Removal Procedure
- Drain the engine coolant. Refer to
Cooling System Draining and Filling
in Engine Cooling.
- Remove the exhaust system as necessary. Refer to the appropriate
procedure in Engine Exhaust.
- Remove the heat shields from the vehicle. Refer to
Exhaust Heat Shield Replacement - Frame
in Engine Exhaust.
- Remove the heater hose
connections from the front inlet and outlet pipe.
- Remove the heater hose connections from the rear heater pipes.
- Remove the retainers from the vehicle body.
- Remove the intermediate heater pipe from the vehicle.
Installation Procedure
- Install the intermediate
heater pipe to the vehicle.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the retainers
to the vehicle body.
Tighten
Tighten the retainers to 5 N·m (44 lb in).
- Connect the heater hose connections to the rear heater pipes.
- Connect the heater hose connections to the front inlet and outlet
pipe.
- Install the heat shields to the vehicle. Refer to
Exhaust Heat Shield Replacement - Frame
in Engine Exhaust.
- Install the exhaust system as necessary. Refer to the appropriate
procedure in Engine Exhaust.
- Fill the engine coolant. Refer to
Cooling System Draining and Filling
in Engine Cooling.