PL720 2WD L4-2488cc 2.5L DSL (SD25) (1985)
Heater Core: Service and Repair
1.
Disconnect battery ground cable and drain cooling system.
2.
On models with A/C, disconnect heater hoses in engine compartment.
3.
Remove screws securing console and remove console.
4.
Remove steering column shroud and package, if equipped.
5.
Disconnect speedometer cable, antenna lead and wiring harness connectors to instrument panel.
6.
Remove 3 bolts securing instrument panel at base of windshield, remove bolt securing panel bracket above parking brake handle, and remove bolt
inside glove box.
7.
Remove 2 bolts securing instrument panel at each end, then remove instrument panel assembly.
8.
On models without A/C:
a. Remove duct to bower housing and disconnect control cable at air intake door.
b. Disconnect heater hoses at heater unit, taking care not to drip coolant in passenger compartment.
9.
On models with A/C, remove air intake housing as outlined in ``Blower Motor, Replace,'' and remove bolts securing evaporator case.
10.
Remove bolts securing heater case and remove case and control as an assembly.
11.
Set temperature control lever in COLD position, disconnect control cables, and remove control assembly.
12.
Disconnect control rod at water valve and heater hoses at heater core.
13.
Remove screws securing water valve and remove valve and hoses.
14.
Remove clips securing heater case, separate case and remove heater core.
15.
Reverse procedure to install, then adjust controls.