GM Service Manual Online
For 1990-2009 cars only

    Object Number: 859857  Size: SH

    Notice: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire or the wire could be damaged.

  1. Remove the spark plug wires from the spark plugs.
  2. 1.1. Rotate the spark plug wire boot one half turn.
    1.2. Pull outward on the spark plug wire boot to release from the spark plug.
  3. Remove the spark plug wires from the spark plug wire retainers.
  4. Remove the exhaust manifold bolts and the stud.
  5. Remove the spark plug wire shields, if applicable, and the exhaust manifold.

  6. Object Number: 328540  Size: SH
  7. Remove and discard the exhaust manifold gaskets.