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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 >> Upper Intake Manifold Cover Replacement - Rear >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Loosen the fuel filler cap in order to relieve the system pressure.
  2. Disconnect the electrical connector (2) from the coil pack (1).
    Fig 1: Locating Coil Pack Electrical Connector
    GM785822Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the EVAP quick connect fitting. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  4. Remove the heated oxygen sensor connector (1) from the bracket (3).
    Fig 2: Locating Heated Oxygen Sensor Connector & Bracket
    GM785788Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the crankcase ventilation dirty air hose retainer (2) from the fuel pipe.
    Fig 3: Identifying Crankcase Ventilation Dirty Air Hose Retainer From Fuel Pipe
    GM794128Courtesy of GENERAL MOTORS CORP.
  6. Remove the bolt (6) securing the following to the crankcase vent housing (4):
    • The heated oxygen sensor connector bracket (5)
    • The EVAP canister purge valve bracket (1)
    Fig 4: Identifying Components Connected To Crankcase Vent Housing
    GM821095Courtesy of GENERAL MOTORS CORP.
  7. Position the EVAP canister purge valve assembly rearward, away from the engine.
  8. Remove the rear cover (1) from the engine.
    Fig 5: Identifying Rear Cover
    GM918942Courtesy of GENERAL MOTORS CORP.
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