Heating, Ventilation, and Air Conditioning

Refrigerant Line Repair Procedures

13steps
~78min
3/5difficulty
0102030405013.710N·mlb·ft
Tightening torque found on this page
Done 0 of 13

Replacement

  1. If the compressor is operating at its limit, run the engine at idle speed and let the air conditioner operate for several minutes, then turn off the engine.
  2. Disconnect the negative (-) battery terminal.
  3. Recover the refrigerant using a recovery/recharging station.
  4. Remove the engine cover. (Refer to Engine Mechanical System - "Engine Cover")
  5. Loosen the nut and remove the expansion valve cover (A).

    Tightening torque: 8.8–13.7 N·m

  6. Remove the bolts and the expansion valve (A) from the evaporator core.

    Tightening torque: 8.8–13.7 N·m

  7. Remove the 2 nuts, then disconnect the discharge line (B) and the liquid line (A) from the condenser.

    Tightening torque: 8.8–13.7 N·m

  8. Disconnect the air conditioner pressure sensor connector (A).
  9. Remove the engine room cover. (Refer to Engine Mechanical System - "Engine Cover")
  10. Remove the bolts, then disconnect the suction line (A) and the discharge line (B) from the compressor.

    Tightening Torque: 21.6–32 N·m

  11. Loosen the mounting bolt of the bracket (B) on the suction and liquid tube assembly (A).

    Tightening torque: 7.8–11.8 N·m

  12. Remove the suction and liquid tube assembly (A) from the upper part of the engine compartment.
  13. To install, reverse the removal procedure.Specified amount of R-134a: 500 ± 25 g (17.6 ± 0.88 oz) R-1234yf: 450 ± 25 g (15.9 ± 0.88 oz)

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