GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2005 🢒 Isuzu MD F-Series 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Air Conditioning Compressor Hose Replacement

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure
  1. Tilt the cab. Refer to Cab Tilting .
  2. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .

    3. Object Number: 1005116 Size: SH
  3. Remove the compressor hose block fitting washer and bolt (1).
  4. Remove the compressor sealing washers.
  5. Remove the refrigerant hoses from the compressor.
  6. Discard the compressor sealing washers.

    7. Object Number: 1005121 Size: SH
  7. Remove the compressor discharge hose bolt (3) from the condenser.
  8. Disconnect the compressor discharge hose from the condenser.
  9. Discard the O-ring seal.
  10. Remove the compressor suction hose fitting bolt (2).
  11. Disconnect the compressor suction hose from the evaporator outlet hose.
  12. Discard the O-ring seal.
  13. Remove the compressor hose assembly bracket nut (1) from the brackets.

    14. Object Number: 1284883 Size: SH
  14. Remove the compressor hose assembly bracket nuts (1) from the compressor hose assembly bracket.
  15. Remove the compressor hose assembly.

Installation Procedure
  1. Install the compressor hose assembly.
  2. Install the compressor hose assembly to the brackets on the frame rail.

    3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1284883 Size: SH
  3. Install the nuts (1) to the brackets.

    4. Tighten
    Tighten the nuts to 30 N·m (22 lb ft).

  4. Install the bracket nuts (1) and bracket clamps.

    5. Tighten
    Tighten the nuts to 30 N·m (22 lb ft).

  5. Install the new O-ring seals. Refer to O-Ring Replacement .
  6. Connect the compressor hose to the condenser.
  7. Install the compressor discharge hose bolt (3).

    8. Tighten
    Tighten the bolt to 32 N·m (24 lb ft).


    Object Number: 1005121 Size: SH
  8. Connect the compressor suction hose to the evaporator outlet hose.
  9. Install the compressor suction hose bolt (2).

    10. Tighten
    Tighten the bolt to 23 N·m (17 lb ft).

  10. Install the new sealing washers onto the pilots of the fittings. Ensure that the washers bottom against the surface of the fittings. Refer to Sealing Washer Replacement .

    11. Object Number: 1005116 Size: SH
  11. Install the compressor hose assembly to the compressor.
  12. Install the compressor hose assembly bolt (1) to the compressor.

    13. Tighten
    Tighten the bolt to 35 N·m (26 lb ft).

  13. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  14. Leak test the fittings of the repaired or reinstalled components using the J 39400-A .
  15. Lower the cab. Refer to Cab Tilting .