Question about 1985 Pontiac Firebird

1 Answer

Motor rotates but appears to be no fire

Put 355 in car that had an electronically carburated motor. changed to regular carb/ i take set-up. previous owner hacked wiring for electronic carb, but still ran. now that those wires arent used at all i removed them. basically is all the wires from the computer. whent to go and start it and the engine just rotates and dosent fire

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  • gitinrdone7 Nov 15, 2008

    the carb has been changed to a edelbrock 4 barrel. basically wired it to be 10 oercentt carburated with no fancy things

  • gitinrdone7 Nov 15, 2008

    sorry...its been a long 2 days with no sleep and this car is stressing me out. my luck always runs like this with cars....i tried to mean regular carb as in , non half electrically controlled...

  • gitinrdone7 Nov 16, 2008

    not a problem...i did figure someting out and it fixed it. come to find out the valves were adjusted too tight and i guess allowed the valves to be open at the same time......cause we fixed the adjustment and it fired right up. that really didnt cross my mind.

  • gitinrdone7 Nov 17, 2008

    thank you ....hope to hear from you again

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  • Pontiac Master
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If the electronics have been cut up it could be anything, also the electronic Qjet does not flow enough for a 355CI V8, I know this from hard won experience on my 82 trans am

Posted on Nov 15, 2008

  • 1 more comment 
  • yadayada
    yadayada Nov 15, 2008

    You said regular carb, the edelbrock is a performance carb, yet you give a Thanks for Trying??? Come on now I help for free, do you think that is fair??

  • yadayada
    yadayada Nov 16, 2008

    I have found when cars get to you with weird problems step back, talk to others about the issue and see if someone has a fresh idea, it is really hard to diagnose over this keyboard, I know for sure if I where there I could find the problem in short order, your kind of issue is all I did for 20 years, every weird *** problem went to good old Dennis, Why? because my Boss knew even though I would ***** allot I almost always fixed the car, a few I handed off, but they where finally fixed by my partner. Thanks for changing the rating, I really appreciate that allot.

  • yadayada
    yadayada Nov 17, 2008

    Had the same issue with the 350 I had built and put in my Nova, but lucky for me I had seen it before on my 82 Trans Am when the engine was replaced with a 350 H.O. Glad you got it, been nice to help you! Thanks for using FixYa!

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