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Home >> Chevrolet >> 2004 >> Optra Base, Standard >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC Systems >> Repair Instructions >> Air Conditioning Compressor Replacement >> Installation Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Installation Procedure

    Fig 1: View Of Compressor And Bolts
    GM1308350Courtesy of GENERAL MOTORS CORP.
  1. Add oil to the new compressor. Use the exact amount of oil that you drained from the old compressor.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the compressor.
  3. Install the compressor-to-bracket mounting bolts.

    Tighten: 

    • For the 1.4 DOHC and the 1.6 DOHC engines, tighten the upper compressor-to-bracket mounting bolts (M8) to 25 N.m(18 lb ft)  .
    • Tighten the lower compressor-to-bracket mounting bolts (M10) to 45 N.m (33 lb ft)  .

    4. Fig 2: View Of Compressor And Bracket Mounting Bolts
    GM1308351Courtesy of GENERAL MOTORS CORP.
  4. Install the front and rear compressor-to-bracket mounting bolts.

    Tighten: 

    • For the 1.8 DOHC and 2.0 DOHC, tighten the front compressor-to-bracket mounting bolts to 35 N.m (26 lb ft)  .
    • For the 1.8 DOHC and 2.0 DOHC, tighten the rear compressor-to-bracket mounting bolts to 20 N.m (15 lb ft)  .

    5. Fig 3: View Of Serpentine Accessory Drive Belt Tensioner
    GM1241549Courtesy of GENERAL MOTORS CORP.
  5. Install new sealing washers to the suction hose and the discharge hose mounting.
  6. Connect the electrical connector at the compressor.
  7. Install the accessory drive belt.
  8. Install the engine under cover. Refer to Engine Cover Replacement .
  9. Lower the vehicle.
    10. Fig 4: View Of Discharge Hose, Block And Nut
    GM1308335Courtesy of GENERAL MOTORS CORP.
  10. Place the suction hose into its cavity in the compressor and install the discharge hose mounting block to clamp it into place. Hold this all together while tightening the retaining nut.

    Tighten:  Tighten the refrigerant discharge hose block-to-compressor retaining nut to 33 N.m (24 lb ft)  .

  11. Connect the negative battery cable.
  12. Evaluate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
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