Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Engine Block Assemble
- Apply sealer GM P/N 12346004, (Canadian P/N 10953480) or the equivalent to the oil pressure switch threads.
- Install the engine oil pressure switch.
Tighten: Tighten the engine oil pressure switch to 16 N.m (12 lb ft).
- Apply sealer GM P/N 12346004, (Canadian P/N 10953480) or the equivalent to the knock sensor threads.
- Install the knock sensor.
Tighten: Tighten the knock sensor to 19 N.m (14 lb ft).
- Apply sealer GM P/N 12346004, (Canadian P/N 10953480) or the equivalent to the front oil gallery plug threads (1 and 2).
- Install the front oil gallery plug (1).
Tighten: Tighten the oil gallery plug (1) to 19 N.m (14 lb ft).
- Install the front oil gallery plug (2).
Tighten: Tighten the oil gallery plug (2) to 33 N.m (24 lb ft).
- Apply sealer GM P/N 12346004, (Canadian P/N 10953480) or the equivalent to the rear oil gallery plug threads (1 and 4).
- Install the rear oil gallery plugs (1 and 4).
Tighten: Tighten the oil gallery plugs (1 and 4) to 19 N.m (14 lb ft).
- Install the rear oil gallery plugs (2 and 3).
Tighten: Tighten the oil gallery plugs (2 and 3) to 33 N.m (24 lb ft).
- Apply sealer GM P/N United States 12346004, GM P/N Canada 10953480 or the equivalent to the engine block plugs.
- Install the remaining engine block plugs.
- Apply sealant GM P/N 12346004, (Canadian P/N 10953480) or the equivalent to the coolant drain plug threads.
- Install the left coolant drain plug.
Tighten: Tighten the coolant drain plug to 19 N.m (14 lb ft).
- Apply sealant GM P/N 12346004, (Canadian P/N 10953480) or the equivalent to the coolant drain plug threads.
- Install the right coolant drain plug.
Tighten: Tighten the coolant drain plug to 19 N.m (14 lb ft).
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.