GM Service Manual Online
For 1990-2009 cars only

Important: The intake manifold, throttle body, fuel injection rail, and fuel injectors may be removed as an assembly. If not servicing the individual components, remove the manifold as a complete assembly.

DO NOT reuse the intake manifold-to-cylinder head gaskets.


    Object Number: 58838  Size: SH
  1. Remove the Manifold Absolute Pressure (MAP) sensor (if required).
  2. Remove the vapor vent pipe clamp and hose from the throttle body.

  3. Object Number: 260133  Size: MH
  4. Note the location of the fuel rail ground strap (1) on the intake manifold.
  5. The fuel rail ground strap must be installed during assembly.


    Object Number: 65170  Size: SH

    Caution: The fuel rail stop bracket must be installed onto the engine assembly. The stop bracket serves as a protective shield for the fuel rail in the event of a vehicle frontal crash. If the fuel rail stop bracket is not installed and the vehicle is involved in a frontal crash, fuel could be sprayed possibly causing a fire and personal injury from burns.

  6. Remove the intake manifold bolts and fuel rail stop bracket.
  7. Remove the intake manifold and gaskets.
  8. Remove the manifold-to-cylinder head gaskets from the intake manifold.
  9. Discard the intake manifold gaskets.