Blower Motor: Service and Repair
REMOVAL1. Drain cooling system and discharge A/C system, if equipped.
2. Disconnect vacuum line at brake booster. If equipped, disconnect vacuum line at water valve.
3. Disconnect heater hoses at heater core. Plug heater core tubes to prevent spilling coolant.
Expansion Valve:
4. On models with A/C, disconnect A/C plumbing at expansion valve and remove the expansion valve from the evaporator.
Resistor Block And Drain Tube:
5. Remove the condensate drain tube.
6. On all models, remove 4 nuts from unit mounting studs.
7. Remove steering column cover from left lower instrument panel.
8. Remove lower reinforcement from below steering column.
9. Remove right side cowl and sill trim.
10. Remove bolt attaching right side instrument panel to right cowl.
11. Loosen two brackets supporting lower edge of instrument panel to A/C and heater or heater housing.
Instrument Panel Assembly:
12. Remove the instrument panel trim moulding from the right side dash panel.
13. Remove the nine screws that attach the lower instrument panel to the upper instrument panel.
14. Carefully pull the right side of lower instrument panel rearward until it reaches passenger seat.
15. Disconnect the blower motor and resistor electrical connectors and temperature control cable.
16. Disconnect hanger strap from evaporator heater assembly and bend rearward.
17. Pull heater-a/c assembly rearward from dash panel and remove from vehicle.
18. Place heater-a/c assembly on workbench, then remove vacuum harness attaching screw. Feed harness through hole in cover.
19. Remove thirteen cover attaching screws, then the cover. Temperature control door will come out with cover.
Fig. 15 Evaporator heater assembly:
20. Remove heater core tube retaining bracket attaching screw, then lift the heater core straight up.
21. Lift evaporator up and out of unit.
22. Remove sound shield attaching screws, then blower motor assembly.
INSTALLATION
Fig. 15 Evaporator heater assembly:
1. Install the blower motor and sound shield.
2. Install the evaporator to the heater-a/c housing.
3. Install the heater core and secure with one screw through the attaching bracket.
4. Install the top cover, making sure the blend-air door is properly located in the bottom of the heater-a/c housing. Secure top cover with 13 screws.
5. Feed the vacuum harness through the hole and secure with one screw.
6. Slide the heater-a/c unit under the lower right instrument panel. Feed the vacuum hoses through the hole in the firewall.
7. Raise and install the heater-a/c unit to the firewall, making sure the mounting studs go completely through and the vacuum hoses are not pinched.
8. Secure the heater-a/c unit with one screws through the hangar strap and four nuts on the mounting studs.
9. Attach the temperature control cable, blower motor wiring, and resistor wiring.
Instrument Panel Assembly:
10. Position the right lower instrument panel and attach with 9 screws through the upper instrument panel and one bolt in the right side cowl.
11. Reinstall instrument panel trim moulding.
12. Reattach all previously removed dash wiring.
13. Install steering column reinforcement, lower steering column cover and right cowl and sill trim panels.
Resistor Block And Drain Tube:
14. Install the condensate drain tube.
15. Connect the vacuum hoses to the engine and water valve.
16. Connect the heater hoses and refill the engine coolent system.
Expansion Valve:
17. Connect the expansion valve to the evaporator with a new gasket. Torque the torx head screws to 100 +/- 30 in.lbs. (11 +/- 3 N-m.).
18. Connect the a/c plumbing to the expansion valve. Torque the bolt to 200 +/- 30 in.lbs. (23 +/- 3 N-m.).
19. Evacuate and recharge the a/c system.
20. Test system for overall performance.