RE- MY PREVIOUS QUESTION,ENGINE BRAKING/SPEED CONTROL

1998 GMC Jimmy

Tiny

duncan123

April, 24, 2012 AT 9:57 PM

I had considered low compression, but would that cause speed creep and high rpm at idle [ie. My foot is off the gas]?Also car has lots of getup and go, that does not sound like low compression to me?

FOUND 28 RELATED QUESTIONS

1 Answer

Tiny

hmac300

April, 24, 2012 AT 10:41 PM

Try cleaning the throttle plate on both sides with choke cleaner, they stick. Also clean iac valve hole. Check for a vacuum leak while under hood with choke cleaner.

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