gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Idle Speed|Adjustments > < PROM - Engine High Idle/Flare When Shifting Gears|Page 2918
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Idle Speed: Specifications

 

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

Automatic 600 rpm 

In Drive

 

   

  

 

Manual

700 rpm 

   

  

 

Idle Speed|Adjustments > < PROM - Engine High Idle/Flare When Shifting Gears|Page 2918