Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
Low Pressure Sensor / Switch: Service and Repair
AIR CONDITIONING (A/C) LOW PRESSURE SWITCH REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the electrical connector from the A/C low pressure switch.
2. Remove the A/C low pressure switch from the accumulator.
3. Remove the O-ring and discard.
INSTALLATION PROCEDURE
1. Lightly coat the NEW O-ring seal with mineral base 525 viscosity refrigerant oil.
2. Install the NEW O-ring seal to the switch.
NOTE: Refer to Fastener Notice in Service Precautions.
3. Install the A/C low pressure switch to the accumulator.
Tighten
Tighten the switch to 6 N.m (53 lb in).
4. Connect the electrical connector to the A/C low pressure switch.
5. Leak test the fittings of the components using the J 39400-A.
