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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 906 (Engine Mechanical - 4.3L (LU3)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Engine Front Cover Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. 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 in Cautions and Notices.
  2. Install the engine front cover bolts.

    Tighten 

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

    Fig 1: Installing Engine Front Cover
    G01977558Courtesy 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.
  5. Install the CKP sensor. Refer to CRANKSHAFT POSITION SENSOR in Removal and Installation in Engine Performance.
  6. Install the water pump. Refer to WATER PUMP REPLACEMENT (4.3L) in Engine Cooling.
    Fig 2: Installing CKP Seal
    G01977559Courtesy of GENERAL MOTORS CORP.
  7. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement   .
  8. Install the engine oil pan. Refer to Oil Pan Replacement   .