GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 CTS 🢒 Engine 🢒 Engine Electrical 🢒 Valve Rocker Arm Cover Cleaning and Inspection

    Object Number: 309727 Size: SH

    Important: 

       • Do not use the valve rocker arm cover gasket again. Install a NEW gasket during assembly.
       • Remove the ignition coils from the bracket before cleaning the bracket in solvent. Do not submerge the ignition coils in solvent.
       • Do not remove the oil fill tube from the cover unless service is required.
       • If the oil fill tube has been removed from the rocker arm cover, install a NEW tube during assembly.

  1. Remove the ignition coil and bracket assembly and bolts from the rocker cover, if required.

    2. Object Number: 309850 Size: SH
  2. Remove the ignition coils and bolts from the bracket, if required.

    3. Object Number: 260110 Size: SH
  3. Inspect the tube for a loose fit or damage.
  4. Remove the oil fill cap and tube from the right cover, if required.

    5. Object Number: 1272820 Size: SH
  5. Remove the gaskets (504) from the covers.
  6. Remove the cover mounting bolts, with grommets.

    7. Cover mounting bolts and grommets that are not damaged may be used again during assembly.

  7. Clean the covers and coil brackets in solvent.

    8. Object Number: 260085 Size: SH

    Caution: Wear safety glasses in order to avoid eye damage.

  8. Dry the components with compressed air.
  9. Inspect the ventilation system passages for restrictions.
  10. Inspect the gasket grooves for damage.
  11. Inspect the coil bracket threaded bolt holes for damaged threads or debris.

    12. Object Number: 309850 Size: SH
  12. Inspect the coil mounting brackets for cracking, stripped bolt hole threads, or other damage.
  13. Inspect the ignition coils for exterior damage and bent or broken connector pins.