Toyota Camry 1983-1996 Repair Guide

Heater Core

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If your vehicle is equipped with air conditioning, refer to Routine Maintenance for information regarding the implications of servicing your A/C system yourself. Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components.


CAUTION
Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

REMOVAL & INSTALLATION



1983-91 Models
  1. Disconnect the negative battery cable.
  2.  
  3. Position a suitable drain pan under the radiator, and partially drain the cooling system.
  4.  
  5. Remove the console, if so equipped, by removing the shift knob (manual transaxles), wiring connector, and console attaching screws.
  6.  
  7. Remove the carpeting from the tunnel.
  8.  
  9. If equipped, remove the cigarette lighter and ash tray.
  10.  
  11. Remove the package tray, if it makes access to the heater core easier.
  12.  
  13. On some models unscrew and remove the center air outlet.
  14.  
  15. Unscrew the bottom cover/intake assembly and withdraw.
  16.  
  17. Remove the cover from the heater control valve.
  18.  
  19. Unbolt and disconnect the heater control valve.
  20.  
  21. Loosen the hose clamps and disconnect the hoses from the core.
  22.  
  23. Remove the core from its housing.
  24.  

To install:
  1. Install the core into the housing and connect the inlet and outlet hoses. Tighten the hose clamps.
  2.  
  3. Install the heater control valve and valve cover.
  4.  
  5. Attach and secure the bottom cover intake assembly.
  6.  
  7. Attach the central air outlet and tighten the screws.
  8.  
  9. Posiotn and secure the package tray if it was removed.
  10.  
  11. Insert the cigar lighter and ash tray if it was removed.
  12.  
  13. Reattach the tunnel carpeting.
  14.  
  15. Install and secure the console components.
  16.  
  17. Fill the radiator to the proper level with a good brand of ethylene glycol brand coolant.
  18.  
  19. Fill the cooling system to the proper level.
  20.  
  21. Install the remaining components, reconnect the battery, then start and warm the engine, making sure that the cooling system stays full.
  22.  
  23. Stop the engine, pressurize the cooling system and check for leaks. Check the heater operation pressurized.
  24.  

1992-96 Models

See Figures 1, 2 and 3

  1. Disconnect the negative battery cable.
  2.  
  3. From under the dash, remove the heater protector from the front of the A/C and heater unit. It is attached by two clips.
  4.  



Click image to see an enlarged view

Fig. Fig. 1: The heater protector is a panel attached to the front of the unit

  1. Unscrew and unclasp the heater core. Disconnect the heater pipes.
  2.  



Click image to see an enlarged view

Fig. Fig. 2: There are three screws holding the pipe clamps

  1. Pull the core out of the vehicle.
  2.  



Click image to see an enlarged view

Fig. Fig. 3: Slide the core out in this direction from the unit

To install:
  1. Place the core into the A/C and heater unit.
  2.  
  3. Connect the heater pipes.
  4.  
  5. Install the 3 clamps and screws to secure the unit.
  6.  
  7. Install the heater protector.
  8.  

 
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