Removal

REMOVAL

WARNING: Allow the engine cooling system to cool completely before removing radiator cap or draining the engine cooling system. Personal injury may result if the engine cooling system is opened while engine coolant is hot and under pressure.

NOTE: Steel heater lines from engine compartment to the supplemental cabin heater are part of an assembly that includes the air intake pipe. If the cabin heater lines or air intake pipe require removal or replacement the entire cabin heater assembly will require removal or replacement.

1. Drain the engine cooling system.

2. Remove clamps from both the EGR cooler and the lower heater port. Separate hoses from the mating plumbing port (Figure 1).






Figure 1 Cabin Heater Pipes





3. Remove retaining nut from heater line under hood bracket.

4. Raise and support the vehicle. Take note of the location of the flexible of the cabin heater exhaust tube.

5. Remove the clamps from cabin heater lines to the rubber connection nearest the tubes. Separate the hoses from the tube assembly leaving the rubber hose attached to the cabin heater.

6. Remove the cabin heater intake pipe from the heater unit (Figure 2).

7. Remove heater pipe assembly retaining screws and remove assembly from vehicle.






Figure 2 Cabin Heater Air Intake and Heater Pipe - SWB shown, LWB similar