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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1497 (Engine Mechanical - 4.2L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Engine Front Cover Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the engine coolant. Refer to DRAINING AND FILLING COOLING SYSTEM (BODY VIN CODE 6)  or DRAINING AND FILLING COOLING SYSTEM (BODY VIN CODE 3)  in Engine Cooling.
  2. Remove the cooling fan and the shroud. Refer to COOLING FAN AND SHROUD REPLACEMENT  in Engine Cooling.
  3. Remove the drivebelt. Refer to DRIVE BELT REPLACEMENT   .
  4. Remove the water pump. Refer to WATER PUMP REPLACEMENT (4.2L ENGINE)  in Engine Cooling.
  5. Remove the crankshaft balancer. Refer to CRANKSHAFT BALANCER REPLACEMENT   .
  6. Remove the power steering pump. Refer to POWER STEERING PUMP REPLACEMENT (4.2L)  in Power Steering.
  7. Raise the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
  8. Remove the oil pan. Refer to OIL PAN REPLACEMENT   .
  9. Lower the vehicle.
  10. Remove the 7 mm center bolt (1).
  11. Loosen and remove the remaining engine front cover bolts.
  12. Place two of the front cover bolts in the jack screw holes on the front cover and tighten the bolts evenly to release the front cover from the engine.
    Fig 1: Removing Center Bolt, Engine Front Cover Bolts And Engine Front Cover
    G02128544Courtesy of GENERAL MOTORS CORP.
  13. Remove the two bolts from the front cover.
  14. Remove the oil pump. Refer to Oil Pump Replacement .
  15. Clean and Inspect the front cover. Refer to Engine Front Cover Cleaning and Inspection .
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