GM Blazer/Jimmy/Typhoon/Bravada 1983-1993 Repair Guide

Idle and Wide Open Throttle (WOT) Vacuum Switch

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REMOVAL & INSTALLATION



See Figure 1

  1. Disconnect the negative battery cable.
  2.  
  3. Disengage the electrical harness connector.
  4.  
  5. Disconnect the vacuum hoses from the sensors. Tag them to assure proper installation.
  6.  
  7. Remove the idle and the WOT vacuum switch.
  8.  
  9. Installation is the reverse of removal.
  10.  



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Fig. Fig. 1: Closed loop emission system components - 1.9L engine

 
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