GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 Envoy XUV 🢒 Engine 🢒 Engine Controls - 4.2L 🢒 Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement

Removal Procedure
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the electrical connector from the A/C refrigerant pressure sensor. The connector is accessible through the lower control arm.

    3. Object Number: 735912 Size: SH
  3. Remove the A/C refrigerant pressure sensor from the compressor hose block.
  4. Remove and discard the O-ring seal from the A/C refrigerant pressure sensor.

Installation Procedure
  1. Install the new O-ring seal. Refer to O-Ring Replacement .

    2. Object Number: 735912 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 A/C refrigerant pressure sensor to the compressor hose block.

    3. Tighten
    Tighten the A/C refrigerant pressure sensor to 4.8 N·m (42 lb in).

  3. Connect the electrical connector to the A/C refrigerant pressure sensor.
  4. Leak test the fittings of the component using J 39400-A .
  5. Lower the vehicle.