GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 Sonoma Pickup - 4WD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Air Conditioning (A/C) High Pressure Switch Replacement

Air Conditioning (A/C) High Pressure Switch Replacement 4.3L

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

    Object Number: 573960 Size: SH
  1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Resonator Replacement in Engine Controls - 4.3L.
  3. Disconnect the A/C high pressure switch electrical connector (2).
  4. Remove the A/C high pressure switch connector retaining ring.
  5. Remove the A/C high pressure switch from the A/C compressor.

Installation Procedure

    Object Number: 573960 Size: SH
  1. Install the A/C high pressure switch to the A/C compressor.
  2. Install the A/C high pressure switch connector retaining ring.
  3. Connect the A/C high pressure switch electrical connector (2).
  4. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Resonator Replacement in Engine Controls - 4.3L.
  5. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  6. Leak test the fittings of the components using the J 39400-A .