- Install the relief valve O-ring to the engine front cover.
- Lubricate the O-ring with engine oil.
- Apply a 2-3 mm wide and 0.5-1.5 mm high bead of GM P/N 12378521 (Canadian P/N 88901148) sealant to the mating surfaces of the engine front cover.
- Install the engine front cover.
- Install the engine front cover bolts.
- Install a new O-ring to the crankshaft position sensor spacer.
- Lubricate the O-ring with engine oil.
- Install the crankshaft position sensor spacer.
- Install the crankshaft position sensor spacer bolts.
- Install a new O-ring to the crankshaft position sensor.
- Lubricate the O-ring with engine oil.
- Install the crankshaft position sensor.
- Install the crankshaft position sensor bolt.
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.
Tighten
Tighten the engine front cover bolts to 25 N·m (18 lb ft).
Tighten
Tighten the crankshaft position sensor spacer bolts to 10 N·m (89 lb in).
Tighten
Tighten the crankshaft position sensor bolt to 10 N·m (89 lb in).
