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Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the right camshaft cover. Refer to Camshaft Cover Replacement - Right .

    Important:  You must install the J 42038  immediately after cam cover removal. The J 42038  prevents unexpected camshaft rotation caused by valve spring pressure.

  2. Install the J 42038  on to the right camshafts. When installed properly the J 42038 will be fully seated on the camshaft ends with the camshaft flats parallel to the cam cover sealing surface.
    3. Fig 1: Identifying J 42038
    G01816875Courtesy of GENERAL MOTORS CORP.
  3. Remove the camshaft position sensor. Refer to CRANKSHAFT POSITION SENSOR in Engine Controls-3.5L.
  4. Remove the camshaft sprocket bolts.
  5. Install the J 42042 on to the right cylinder head.
  6. Evenly slide the secondary drive chain and camshaft sprockets off the camshafts on to the J 42042.
  7. Observe the markings on the bearing caps. Each bearing cap is marked in order to identify its location. The markings have the following meanings:
    • The raised feature must always be oriented toward the outboard of the engine.
    • The "I" indicates the intake camshaft.
    • The "E" indicates the exhaust camshaft.
    • The number indicates the journal position from the front of the engine.
    Fig 2: Identifying Camshaft Markings
    G01816876Courtesy of GENERAL MOTORS CORP.
  8. Remove the camshaft bearing cap retaining bolts.
  9. Remove the camshaft bearing caps. The cap closest to the front of the engine is the thrust cap and must not be installed in another location.
  10. Remove the J 42038  from the right camshafts.
    Fig 3: Removing Camshaft Bearing Caps
    G01816877Courtesy of GENERAL MOTORS CORP.
  11. Lift the camshaft (1 or 2) out of the cylinder head.
  12. Clean and inspect the camshaft. Refer to CAMSHAFT CLEANING AND INSPECTION in Engine Mechanical-3.5L Unit Repair.
  13. Cover the camshaft with an oil soaked towel in order to prevent corrosion.
    Fig 4: Removing Camshafts
    G01816878Courtesy of GENERAL MOTORS CORP.
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