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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 134 (Engine Heating And Cooling - Repair Instructions (2 Of 2)) >> Repair Instructions >> Thermostat Bypass Pipe Replacement (L3B RWD) >> Installation Procedure

Installation Procedure

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.
  1. GM5399325

    Thermostat Bypass Pipe (3) - Install

  2. Thermostat Bypass Hose (2) @ Engine Coolant Flow Control Valve - Install
  3. Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  4. GM5399315

    Engine Oil Cooler Coolant Outlet Hose (2) @ Thermostat Bypass Pipe - Install

  5. Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  6. GM5399284

    Thermostat Bypass Pipe (2) @ Water Pump - Install

  7. Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  8. Raise and support the vehicle. Lifting and Jacking the Vehicle
  9. GM5399292
    CAUTION:

    Refer to Fastener Caution .

    Thermostat Bypass Pipe Bolt (1) - Install and tighten - Fastener Specifications

  10. GM5420502

    Front Compartment Air Deflector (2) - Install

  11. Front Compartment Air Deflector Bolt (1) - Install and tighten [4x] - Fastener Specifications
  12. GM5396496

    Front Wheelhouse Liner Bolt (3) - Install and tighten - Fastener Specifications

  13. Engine Front Splash Shield Retainer (2) - Install [2x]
  14. Engine Front Splash Shield Bolt (1) - Install and tighten - Fastener Specifications
  15. GM5396453

    Front Wheelhouse Liner Bolt (1) - Install and tighten - Fastener Specifications

  16. Engine Front Splash Shield Retainer (2) - Install [2x]
  17. Engine Front Splash Shield Bolt (3) - Install and tighten - Fastener Specifications
  18. GM5396438

    Front Bumper Fascia Center Air Deflector Retainer (2) - Install [2x]

  19. Front Bumper Fascia Center Air Deflector Bolt (1) - Install and tighten [5x] - Fastener Specifications
  20. Lower the vehicle.
  21. Fill the cooling system. Refer to Cooling System Draining and Filling (L3B Static Fill) , or Cooling System Draining and Filling (L3B GE 47716)
  22. Start the engine and check for coolant leaks.
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