GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 CTS - RHD 🢒 Engine 🢒 Engine Mechanical - 2.6L and 3.2L 🢒 Upper Intake Manifold Cover Replacement - Rear

Removal Procedure
  1. Loosen the fuel filler cap in order to relieve the system pressure.

    2. Object Number: 785822 Size: SH
  2. Disconnect the electrical connector (2) from the coil pack (1).
  3. Disconnect the EVAP quick connect fitting. Refer to Plastic Collar Quick Connect Fitting Service .

    4. Object Number: 785788 Size: SH
  4. Remove the heated oxygen sensor connector (1) from the bracket (3).

    5. Object Number: 794128 Size: SH
  5. Disconnect the crankcase ventilation dirty air hose retainer (2) from the fuel pipe.

    6. Object Number: 821095 Size: SH
  6. Remove the bolt (6) securing the following to the crankcase vent housing (4):
    7. • The heated oxygen sensor connector bracket (5)
    • The EVAP canister purge valve bracket (1)
  7. Position the EVAP canister purge valve assembly rearward, away from the engine.

    8. Object Number: 918942 Size: SH
  8. Remove the rear cover (1) from the engine.

Installation Procedure

    Object Number: 918942 Size: SH
  1. Slide the rear cover (1) into position, aligning the following:
    2. • The notch at the bottom of the cover (1) with the water crossover pipe plug (2).
    • The notch at the bottom of the cover (1) with the water crossover fitting (3).
    • The alignment hole (5) in the cover (1) with the fuel pressure regulator clamp bolt (4).

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 821095 Size: SH
  2. Install the bolt (6) securing the following to the crankcase vent housing (4):
    3. • The heated oxygen sensor connector bracket (5)
    • The EVAP canister purge valve bracket (1)

    Tighten
    Tighten the EVAP canister purge valve bracket bolt to 8 N·m (71 lb in).


    Object Number: 794128 Size: SH
  3. Connect the crankcase ventilation dirty air hose retainer (2) to the fuel pipe.

    4. Object Number: 785788 Size: SH
  4. Install the heated oxygen sensor connector (1) to the bracket (3).
  5. Connect the EVAP quick connect fitting. Refer to Plastic Collar Quick Connect Fitting Service .

    6. Object Number: 785822 Size: SH
  6. Connect the electrical connector (2) to the coil pack (1).
  7. Tighten the fuel filler cap.