Engine Block Plug Installation

1998 Chevrolet Lumina V6-3.8L VIN KSECTION Engine Block Plug Installation





1. Install the threaded oil jacket plugs.
^ Tighten the oil jacket plugs to 30 Nm (22 ft. lbs.).

NOTICE: Refer to Fastener Notice in Service Precautions.





2. Install the remaining oil gallery plugs using GM P/N 12345493 threadlocker or equivalent.

RENDER: 1.0x

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.