RE- MY PREVIOUS QUESTION,ENGINE BRAKING/SPEED CONTROL

  • Tiny
  • duncan123
  • 1998 GMC Jimmy
  • 228,000 miles

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?

Tuesday, April 24th, 2012 AT 9:57 PM

1 Answer

  • Tiny
  • hmac300
  • Expert
  • 43,007 posts

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.

Was this
answer
helpful?
Yes
No
Tuesday, April 24th, 2012 AT 10:41 PM

Please login or register to post a reply.

Similar Questions