2002 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE

Engine Front Cover - Installation

Tools Required 

J 36660-A  Torque Angle Meter

  1. Install the engine front cover gasket.
    Fig 1: Engine Front Cover Gasket
    G01807754Courtesy of GENERAL MOTORS CORP.
  2. Install the engine front cover. Align the cogs on the crankshaft sprocket with the cogs on the oil pump in the engine front cover.
  3. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480 or the equivalent to the engine front cover bolt threads.
  4. Install the engine front cover bolts. Tighten the engine front cover bolts to 20 N.m (15 ft lbs). Use the J 36660-A  to tighten the engine front cover bolts an additional 40 degrees.
  5. Install the oil pan to engine front cover bolts. Tighten the oil pan bolts to 14 N.m (125 in lbs).
    Fig 2: Engine Front Cover
    G01807755Courtesy of GENERAL MOTORS CORP.
  6. Install the oil filter. Tighten the oil filter to 30 N.m (22 ft lbs).
  7. Install the crankshaft position sensor. Tighten the crankshaft position sensor studs to 30 N.m (22 ft lbs).
    Fig 3: Crankshaft Position Sensor
    G01807756Courtesy of GENERAL MOTORS CORP.
  8. Install the crankshaft position sensor shield.
    Fig 4: Crankshaft Position Sensor Shield
    G01807757Courtesy of GENERAL MOTORS CORP.
Factory Service Tools

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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.

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