GM Cutlass RWD 1970-1987 Repair Guide

Slow Idle Speed Adjustment

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  1. Run the engine to normal operating temperature.
  2.  
  3. Insert the probe of a magnetic pickup tachometer into the timing indicator hole.
  4.  
  5. Set the parking brake and block the drive wheels.
  6.  
  7. Place the transmission in Drive and turn the A/C Off.
  8.  
  9. Turn the slow idle screw on the injection pump to obtain the idle specification on the emission control label.
  10.  

 
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