2000 GMC Yukon Idle Issue

2000 GMC YUKON
108,000 MILES • V8 • 2WD • AUTOMATIC
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TURNER528
  • MEMBER
  • 1 POST
My 2000 Yukon periodically lowers it's idle to about 200RPM and jumps back to 500RPM as if it wants to stall. I thought it was the IAC valve, but the 2000 model does not have one. Could the throttle body need cleaning? What else could it be?

Turner528
Nov 9, 2008 at 12:50 PM
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DENNYP
  • ✓Experienced Mechanic
  • 1,824 POSTS
Clean the inside of the throttle body and replace the pcv valve.
Nov 19, 2008 at 7:16 AM
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