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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Engine Mechanical - 3.9L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Cylinder Head Replacement - Left Side >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Left Spark Plug/Coil Harness
GM1582091Courtesy of GENERAL MOTORS CORP.
  1. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .
  2. Drain cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM (STATIC FILL) .
  3. Remove the lower intake manifold. Refer to Intake Manifold Replacement - Lower .
  4. Remove exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT - LEFT (3.9L) .
  5. Remove the exhaust crossover pipe. Refer to EXHAUST CROSSOVER PIPE REPLACEMENT (3.9L) .
  6. Remove oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement .
  7. Remove the left spark plugs. Refer to SPARK PLUG REPLACEMENT .
    8. Fig 2: View Of Cylinder Head
    GM52299Courtesy of GENERAL MOTORS CORP.
  8. Remove and discard the cylinder head bolts.
  9. Remove the cylinder head.
    10. Fig 3: View Of Cylinder Head Gasket And Alignment Pins
    GM54362Courtesy of GENERAL MOTORS CORP.
  10. Remove and discard the cylinder head gasket.
  11. Remove the cylinder head dowel pins, if necessary.
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