Removal Procedure
- Drain the engine coolant. Refer to Cooling System Draining and Filling .
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
- Remove the lower radiator air deflector. Refer to Front Air Deflector Replacement in Body Front End.
- Disconnect the coolant heater cord (2) from the coolant heater (1).
- Loosen the bolt at the coolant heater, but do not remove.
- Remove the coolant heater.
- Remove and clean any burrs, compound, paint, or rough spots from the core plug hole.
Installation Procedure
- Apply a coat of Permatex® Thread Sealant with Teflon to the O-ring.
- Install the coolant heater by pushing tight to the block.
- Install the coolant heater so the element (1) is positioned at approximately the 3 o`clock position.
- Tighten the bolt until both locking wings draw tight against the inner wall of the engine block.
- Install the coolant heater cord (2) to the coolant heater.
- Fill the cooling system. Refer to Cooling System Draining and Filling .
- Install the lower radiator air deflector. Refer to Front Air Deflector Replacement in Body Front End.
Important: Ensure both locking wings (1) are positioned against the inner wall of the engine block.
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.
Tighten
Tighten the coolant heater bolt to 2 N·m (18 lb in).
