GM Service Manual Online
For 1990-2009 cars only

    Object Number: 639608  Size: SH
  1. Remove the engine coolant air bleed pipe studs (1).
  2. Remove the pipe (2) and gaskets (3).

  3. Object Number: 639609  Size: SH
  4. Remove the engine coolant air bleed pipe hole cover bolts (1) and covers (2).

  5. Object Number: 64262  Size: SH
  6. Remove the gaskets from the pipe and covers.
  7. Discard the gaskets.

  8. Object Number: 639610  Size: SH
  9. Remove the hose (2) from the pipe (1).