Toyota Camry 1983-1996 Repair Guide

Heater Water Control Valve

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REMOVAL & INSTALLATION



See Figures 1, 2 and 3

  1. Partially drain the engine coolant from the radiator.
  2.  



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Fig. Fig. 1: The heater control valve is usually a plastic box located near the firewall

  1. Mark and disconnect the cable from the heater control valve.
  2.  
  3. Disconnect the heater hoses from the heater control valve.
  4.  



Click image to see an enlarged view

Fig. Fig. 2: Water control valve hose routing-1983-87 models



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Fig. Fig. 3: Water control valve hose routing-1988-91 models

Be careful not to pull on the heater core tubes when removing the heater hoses, since the heater core can be easily damaged.

  1. Remove the bolt and the heater control valve.
  2.  

To install:
  1. Install the bolt and the heater control valve.
  2.  
  3. Connect the heater hoses to the heater control valve, making sure that the hoses and the clamps are past the outer flaring of the heater control valve tubes. Use new clamps.
  4.  
  5. Install the control cable to its premarked position.
  6.  
  7. Fill the cooling system, then start and warm the engine, making sure it stays full.
  8.  
  9. Stop the engine, pressure test the cooling system and check for leaks. Check for proper heater operation.
  10.  

 
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