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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 804 (Engine Mechanical - 4.3L (Unit Repair)) >> Repair Instructions >> Engine Front Cover Installation

Engine Front Cover Installation

WARNING: This page is about a different car, the 2002 GMC Savana and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Important:  Once the composite engine front cover is removed DO NOT reinstall the engine front cover.

Always install a NEW engine front cover.

  1. Install the NEW engine front cover.
    NOTE: Refer to FASTENER NOTICE .
  2. Install the engine front cover bolts.

    Tighten 

    Tighten the bolts to 12 N.m (106 lb in).

    Fig 1: Engine Front Cover & Bolts
    G01689862Courtesy of GENERAL MOTORS CORP.

    Important:  DO NOT reuse the original crankshaft position sensor seal, O- ring. When installing the crankshaft position sensor be sure the crankshaft position sensor is fully seated and held stationary in the engine front cover crankshaft position sensor bore.

    A crankshaft position sensor that is not completely seated will cock in the engine front cover and may result in erratic engine operation.

  3. Lubricate the NEW crankshaft position sensor seal, O-ring, with clean engine oil.
  4. Install the NEW crankshaft position sensor seal, O-ring, onto the crankshaft position sensor.
    Fig 2: Crankshaft Position Sensor Seal
    G01689863Courtesy of GENERAL MOTORS CORP.
  5. Install crankshaft position sensor until fully seated into the engine front cover.
  6. Install crankshaft position sensor bolt.

    Tighten 

    Tighten the crankshaft position sensor bolt to 8 N.m (71 lb in).

    Fig 3: Crankshaft Position Sensor & Bolt
    G01689864Courtesy of GENERAL MOTORS CORP.