Rampage L4-135 2.2L (1983)
Heater Core: Service and Repair
W/ Air Conditioning
Fig. 8 Air conditioning & heater hose routing
Fig. 9 Heater assembly. Models with A/C
1982 - 83 Models
1. Disconnect battery ground cable, then drain cooling system and discharge A/C system.
2. Disconnect heater hose at heater core. Plug heater core tube opening.
3. Disconnect vacuum lines at engine intake manifold and water valve.
4. Remove expansion valve ("H" valve), as follows:
a. Disconnect low pressure cut-off switch electrical connector, located on side of "H" valve.
b. Remove hex head bolt from center of plumbing sealing plate.
c. Pull refrigerant line assembly towards front of vehicle.
d. Remove two Allen head cap screws, then carefully remove the disassembled valve.
5. Remove hose clamp, then the condensate drain tube from evaporator heater assembly.
6. Remove evaporator heater assembly to dash panel attaching nuts, then depress red color coded tab on end of temperature control cable and pull
control cable out of receiver on heater assembly.
