure at the shredder valve, make sure there is the proper fuel pressure, I think it needs to be between 60PSI to 65PSI but double check that. If the fuel pressure is correct the crankshaft and camshaft sensor send signals to the ECM which trigger the proper injector to pules at the right time. Recap: check the fuel pressure if that is correct, have the car scanned for any DTC codes. Oh and just in case you have no fuel pressure, check the fuse to the fuel pump and fuel pump relay. Keep me posted , be glad to help.

Posted on Jun 04, 2009

  • 10 Answers

SOURCE: Recently got my fuel pump replaced but car died a few days later?

check your fuel filter

Posted on Aug 10, 2009

  • 491 Answers

SOURCE: fuel pump location 2001 pontiac grand am

The fuel pump is in the fuel tank.Sit in the car.....turn on the ignition switch to run.....listen very closely to the rear of the car...or have someone kneel down by the back wheel.....you should hear a "prime cycle"......the pump running for 2 or 3 seconds if the key was off for 15 seconds before trying this.If you hear silence you most likely need a fuel pump.Before pulling the tank down....check for power on the gray wire at the fuel tank connector just ahead of the rear axle under the car.Check for power with a test light that will last for 2 to 3 seconds as you turn on the key to run.Power means you really most likely need a pump.No power means you may need a fuse or a fuel pump relay.

Posted on Aug 11, 2009

  • 355 Answers

SOURCE: Possible security light problem on 1999 pontiac firebird...

if you have the chip in the key, then this will surely help you: http://newrockies.com/vatsbypass . It was the only thing that saved my car.

Posted on Mar 08, 2010

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