GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 42038 Camshaft Holding Fixture


    Object Number: 483170  Size: SH
  1. Remove the camshaft cover bolts.
  2. Remove and discard the camshaft cover grommets and camshaft cover bolts if they are serviced with the grommet.
  3. Lift the camshaft cover off the cylinder head evenly.

  4. Object Number: 287745  Size: SH

    Caution: The camshaft holding tools must be installed on the camshafts to prevent camshaft rotation. When performing service to the valve train and/or timing components, valve spring pressure can cause the camshafts to rotate unexpectedly and can cause personal injury.

  5. Install the J 42038 onto the ends of the camshaft. Rotate the engine to align the camshafts with the tool using the hex in the camshaft and an open end wrench.

  6. Object Number: 264870  Size: SH
  7. 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.