Installation Procedure

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View of Coolant Heater

Courtesy of GENERAL MOTORS CORP.

If reusing the old coolant heater, apply thread sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the threads.

NOTE: Refer to FASTENER NOTICE .

Install the coolant heater to the engine block.
Tighten: Tighten the coolant heater to 50 N.m (37 lb ft).

Fig 2: Identifying Coolant Heater Cord & Electrical Connector

Courtesy of GENERAL MOTORS CORP.

NOTE: 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.

Connect the coolant heater electrical connector (2).

Fig 3: View Of Oil Cooler Hose Bracket Bolt & Adapter Bolts

Courtesy of GENERAL MOTORS CORP.

Position the oil cooler hose adapter end.
Install a NEW oil cooler hose adapter gasket.
Install the oil cooler hose adapter bolts (2).
Tighten: Tighten the oil cooler hose adapter bolts to 12 N.m (106 lb in).
Install the oil cooler hose bracket bolt (1).
Tighten: Tighten the oil cooler hose bracket bolt to 25 N.m (18 lb ft).

Fig 4: Identifying Oil Pan Skid Plate

Courtesy of GENERAL MOTORS CORP.

Install the oil pan skid plate and bolts.
Tighten: Tighten the oil pan skid plate bolts to 20 N.m (15 lb ft).
Lower the vehicle.
Fill the cooling system/engine block. Refer to Draining and Filling Cooling System .