Installation Procedure

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Fig 1: Locating 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: View Of Coolant Heater Cord

Courtesy of GENERAL MOTORS CORP.

Connect the coolant heater cord electrical connector.

Fig 3: Locating Oil Cooler Hose Bracket & Adapter Bolts

Courtesy of GENERAL MOTORS CORP.

For vehicles with RPO L76 (6.0L) perform the following steps otherwise proceed to step 9.
Position the oil cooler hose adapter end, if equipped.
Install a NEW oil cooler hose adapter gasket, if equipped.
Install the oil cooler hose adapter bolts (2), if equipped.
Tighten: Tighten the bolts to 12 N.m (106 lb in).
Install the oil cooler hose bracket bolt (1), if equipped.
Tighten: Tighten the bolt to 25 N.m (18 lb ft).

Fig 4: View Of Oil Pan Skid Plate & Bolts

Courtesy of GENERAL MOTORS CORP.

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