Question about 1989 Pontiac Firebird

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I have a 1989 Pontiac Trans Am, 305 V-8, 5.0L engine code ''F''. The car was running very rough. After painstakingly replaceing all 8 fuel injectors, it still runs rough. What else could it possibly be? I'm running out of options. I've replaced the ECM, IAC, fuel filter, etc.

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  • kpcharmd1 Oct 03, 2009

    Yes. I also had the transmission rebuilt in 2005. When the car is running and parked it runs fine, soon as you put the car in either drive or reverse and start to roll it wants to buck. Sounds as though it has jumped time, but there's no way to check for that - there's no timing belt.

  • ypguy May 11, 2010

    Have you had the Catalytic Converter checked?

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How many miles on this engine?

Posted on Oct 03, 2009

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