With Automatic Temperature Control

REMOVAL

Plenum And Air Inlet Duct Removal:

1. Remove the plenum assembly. See Plenum-Heater Core Case/Removal And Installation. Service and Repair

Servo Motor Assembly:

2. Remove the Automatic Temperature Control (ATC) servo from the plenum.

Fig. 5 Typical heater core removal. 1982---88:

3. Remove the four retaining screws from the heater core cover. Remove the cover from the plenum assembly.
4. Pull the heater core and the seal assembly from the plenum assembly.