2005 Buick Century A/C Compressor Cut-Out Switches

You need to inspect the switch cavity and the O-ring groove in the rear head for dirt or foreign material, clean the cavity and groove as necessary, coat the new O-ring using clean 525 viscosity refrigerant oil, install the O-ring into the groove in the switch cavity, lubricate the switch housing using clean 525 viscosity refrigerant oil, carefully insert the switch into the switch cavity until the switch bottoms in the cavity, use the J 5403 to install the switch retaining ring with the high point of the curved sides adjacent to the switch housing, ensure that the retaining ring is seated in the retaining ring groove in the switch cavity, evacuate and recharge the system and perform a leak test.

You need to recover the refrigerant using the J 39500-B, disconnect the electrical connector from the switch in the rear head of the compressor, and remove the switch retaining ring using the J 5403, the switch from the compressor and the old O-ring seal from the switch cavity using the J 9553-01.

You will be needing a J 5403 internal snap ring pliers, J 9553-01 O-ring remover, and J 39500-B ACR4-black shroud.