LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2003 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 612 (Engine Cooling System) >> Repair Instructions >> Water Crossover Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Partially drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM  .
  2. Remove the intake manifold. Refer to INTAKE MANIFOLD REPLACEMENT .
  3. Disconnect the electrical connector (3) from the engine coolant temperature (ECT) sensor.
    Fig 1: Disconnecting Engine Coolant Temperature (ECT) Sensor Electrical Connector
    G02086614Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the throttle body heater hose (1) from the fitting.
  5. Remove the following from the cylinder heads with the heater hose (3) still attached:
    • The water crossover fittings (2)
    • The upper and lower seals (1)
    • The water crossover (4)
  6. Disconnect the heater hose (3) from the water crossover (4) if replacement is necessary.
    Fig 2: Removing Water Crossover
    G02086615Courtesy of GENERAL MOTORS CORP.
  7. Remove the following components from the water crossover (1) if replacement is necessary:
    • The water crossover pipe plug (2)
    • The ECT sensor (4) and gasket (5)
    • The throttle body inlet heater hose fitting (3)
      Fig 3: Removing ECT Sensor, Gasket & Throttle Body Inlet Heater Hose Fitting
      G02086616Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals