GM Service Manual Online
For 1990-2009 cars only

Tools Required

EN 46328 Camshaft Holding Tool


    Object Number: 928316  Size: SH
  1. Remove the EN 46328 from the right camshafts.

  2. Object Number: 928275  Size: SH
  3. Place a small amount of sealant GM P/N 12378521 (Canadian P/N 88901148) or equivalent at the split line of the right cylinder head and the right camshaft position actuator housings.

  4. Object Number: 928273  Size: SH

    Important: Be careful to prevent the exposed section of the camshaft cover seal from being damaged by the edge of the cylinder head casting.

  5. Install the right camshaft cover.
  6. Install the NEW camshaft cover bolt grommets prior to installing the camshaft cover bolts.
  7. Notice: Refer to Fastener Notice in the Preface section.

  8. Install the right camshaft cover bolts.
  9. Tighten
    Tighten the right camshaft cover bolts to 10 N·m (89 lb in).


    Object Number: 928269  Size: SH
  10. Install the bolts connecting the right camshaft cover ground strap to the right cylinder head and the right camshaft cover.
  11. Tighten

        • Tighten the right ground strap bolt into the camshaft cover to 10 N·m (89 lb in).
        • Tighten the right ground strap bolt into the cylinder head to 25 N·m (18 lb ft).