Sierra Classic 2500 4WD V8-6.0L (2007)
Engine Block Heater: Service and Repair
Coolant Heater Cord Replacement (4.8L, 5.3L (Except RPO L33), 6.0L)
Coolant Heater Cord Replacement (4.8L, 5.3L (except RPO L33), 6.0L)
Removal Procedure
1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Disconnect the coolant heater electrical connector (2).
3. Remove the coolant heater cord retainer and bolts.
4. Remove the coolant heater cord.
Installation Procedure
Notice: The heater cord must not touch the engine, hot pipes, manifold, or any moving parts. Route the cord to the left front of the engine
compartment securing with tie straps as necessary to prevent damage.
1. Install the coolant heater cord.
Notice: Refer to Fastener Notice in Service Precautions.
2. Install the coolant heater cord bolts and retainer.
Tighten the bolts to 8 Nm (71 inch lbs.).
