Removal Procedure
- If equipped with a 4.2L engine, remove the powertrain control module (PCM). Refer to
Powertrain Control Module Replacement
.
- Remove the coolant heater cord from the engine harness bracket (1).
- Remove the coolant heater cord from the coolant heater (2).
- If equipped with a 5.3L engine, disconnect the coolant heater cord from the coolant
heater (1).
- Remove the coolant heater cord clip from the engine harness.
- Disconnect the coolant heater cord retainers (1) from the battery cover.
Installation Procedure
- Connect the coolant heater cord retainers (1) to the battery cover.
- If equipped with a 5.3L engine, connect the coolant heater cord to the coolant
heater (1).
- Install the coolant heater cord clip to the engine harness.
- If equipped with a 4.2L engine, install the coolant heater cord to the coolant heater (2).
- Install the coolant heater cord to the engine harness bracket (1).
- Install the PCM. Refer to
Powertrain Control Module Replacement
.