gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Air Cleaner Housing > < A/T - 4L60-E Harsh 1-2 Gear Upshift/MIL/SES/CEL ON|Page 3921
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Idle Speed: Specifications

 

Engine should be at operating temperature (195 to 222 degrees F)

Park / Neutral

650  rpm 

   

  

 

Air Cleaner Housing > < A/T - 4L60-E Harsh 1-2 Gear Upshift/MIL/SES/CEL ON|Page 3921