GM Service Manual Online
For 1990-2009 cars only

Special Tools

EN 46101 Spark Plug Tube Seal Guide

For equivalent regional, tools Special Tools.


    Object Number: 1836418  Size: SH
  1. Install the EN 46101 guide onto the spark plug tubes of the cylinder head bank 1.

  2. Object Number: 1836419  Size: SH
  3. Install the NEW camshaft cover bolt grommets prior to installing the camshaft cover bolts.
  4. Wipe the camshaft cover sealing surface on the right cylinder head with a clean, lint-free cloth.

  5. Object Number: 1836422  Size: SH
  6. Place a bead 8 mm (0.3150 in) in diameter by 4 mm (0.1575 in) in height of RTV sealant on the engine front cover split lines (1). Refer to Adhesives, Fluids, Lubricants, and Sealers for the recommended sealant.

  7. Object Number: 2026526  Size: SH
  8. Install the right camshaft cover from the cylinder head bank 1.
  9. Loosely install the 13 camshaft cover bolts bank 1 (1).
  10. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1992550  Size: SH
  11. Tighten the 13 camshaft cover bolts bank 1 in the sequence shown (1-13):
  12. 7.1. Tighten the camshaft cover bolts bank 1 in the first sequence to  10 N·m (89 lb in).
    7.2. Tighten the camshaft cover bolts bank 1 a second pass in sequence to  10 N·m (89 lb in).

    Object Number: 1836434  Size: SH
  13. Remove the EN 46101 guide from the spark plug tubes of the cylinder head bank 1.

  14. Object Number: 1836414  Size: SH
  15. Install the NEW spark plugs into the cylinder head 1 and tighten to  20 N·m (15 lb ft).

  16. Object Number: 2026525  Size: SH
  17. Install the 3 ignition coils (2).
  18. Install the 3 ignition coil bolts (1) and tighten to  10 N·m (89 lb in).