Toyota Tercel 1984-1994 Repair Guide

Evaporator Core

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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. Separate the upper and lower halves of the cooling unit case. It is usually retained by screws and clips.
  8.  
  9. Remove the expansion valve from the evaporator, if necessary. Refer to the appropriate procedure later in this section.
  10.  
  11. Inspect the evaporator fins for blockage.
  12.  

To install:
  1. Connect the expansion valve to the evaporator.
  2.  
  3. Install the upper and lower case of the cooling unit.
  4.  
  5. Install the cooling unit in the car.
  6.  
  7. If the evaporator is being replaced, add 1.4-1.7 fl. oz. (40-50 cc) of refrigerant oil to the system. On 1984-1986 sedans and all wagons, use Densoil 6, Suniso 5GS or equivalent. On 1987-1993 sedans, use Densoil 7 or equivalent. On 1994 models, use ND-Oil 9, made expressly for use with R134a. Do not use R-12 refrigerant, oil or components on R134a systems and vice versa. Expensive system damage will result, as they are not compatible.
  8.  
  9. Evacuate, charge and leak test the air conditioning system.
  10.  



Click image to see an enlarged view

Fig. Fig. 1: A small prybar can be used to release the retaining clamps



Click image to see an enlarged view

Fig. Fig. 2: Always use a back-up wrench when disconnecting threaded fittings

 
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