Removal
REMOVAL
NOTE: The air intake tube for the supplemental cabin heater is part of an assembly that includes the heater cooling intake and return pipes. If the cabin heater air intake tube requires removal or replacement the entire cabin heater assembly will require removal or replacement.
1. Drain the engine cooling system.
2. Remove clamps from the cabin heater tubes at the lower heater port and the lower EGR connector which are located under the hood.
3. Remove the retaining clamp at the cabin heater air intake connection.
4. Remove the clamp at the flexible tube to steel tube connection (Figure 1).
Figure 1 Flexible Air Intake Line - SWB shown, LWB similar
5. Remove the two retaining screws and remove pipe assembly (Figure 2).
Figure 2 Cabin Heater Air Intake and Heater Pipe - SWB shown, LWB similar