Express 2500 V8-6.6L DSL Turbo (2010)
Refrigerant Pressure Sensor / Switch: Service and Repair
Air Conditioning Cycling Switch Replacement
Air Conditioning Cycling Switch Replacement
Special Tools
J 39400-A Halogen Leak Detector
Removal Procedure
1. Disconnect the low pressure switch electrical connector (2).
2. Remove the low pressure switch (1) from the accumulator.
3. Remove the O-ring seal.
Installation Procedure
1. Install the new O-ring seal to the switch. Refer to Air Conditioning O-Ring Seal Replacement (See: Coupler HVAC/A/C Coupler O-ring/Service
and Repair/Air Conditioning O-Ring Seal Replacement).
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
2. Install the A/C low pressure switch (1) to the accumulator and tighten to 4 Nm (35 lb in).
3. Connect the low pressure switch electrical connector (2).
4. Leak test the fittings of the component using the J 39400-A.