2023-01-20

4 Way Coolant Valve - Series/Parallel (Remove and Replace)

Correction Code 18306502

Removal

  1. Open the LH front door and lower the window.
  2. Remove the HEPA filter. See Filter - HEPA (Remove and Replace).
  3. Remove the battery cage assembly. See Cage - Battery - Auxiliary - 12V (Remove and Replace).
  4. Remove the clips (x2) that attach the coolant hose to the support beam.
  5. Remove the clip that attaches the cooling fan harness to the support beam.
  6. Remove the bolts (x2) that attach the cooling fan shroud to the support beam (torque 12 Nm).
  7. Remove the bolts (x2) that attach the support beam to the body (torque 9 Nm).
  8. Remove the bolts (x4) that secure the 3-way and 4-way valves to the plastic support beam (torque 5 Nm).
  9. Remove the plastic support beam from the vehicle.
  10. Pinch clamps (x5) to the 3-way and 4-way valve coolant hoses.
  11. Remove the upper and RH coolant hoses from the 3-way valve.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use rags to keep the working area clean.
  12. Remove the upper coolant hose from the 4-way valve.
    Informational PurposesAn informational icon, calling your attention
    Note
    Use rags to keep the working area clean.
  13. Remove the LH coolant hose from the 4-way valve.
  14. Remove the lower coolant hose from the 4-way valve.
  15. Remove the clip that attaches the cowl drain hose to the 4-way valve.
  16. Disconnect the electrical connectors from the 3-way and 4-way valve, and then remove the clips (x2) that attach the 3-way and 4-way valve harness to the 3-way and 4-way valve.
  17. Remove the 3-way and 4-way valve from the vehicle.
  18. Separate the 4-way valve from the 3-way valve.

Installation

Installation procedure is the reverse of removal, except for the following:

  1. Refill and bleed the cooling system. See Cooling System - Partial Refill and Bleed.
  2. Use the touchscreen to calibrate the falcon doors.
    Informational PurposesAn informational icon, calling your attention
    Note
    Falcon door calibration is required after each 12V and first responder loop disconnection.