Coolant Heater Replacement

Coolant Heater Replacement

Removal Procedure





1. Drain the engine coolant.
2. Raise and support the vehicle. Refer to Vehicle Lifting.
3. Remove the lower radiator air deflector.
4. Disconnect the coolant heater cord (2) from the coolant heater (1).
5. Loosen the bolt at the coolant heater, but do not remove.
6. Remove the coolant heater.
7. Remove and clean any burrs, compound, paint, or rough spots from the core plug hole.

Installation Procedure





1. Apply a coat of Permatex (R) Thread Sealant with Teflon to the O-ring.

Important: Ensure both locking wings (1) are positioned against the inner wall of the engine block.

2. Install the coolant heater by pushing tight to the block.





3. Install the coolant heater so the element (1) is positioned at approximately the 3 o'clock position.

Notice: Refer to Fastener Notice in Service Precautions.

4. Tighten the bolt until both locking wings draw tight against the inner wall of the engine block.
^ Tighten the coolant heater bolt to 2 Nm (18 inch lbs.).
5. Install the coolant heater cord (2) to the coolant heater.
6. Fill the cooling system.
7. Install the lower radiator air deflector.