Chrysler Full-Size Trucks 1989-1996 Repair Guide

Idle Speed Adjustment

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See Figures 1

  1. Start the engine and run until at normal operating temperature.
  2.  
  3. An optical tachometer must be used to read engine speed; a conventional tachometer connected to the coil is useless in this instance.
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  5. Turn the air conditioning ON , if equipped.
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Fig. Fig. 1: Turn the screw shown to adjust the low idle speed

  1. Turn the idle speed screw until the desired idle speed is obtained. The specification for a vehicle equipped with automatic transmission is 700 rpm. The specification for a vehicle equipped with manual transmission is 750 rpm.
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