Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- If removed, install the ECT sensor.
Tighten
Tighten the ECT sensor to 25 N·m (18 lb ft).
- If removed, install the thermostat, the gasket, and the water outlet housing.
- Install the water outlet housing bolt and the stud.
Tighten
Tighten the bolt and stud to 27 N·m (20 lb ft).
- Install the lower intake manifold gaskets.
- Apply sealer GM P/N 12346286 (Canadian P/N 10953472) or equivalent to the ends of the intake manifold seals.
- Install the lower intake manifold seals.
- Install the lower intake manifold.
- Install the lower intake manifold bolts (1-12). Apply thread lock compound GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the two hidden bolts and ensure they are installed.
Tighten
Tighten the lower intake manifold bolts in sequence to 15 N·m (11 lb ft).
- Install the generator brace bracket.
- Install the generator brace bracket bolts.
Tighten
Tighten the bolts to 50 N·m (37 lb ft).
- Install the right upper engine mount strut bracket. Refer to
Engine Mount Strut Bracket Replacement - Right Upper
.
- Connect the ECT sensor electrical connector.
- Install the radiator inlet hose to the water outlet housing. Refer to
Radiator Inlet Hose Replacement
in Engine Cooling.
- Install the EGR outlet pipe to the lower intake manifold.
- Install the EGR outlet pipe bolt to the lower intake manifold.
Tighten
Tighten the bolt to 29 N·m (21 lb ft).
- Install the drive belt tensioner. Refer to
Drive Belt Tensioner Replacement
.
- Install the generator brace. Refer to
Generator Brace Replacement
in Engine Electrical.
- Install the upper intake manifold. Refer to
Upper Intake Manifold Replacement
.
- Inspect for leaks.