GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Yukon XL - 2WD 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Air Conditioning (A/C) High Pressure Recirculation Switch Replacement

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    2. Object Number: 397231 Size: SH
  2. Disconnect the electrical connector from the A/C high pressure recirculation switch.
  3. Remove the A/C high pressure recirculation switch from the evaporator tube.

Installation Procedure

    Object Number: 397231 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.

  1. Install the A/C high pressure recirculation switch.

    2. Tighten
    Tighten the switch to 6 N·m (53 lb in).

  2. Connect the electrical connector to the A/C high pressure recirculation switch.
  3. Leak test the fittings of the components using the J 39400-A .
  4. Lower the vehicle.