Pump Cover Cup Plug Replacement

1987 Chevrolet Caprice Classic, 4D WagonSECTION Pump Cover Cup Plug Replacement

Remove old cup plugs using care not to damage pump cover. Drive new cup plugs to 1/32" below top of hole, using a 1/4" diameter rod on smaller plug and a 5/16" rod on the 5 larger plugs. Stake top of hole in 2 places, directly opposite each other, to retain plugs.

Fig 1: Pump Body Oil Passages
G96C15851Courtesy of GENERAL MOTORS CORP.
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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.