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 replacing the
engine front cover, install the camshaft position sensor to the engine front
cover.
Tighten
Tighten the camshaft position sensor bolts to 10 N·m (89 lb in).
- If replacing the engine
front cover, install the oil pump cover and gear set to the engine front cover.
Refer to
Oil Pump Cover and Gear Set Replacement
.
- If replacing the engine
front cover, install the water pump.
- Install the water pump bolts.
Tighten
Tighten the water pump bolts in the following sequence:
• | Tighten the long water pump bolts to 20 N·m (15 lb ft). |
• | Tighten the short water pump bolts to 15 N·m (11 lb ft). |
- If replacing the engine
front cover, install the pressure relief valve, the oil filter adapter and
the oil filter adapter bolts to the engine front cover.
Tighten
Tighten the bolts to 30 N·m (22 lb ft).
- Install the new engine
front cover gasket. Ensure that the sealing surfaces are not damaged.
- Apply sealer GM P/N 12346004 (Canadian P/N 10953480)
or equivalent to the bolt threads.
- Align the cogs on the
crankshaft sprocket with the cogs on the oil pump gear set in the engine front
cover.
- Install the engine front cover to the engine.
- Install the engine front cover bolts (1-7).
Tighten
Tighten the bolts to 34 N·m (25 lb ft).
- Install the crankshaft
position sensor.
Tighten
Tighten the crankshaft position sensor studs to 30 N·m
(22 lb ft).
- Install the new engine front cover seal using J 35354
.
- Tighten the bolt until the crankshaft front oil seal is seated
in the engine front cover.
- Remove the J 35354
.
- Install the oil pan-to-engine front cover bolts.
Tighten
Tighten the oil pan bolts to 14 N·m (125 lb in).
- Install the oil level sensor.
Tighten
Tighten the sensor to 20 N·m (15 lb ft).
- Connect the oil level sensor electrical connector.
- Install the engine mount bracket. Refer to
Engine Mount and Bracket Replacement
.
- Install the water pump pulley and bolts.
Tighten
Tighten the bolts to 13 N·m (116 lb in).
- Install the radiator outlet hose to the water pump. Refer to
Radiator Outlet Hose Replacement
in Engine Cooling.
- Install the oil filter.
Install the engine oil pan drain plug. Refer to
Engine Oil and Oil Filter Replacement
.
- Install the crankshaft
position sensor shield.
- Connect the electrical connectors to the following:
• | Crankshaft position (CKP) sensor |
• | Camshaft position (CMP) sensor |
- Install the crankshaft balancer. Refer to
Crankshaft Balancer Replacement
.
- Lower the vehicle.
- Remove the engine support fixture.
- Install the drive belt tensioner. Refer to
Drive Belt Tensioner Replacement
.
- Fill the cooling system. Refer to
Cooling System Draining and Filling
in Engine Cooling.
- Fill the crankcase with engine oil. Refer to
Engine Oil and Oil Filter Replacement
.
- Connect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.
- Inspect for leaks.
- Perform the CKP system variation learn procedure. Refer to
Crankshaft Position System Variation Learn
in Engine
Controls - 3.8L.