Hyundai Coupes/Sedans 1986-1993 Repair Guide

Air Control Valve

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TESTING



See Figure 1



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Fig. Fig. 1: Air control valve location-1986-89 Excel

  1. Remove the air cleaner.
  2.  
  3. Disconnect the vacuum hose from the air control valve and connect a hand vacuum pump to the valve nipple.
  4.  
  5. Apply a vacuum of 2.8 in. Hg or less; the air control valve should be fully open (cold air).
  6.  
  7. Apply a vacuum of 7.5 in. Hg or more; the air control valve should be fully closed (hot air).
  8.  
  9. Replace the air control valve if it fails either test.
  10.  

 
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