S15/T15 Sonoma P/U 2WD L4-2.2L VIN 5 Flex Fuel (2001)
A/C Coupler O-ring: Service and Repair
O-RING REPLACEMENT
NOTE: Install new GM-approved service replacement air conditioning O-ring seals whenever a joint or fitting is disassembled, except when the O-ring
seals are provided on new replacement components. Always use the proper replacement O-ring seals bearing the specified part numbers, otherwise heavy
leakage of Refrigerant-134a may occur. Refer to the part number for identification.
1. Examine the O-ring seals and the fittings in order to ensure that the O-ring seals do not have nicks or deformities. Replace any nicked or deformed
parts in order to prevent refrigerant leakage.
IMPORTANT: In order to prevent the possibility of swelling and a reduction in the sealing effectiveness, do not soak the O-ring seals in refrigerant
oil.
2. Coat the air conditioning O-ring seals with 525 viscosity refrigerant oil just before installation.
3. Slip the O-ring seals onto the flange tube in order to ensure the proper location and seal.
