GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 CTS 🢒 Engine 🢒 Engine Mechanical - 2.6L and 3.2L 🢒 Intake Manifold Disassemble

    Object Number: 815399 Size: SH
  1. Remove the wiring harness and the connectors from the fuel injectors.

    2. Object Number: 815398 Size: SH
  2. Remove the fuel rail attaching bolt near the fuel supply-return lines.

    3. Object Number: 815401 Size: SH
  3. Remove the fuel rail attaching bolts from the intake manifold.

    4. Object Number: 815402 Size: SH
  4. Remove the fuel rail and fuel injectors.

    5. Object Number: 815403 Size: SH
  5. Remove and discard the O-rings from the fuel injectors.