Rough IDLE and Stalls

Tiny
BONECOLLECTOR2012
  • MEMBER
  • 1997 GMC SIERRA
  • 140 MILES
My 97 GMC Sierra has a really rough idle and it dies when you stop at a lighht. What could thhat be?
Sunday, August 19th, 2012 AT 2:00 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Look for vacuum leaks. Check to see if the injectors are working correctly. The spray patterns should be the same.

Check fuel pressure.

Throttle body gaskets are common failures for this condition

Roy
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Sunday, August 19th, 2012 AT 2:10 PM

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