Montana, Silhouette, Venture 2000-2005

Removal & Installation

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CAUTION
Before beginning this procedure, refer to the Precautions at the beginning of this section. Only a MVAC-trained, EPA-certified, automotive technician should service the A/C system or its components.

  1. Recover the refrigerant from the A/C system.
    NOTE
    Cap or tape the open A/C hoses immediately to prevent system contamination.

  2.  
  3. Remove the discharge hose to compressor nut.

    Click image to see an enlarged view

    Fig. Disconnect the discharge hose from the compressor

  4.  
  5. Disconnect the discharge hose from the compressor.
  6.  
  7. Remove and discard the sealing washer.
  8.  
  9. Cap or tape off the discharge hose.

    Click image to see an enlarged view

    Fig. Release the drive belt tensioner. Remove the drive belt from the compressor pulley

  10.  
  11. Release the drive belt tensioner. Remove the drive belt from the compressor pulley.
  12.  
  13. Raise and support the vehicle.
  14.  
  15. Remove the air baffle bolts.
  16.  
  17. Remove the air baffle.

    Click image to see an enlarged view

    Fig. Disconnect the electrical connector from the compressor

  18.  
  19. Disconnect the electrical connector from the compressor.
  20.  
  21. Disconnect the engine harness electrical connector. Reposition the engine harness away from the compressor.
  22.  
  23. Remove the suction hose to compressor nut.
  24.  
  25. Disconnect the suction hose from the compressor.
  26.  
  27. Remove and discard the sealing washer.
  28.  
  29. Cap or tape off the suction hose.

    Click image to see an enlarged view

    Fig. Remove compressor mounting bolts

  30.  
  31. Remove compressor mounting bolts.
  32.  
  33. Lower the vehicle.
  34.  
  35. Remove the battery tray.
  36.  
  37. Remove the lower radiator hose.
  38.  
  39. Disconnect the upper transmission oil cooler hose from the radiator.
  40.  
  41. Remove the compressor.
    NOTE
    Replacement compressors are partially precharged with PAG oil.

  42.  
  43. If replacing the compressor, balance the compressor oil.
  44.  

To install:

  1. Install the compressor.
  2.  
  3. Connect the upper transmission oil cooler hose to the radiator.
  4.  
  5. Install the lower radiator hose.
  6.  
  7. Install the battery tray.
    NOTE
    Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  8.  
  9. Install the compressor mounting bolts, and tighten the bolts to 37 ft. lbs. (50 Nm).
  10.  
  11. Remove cap or tape from the suction hose.
  12.  
  13. Install a new sealing washer to the suction hose.
  14.  
  15. Connect the suction hose to the compressor.
  16.  
  17. Install the suction hose to compressor nut, and tighten the nut to 12 ft. lbs. (16 Nm).
  18.  
  19. Connect the electrical connector to the compressor.
  20.  
  21. Connect the engine harness electrical connector.
  22.  
  23. Install the air baffle.
  24.  
  25. Install the air baffle bolts.
  26.  
  27. Tighten the bolts to 15 ft. lbs. (20 Nm).
  28.  
  29. Lower the vehicle.
  30.  
  31. Release the drive belt tensioner. Install the drive belt on to the compressor pulley.
  32.  
  33. Remove cap or tape from the discharge hose.
  34.  
  35. Install a new sealing washer to the discharge hose.
  36.  
  37. Connect the discharge hose to the compressor.
  38.  
  39. Install the discharge hose to compressor nut, and tighten the nut to 12 ft. lbs. (16 Nm).
  40.  
  41. Evacuate and recharge the A/C system.
  42.  
  43. Leak test the fittings of the component using special tool J39400-A.
  44.  

 
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