GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 Savana 🢒 Engine 🢒 Engine Mechanical - 4.3L 🢒 Air Conditioning Compressor Hose Replacement

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the battery negative cable. Refer to Battery Cable Replacement (Battery Disconnect/Connect ) in Engine Electrical.
  2. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging .
  3. Remove the coolant recovery or the surge tank. Refer to Coolant Recovery Reservoir Replacement or Surge Tank (Diesel) Replacement in Engine Cooling.
  4. Remove the air cleaner from the vehicle. Refer to the following procedures in Engine Controls:
    5. • Air Cleaner Assembly Replacement4.3L
    • Air Cleaner Assembly Replacement 5.0/5.7L
    •  Air Cleaner Assembly Replacement 6.5L Diesel
    •  Air Cleaner Assembly Replacement 7.4L

    Object Number: 300814 Size: SH
  5. Remove the air conditioning lines to the accumulator (5) and the condenser (4).
  6. Remove the auxiliary hose connection at the compressor, if equipped.
  7. Cap or plug all open connections.
  8. Remove the bolt from the hose to the compressor.
  9. Remove the hose (3) from the vehicle.

Installation Procedure
  1. Install the hose (3) to the vehicle.

    2. Object Number: 300814 Size: SH

    Notice: 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.

  2. Install the bolt and the hose to the compressor.

    3. Tighten
    Tighten the hose retaining bolt to 45 N·m (33 lb ft).

  3. Install the auxiliary hose connection at the compressor, if equipped.

    4. Tighten
    Tighten the auxiliary hose connection to the compressor to 45 N·m (33 lb ft).

  4. Install the air conditioning lines to the accumulator (5) and the condenser (4).

    5. Tighten

        • Tighten the A/C line to the accumulator to 48 N·m (35 lb ft).
        • Tighten the A/C line to the condenser to 28 N·m (21 lb ft).
  5. Install the air cleaner to the vehicle. Refer to the following procedures in Engine Controls:
    6. • Air Cleaner Assembly Replacement4.3L
    • Air Cleaner Assembly Replacement 5.0/5.7L
    •  Air Cleaner Assembly Replacement 6.5L Diesel
    •  Air Cleaner Assembly Replacement 7.4L
  6. Install the coolant recovery or the surge tank. Refer to Coolant Recovery Reservoir Replacement or Surge Tank (Diesel) Replacement in Engine Cooling.
  7. Recharge the refrigerant to the system. Refer to Refrigerant Recovery and Recharging .

    8. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  8. Connect the battery negative cable. Refer to Battery Cable Replacement (Battery Disconnect/Connect ) in Engine Electrical.