Coolant Heater Cord Replacement

Coolant Heater Cord Replacement

Removal Procedure




1. If equipped with a 4.2L engine, remove the powertrain control module (PCM). Refer to Powertrain Control Module Replacement.
2. Remove the coolant heater cord from the engine harness bracket (1).
3. Remove the coolant heater cord from the coolant heater (2).




4. If equipped with a 5.3L engine, disconnect the coolant heater cord from the coolant heater (1).
5. Remove the coolant heater cord clip from the engine harness.




6. Disconnect the coolant heater cord retainers (1) from the battery cover.

Installation Procedure




1. Connect the coolant heater cord retainers (1) to the battery cover.




2. If equipped with a 5.3L engine, connect the coolant heater cord to the coolant heater (1).
3. Install the coolant heater cord clip to the engine harness.




4. If equipped with a 4.2L engine, install the coolant heater cord to the coolant heater (2).
5. Install the coolant heater cord to the engine harness bracket (1).
6. Install the PCM.