GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 2017012  Size: SH
  1. Remove the oil filler cap from the cylinder head cover.
  2. If necessary, remove the oil filler cap gasket (1) from the oil filler cap.

  3. Object Number: 2017775  Size: SH
  4. If necessary , using a 22 mm deep socket wrench, remove the ventilation valve (1) from the cylinder head cover.
  5. Remove the retaining bolt from each of the ignition coils and remove the coils.
  6. Remove spark plugs.

  7. Object Number: 2017780  Size: SH
  8. Remove the 8 bolts (1,2,3,4,6,7,8,10) and 2 nuts (25) , and remove the cylinder head cover.

  9. Object Number: 2017781  Size: SH
  10. Remove cylinder head cover gasket from the cylinder head cover.