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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 356 (Engine Mechanical - 3.1L V6 - VIN (J) (On-Vehicle)) >> Repair Instructions >> Cylinder Head Replacement - Left >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install a new left cylinder head gasket.
    Fig 1: Cylinder Head Gasket
    G01763651Courtesy of GENERAL MOTORS CORP.
  2. Install the left cylinder head over the locator pins and over the gasket.
    Fig 2: Left Cylinder Head
    G01763652Courtesy of GENERAL MOTORS CORP.
  3. Install NEW cylinder head bolts.

    Tighten: 

    Tighten the bolts in sequence to 60 N.m (44 ft lbs)  . Using the J 36660-A, rotate the bolts an additional 95 degrees. See Figure.

  4. Install the left exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT - LEFT (3.1L) or in AUTOMATIC TRANSAXLE SERVICING .
  5. Install the left spark plugs. Refer to SPARK PLUGS .
  6. Install the left spark plug wires to the spark plugs. Refer to SPARK PLUG WIRE REPLACEMENT in ENGINE CONTROLS - REMOVAL & INSTALLATION, OVERHAUL .
  7. Install the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement .
  8. Install the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right .
  9. Install the exhaust crossover pipe. Refer to EXHAUST CROSSOVER PIPE REPLACEMENT (3.1L) or in AUTOMATIC TRANSAXLE SERVICING .
  10. Install the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
  11. Install the lower intake manifold. Refer to Intake Manifold Replacement - Lower .
  12. Fill the crankcase with engine oil. Refer to Engine Oil and Oil Filter Replacement .
  13. Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in ENGINE COOLING SYSTEM .
  14. Inspect for leaks.
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