Toyota Tercel 1984-1994 Repair Guide

Expansion Valve

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REMOVAL & INSTALLATION



See Figures 1 and 2


CAUTION
On models equipped with a Supplemental Restraint System (SRS) or "air bag,'' work must NOT be started until at least 90 seconds have passed from the time that both the ignition switch is turned to the LOCK position and the negative cable is disconnected from the battery.

In certain areas it may be illegal to service air conditioning components unless you are certified, consult with your local authorities.

  1. Recover the refrigerant from the system. Please refer to Routine Maintenance .
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Remove the cooling unit.
  6.  
  7. Remove the evaporator from the cooling unit.
  8.  
  9. Remove the expansion valve from the evaporator. On threaded-type expansion valves, always use a back-up wrench on the other fitting to avoid bending the tube.
  10.  

To install:
  1. On threaded-type valves, connect the expansion valve to the inlet fitting of the evaporator. Torque to 16 ft. lbs. (22 Nm). Connect the refrigerant tube to the inlet fitting of the expansion valve. Torque to 10 ft. lbs. (13 Nm). Always use new O-rings.
  2.  
  3. On block-type valves, torque the attaching bolts to 48 inch lbs. (5.4 Nm). Use new O-rings as necessary.
  4.  
  5. Install the evaporator in the cooling unit.
  6.  
  7. Install the cooling unit in the vehicle.
  8.  
  9. Evacuate, charge and leak test the air conditioning system.
  10.  



Click image to see an enlarged view

Fig. Fig. 1: Removing a threaded-type expansion valve. Note the use of a back-up wrench on the other fitting



Click image to see an enlarged view

Fig. Fig. 2: Block-type expansion valves are retained by small bolts

 
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