GM Service Manual Online
For 1990-2009 cars only

Special Tools

EN 46328 Camshaft Holding Tool

For equivalent regional tools, refer to Special Tools


    Object Number: 928266  Size: SH
  1. Loosen the right camshaft position sensor bolts.
  2. Remove the right camshaft position sensors.

  3. Object Number: 928269  Size: SH
  4. Remove the bolts connecting the right camshaft cover ground strap to the right cylinder head and to the right camshaft cover.
  5. Remove the right camshaft cover ground strap.

  6. Object Number: 928273  Size: SH
  7. Loosen the right camshaft cover bolts.
  8. Remove and discard the camshaft cover grommets and camshaft cover bolts if they are serviced with the grommet.
  9. Remove the right camshaft cover.

  10. Object Number: 928316  Size: SH

    Warning: 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.

  11. Install the EN 46328 tool on the right cylinder head camshafts.