GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat (
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93seboi 03-12-2009 11:37 PM

smell gas
when ive just drove 70mph on e-way for bout 10miles once im off it seems like the car is idle high when sittin at a light the rpm hand seems to being kinda moving under 1 a little and it feels like it wont to shut-off but i dont .and when driving after the e-way run when im hitting the gas the rpm hand is high

Danthurs 03-12-2009 11:39 PM

Could be a bad catalytic converter.

93seboi 03-12-2009 11:43 PM

sometimes on the e-way hiting the gas over 60 kinda feels like the engine is hesitatin

Danthurs 03-12-2009 11:44 PM

That all sounds like a plugged cat.

93seboi 03-12-2009 11:45 PM

ok well can u tell me why the rpm hand moves when turning the steering wheel

Danthurs 03-12-2009 11:52 PM

That sounds like possibly a bad or corroded ground. I'm not sure where all the grounds are on your year.

93seboi 03-12-2009 11:55 PM

could it be a engine mount

Danthurs 03-12-2009 11:56 PM

A engine mount? You lost me here.

AbuDhabiBonneville 05-21-2009 04:35 PM

I think the fluctuations in RPM when turning steering at idle are due to the power steering pump taking some power out of the engine when turning the wheels.

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