Installation Procedure
WARNING: This page is about a different variant/trim than selected.
- Install the engine oil cooler inlet/outlet O-ring seals.
- Apply a 2 mm (0.08 in) bead of GM P/N 12378521(Canadian P/N 88901148), or equivalent, in the groove around the engine oil cooler cover.
- Position the engine oil cooler to the engine.
- Apply thread adhesive GM P/N 12345382 (Canadian P/N 109534382) to the engine oil cooler cover bolts.
- Install the engine oil cooler cover bolts (2).
Tighten: Tighten the engine oil cooler cover bolts in sequence to 20 N.m (15 lb ft).
- Install the engine oil cooler inlet and outlet nuts (1).
Tighten: Tighten the engine oil cooler inlet and outlet nuts to 30 N.m (22 lb ft).
- Position the oil cooler line fittings to the oil cooler.
- Install the oil cooler inlet and outlet fittings to the engine oil cooler.
Use 4 new seals.
Tighten:
- Tighten the oil cooler inlet fitting to 30 N.m (22 lb ft).
- Tighten the oil cooler outlet fitting to 30 N.m (22 lb ft).
- Install the oil cooler lines to the engine. Refer to Oil Cooler Line Replacement .
- Install the water crossover. Refer to Coolant Crossover Pipe Replacement (LA3, LY9) in Engine Cooling.
- Install the intake manifold. Refer to Intake Manifold Replacement .
NOTE:
Refer to Component Fastener Tightening Notice
in Cautions and Notices.