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(9) Carefully remove the foam seal from the heater core and evaporator coil tube mounting flange of the (10) Use a screwdriver to pry off the two snap clips that help secure the upper and lower heater-A/C (11) Remove the 14 screws that secure the upper and lower heater-A/C housing halves to each other. (12) Carefully separate the upper heater-A/C hous- ing half from the lower half. ASSEMBLY (1) Assemble the upper heater-A/C housing half to the lower half. During assembly, be certain of the fol- (a) That each of the mode door pivot shaft ends is properly engaged in its pivot hole (Fig. 42). (b) That the blower motor venturi ring is prop- erly indexed and installed. (c) If the unit is equipped with air conditioning, that the evaporator coil tube rubber seal is prop- secure the upper and lower heater-A/C housing (3) Install the blower motor and wheel unit in the heater-A/C housing. See Blower Motor in this group (4) Install the foam seals on the flanges around the blower motor opening and the heater core and (5) Insert the vacuum supply line and connector through the foam seal on the heater core and evapo- (6) If the unit is equipped with air conditioning, reinstall the evaporator coil tube clamp. Tighten the (7) Engage the heater-A/C wire harness connector and blower motor relay wire harness connector (8) Engage the vacuum harness to the routing clips and plug in the vacuum harness connector at (9) Install the heater-A/C housing in the vehicle. INSTALLATION (1) Position the heater-A/C housing to the dash panel. Be certain that the evaporator condensate (2) Install and tighten the five nuts onto the heat- er-A/C housing mounting studs on the engine com- (3) If the evaporation canister was repositioned during the removal procedure, reinstall it to its (4) Connect the heater-A/C system vacuum supply line connector to the tee fitting near the heater core (5) Unplug or remove the tape from the heater core tubes. Connect the heater hoses to the heater Fig. 41 Heater-A/C Housing Disassembly 1 – SEALS Fig. 42 Heater-A/C Housing Assembly 1 – BLOWER MOTOR VENTURI RING 24 - 38 HEATING AND AIR CONDITIONING XJ REMOVAL AND INSTALLATION (Continued) |