GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2004 🢒 Optra 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Suction Hose Replacement

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1308342 Size: SH
  1. Disconnect the negative battery cable.
  2. Discharge and recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Remove the air cleaner housing bolts and the air filter housing assembly.
  4. Disconnect the electrical connector at the pressure transducer.
  5. Remove the suction block retaining nuts at the fire wall.
  6. Cap the openings to the expansion valve to prevent contamination.

    7. Object Number: 1308343 Size: SH
  7. Remove the suction hose support clamp bolts.

    8. Object Number: 1308335 Size: SH
  8. Remove the retaining nut from the hose connecting block and disconnect the air conditioning hose assembly connector block from the compressor.
  9. Remove the A/C suction hose assembly.
  10. Cap the openings to the compressor to prevent contamination.

Installation Procedure

    Object Number: 1308335 Size: SH
  1. Position the A/C suction hose into the vehicle.

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

  2. Insert the suction hose block-to-compressor to the compressor.

    3. Tighten
    Tighten the retaining nut at the suction hose block to 33 N·m (24 lb ft).


    Object Number: 1308344 Size: SH
  3. Install the suction hose support clamp-to-longitudinal member.

    4. Tighten
    Tighten the suction hose support clamp-to-longitudinal member bolt to 8 N·m (71 lb in).


    Object Number: 1308346 Size: SH
  4. Install the suction hose support clamp-to-engine bracket.

    5. Tighten

        • For the 1.4 DOHC and the 1.6 DOHC, tighten the suction hose support clamp-to-engine bracket bolt to 4 N·m (35 lb in).
        • For the 1.8 DOHC and the 2.0 DOHC, tighten the suction hose support clamp-to-engine bracket bolt to 14 N·m (10 lb ft).

    Object Number: 1308342 Size: SH
  5. Install the suction hose block-to-expansion valve retaining nut at the fire wall.

    6. Tighten
    Tighten the suction hose block-to-expansion valve retaining nut to 14 N·m (10 lb ft).

  6. Connect the electrical connector at the pressure transducer.
  7. Install the air cleaner housing bolts and the air filter housing assembly.
  8. Connect the negative battery cable.
  9. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .