Heater Core: Service and Repair

Heater Module - Disassembled View (1 Of 2):

Remove or Disconnect

1. Negative battery cable.
2. Drain cooling system.
3. Raise vehicle.
4. Heater hoses from heater core.
5. Lower vehicle.
6. I/P.
7. Heater core outlet.
8. Heater core cover.
^ There is a mounting screw located in a recess in the center of the cover
9. Heater core mounting clamps and heater core.

Install or Connect

1. Heater core and heater core mounting clamps.
2. Heater core cover.
3. Heater core outlet.
4. I/P.
5. Raise vehicle.
6. Heater hoses to heater core.
7. Lower vehicle.
8. Fill cooling system and check for leaks.
9. Negative battery cable.

Image Key

1 VALVE HOUSING COVER

2 HEATER/BLOWER MODULE BOLT

3 DEFROSTER VALVE

4 MODE VALVE

5 HEATER-VACUUM TANK

6 HEATER MODULE MOUNTING BRACKET

7 HEATER-CONTROL

8 HEATER VALVE LEVER LINK

9 DEFROSTER VALVE ACTUATOR

10 HEATER CASE

11 HEATER VALVE

12 MODE VALVE ACTUATOR

13 TEMPERATURE VALVE CLIP

14 TEMPERATURE VALVE

15 HEATER CORE SHROUD

16 HEATER CORE

17 HEATER CORE STRAP

18 HEATER COVER

19 HEATER OUTLET

20 HEATER CORE SHROUD SEAL

21 HEATER CORE TUBE AND MOUNT SEAL

22 HEATER CORE SEAL

23 HEATER AND A/C CONTROL SWITCH HARNESS

24 DEFROSTER DUCT

25 BLOWER MOTOR BOLTS

26 BLOWER MOTOR ISOLATOR

27 BLOWER MOTOR

28 BLOWER FAN

29 BLOWER RESISTOR

30 HEATER CASE SEAL

31 BLOWER AND AIR INLET CASE

32 MOUNTING SEAL

33 AIR INLET HOUSING

34 VACUUM HARNESS