Express 3/4 Ton Van V8-4.8L VIN V (2003)
Heater Core: Service and Repair
Heater Core Replacement
Heater Core Replacement
Tools Required
J 38185 Hose Clamp Pliers
Removal Procedure
1. Drain the engine coolant. See: Service and Repair
2. Remove the A/C accumulator. See: Heating and Air Conditioning/Accumulator HVAC/Service and Repair
3. Remove the engine cover. See: Engine/Service and Repair/Removal and Replacement
4. Remove the right knee bolster bracket. See: Body and Frame/Interior Moulding / Trim/Dashboard / Instrument Panel/Service and Repair
5. Remove the cowl drain tube bolts.
6. Remove the cowl drain tube.
7. Remove the hose clamps using the J 38185.
8. Remove the inlet and outlet heater hoses from the heater core.
9. Remove right hinge pillar trim. See: Body and Frame/Interior Moulding / Trim/Trim Panel/Service and Repair
10. Remove the ground lead at the right hinge pillar.
11. Remove the harness connector and bracket in the right hinge pillar.
12. Disconnect the radio antenna lead-in cable at the right hinge pillar.
13. Remove the heater outlet duct at the left side of the heater case.
14. Reposition the wire harness at the hinge pillar and at the heater case.
15. Remove the screws from the heater assembly.
16. CAREFULLY open the heater core access door in order to cut the heater core access door.
17. Cut the marked section of the heater core access door and remove the access door.
18. Remove the retainers from the heater core.
