Chris

Tiny
CHRISGUY
  • MEMBER
  • 1991 GMC SIERRA
  • V8
  • 2WD
  • AUTOMATIC
  • 360,000 MILES
My GMC 1991 truck I have to rave it up to 3&4 thouands RPMs be for it goes in to revers
Friday, January 28th, 2011 AT 3:17 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If your saying it won't idle, check that first. Clean throttle-body, also IAC/idle air control. How long since a tune-up? Any applicable mil codes, you can check those codes yourself.
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Monday, March 7th, 2011 AT 9:47 PM

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