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Home >> Cadillac >> 2004 >> CTS Base, 3.6 7 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Mechanical - 3.2L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Intake Manifold Cover Replacement - Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure .
  2. Refer to Quick Connect Fitting(s) Service (Metal Collar) in order to disconnect the following quick connect fittings from the fuel rail.
    • The return hose/pipe (1)
    • The feed hose/pipe (2)

      Plug the open outlets to prevent fluid loss and contamination.

      Fig 1: Locating Fuel Rail Quick Connect Fittings
      GM785815Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the evaporative emission (EVAP) quick connect fitting (3). Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  4. Open the retainer (4) located at the engine control module (ECM) bracket in order to remove the chassis hose/pipes.
  5. Disconnect the 2 cable harness clips (1) securing the engine wiring harness (4) to the ECM bracket (2).
    Fig 2: Identifying ECM Bracket Retaining Bolts & Wiring Harness Clips
    GM785768Courtesy of GENERAL MOTORS CORP.
  6. Remove the 2 bolts (3) securing the afterboil coolant pump to the ECM bracket, and position aside.
    NOTE: Always turn the ignition off when installing or removing the ECM connectors in order to prevent damage to the components.
    IMPORTANT: Ensure the ignition is in the OFF position.
  7. Remove the screw (2) securing the ECM ground wire (1) to the ECM (3).
    Fig 3: Locating Engine Ground Wire Screw
    GM785849Courtesy of GENERAL MOTORS CORP.
    NOTE: In order to prevent any possible electrostatic discharge damage to the ECM, do not touch the connector pins.
  8. Flip the release levers to the open position (3) and disconnect the ECM connectors (2) from the ECM (5).
    Fig 4: Exploded View Of ECM Connectors
    GM785823Courtesy of GENERAL MOTORS CORP.
  9. Remove the bolt securing the coolant inlet pipe to the ECM bracket.
  10. Remove the ECM bracket bolts from the following:
    • The intake plenum
    • The cylinder head
    Fig 5: Expanded View Of ECM Bracket Bolts
    GM785761Courtesy of GENERAL MOTORS CORP.
  11. Remove the ECM bracket from the engine with the ECM still attached, and position aside.
  12. Remove the right cover (1) from the cam cover (6).
    13. Fig 6: Identifying Right Cover & Cam Cover
    GM918941Courtesy of GENERAL MOTORS CORP.
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