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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 57 (Engine Heating And Cooling - Repair Instructions (1 Of 2)) >> Repair Instructions >> Cooling System Draining and Filling (LF4 GE 47716) >> Draining Procedure (Engine Radiator)

Draining Procedure (Engine Radiator)

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:

With a pressurized cooling system, the coolant temperature in the radiator can be considerably higher than the boiling point of the solution at atmospheric pressure. Removal of the surge tank cap, while the cooling system is hot and under high pressure, causes the solution to boil instantaneously with explosive force. This will cause the solution to spew out over the engine, the fenders, and the person removing the cap. Serious bodily injury may result.

  1. GM5318373

    Radiator Surge Tank Cap (1) - Remove

  2. Raise and support the vehicle. Lifting and Jacking the Vehicle
  3. GM5873162
    NOTE:

    Left side shown, right side similar.

    Front Bumper Fascia Bolt- Right Side (1) - Remove [6x]

  4. Front Bumper Fascia Lower Stiffener Bolt- Right Side (2) - Remove
  5. Front Bumper Fascia Air Deflector Bolt- Right Side (3) - Remove [4x]
  6. GM5873163
    NOTE:

    Left side shown, right side similar.

    Front Bumper Fascia Air Deflector Bolt- Right Side (1) - Remove [6x]

  7. Front Bumper Fascia Lower Reinforcement- Right Side (2) - Remove
  8. GM5908132

    Place a drain pan under the radiator drain cock. (1)

  9. Radiator Drain Cock (1) - Remove
  10. Inspect the coolant.
  11. If the coolant is discolored, perform the flushing procedure. Flushing 
  12. GM5908132

    Radiator Drain Cock (1) - Install

  13. Remove the drain pan.
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