1995 Lumina Hesitation/Stumble

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1995 Lumina Hesitation/Stumble

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Chevrolet Forum >> Chevy Cars >> Monte Carlo >> 1995 Lumina Hesitation/Stumble

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1995 Lumina Hesitation/Stumble - 8/18/2008 6:32:20 AM

wilke_jb

Posts: 1
Joined: 8/18/2008
Status: offline

I have a 1995 Lumina. It idles nice. You can rev it in neutral up to about 3500rpm then it stubles - almost like it is hitting a rev limiter - not the problem, just a symtom. When you go to drive it, when you initially step on the gas it will stumble and buck BADLY, sometimes it will ''catch'' and will go like a bat out of you know where. I had the fuel pump and filter replaced, and the fuel pressure all looks good and I just did a tune up, wires and plugs. The coil packs ohm out ok, there are no codes to speak of. I have an actron CP9185 scan tool to check the codes and see live data. The tool says that I have a bad ''Quad driver 4'' - but some have said that the tool will say this in error? I am leaning toward something in the transmission, but I''m not sure. I really don''t know what to do with this car and any help would be appreciated.