Dodge Aspen/Volare 1976-1980 Repair Guide

Heater Assembly

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On non-air conditioned cars, it is necessary to remove the heater assembly to remove either the blower motor or the heater core. Use the following procedure.

REMOVAL & INSTALLATION





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Fig. Fig. 1 Exploded view of the heater control assembly and cable routing



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Fig. Fig. 2 View of the heater assembly and related components


WARNING
This is a major disassembly operation.

  1. Disconnect the battery ground cable and drain the coolant.
  2.  
  3. Disconnect the heater hoses at the firewall. Plug the core tubes to prevent spillage.
  4.  
  5. Slide the front seat all the way back.
  6.  
  7. Remove the core tube firewall seals and retainer.
  8.  
  9. Remove the instrument cluster bezel by removing the four screws along the lower edge, placing the automatic transmission selector in 1, and pulling out to detach the upper edge clips.
  10.  
  11. Remove the instrument panel upper cover by removing the mounting screws at the top inner surface of the glove box, at the brow above the instrument cluster, at the left end cap mounting, at the right side of the pad brow, and in the defroster outlets.
  12.  
  13. Remove the steering column cover (the instrument panel piece under the column).
  14.  
  15. Remove the right intermediate side cowl trim panel. Remove the lower instrument panel (the part with the glove box). Remove the instrument panel center to lower reinforcement.
  16.  
  17. Remove the right vent control cable, the temperature, and heating mode door control cables from the unit.
  18.  
  19. Disconnect the blower motor resistor block wiring.
  20.  
  21. Remove the mounting nuts on the engine side of the firewall.
  22.  
  23. Remove the heater support-to-plenum bracket.
  24.  
  25. Remove the heater unit.
  26.  

Use the following procedure to remove the core or blower motor.

  1. Remove the heater assembly from the car.
  2.  
  3. Remove the retainer clips and separate the housing halves.
  4.  
  5. Remove the screw attaching the seal retainer and seal around the core tubes. Remove the core tube support clamp.
  6.  
  7. Slide the core out.
  8.  
  9. Remove the blower vent tube and the blower mounting nuts. Remove the blower motor.
  10.  

 
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