GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1997 🢒 Catera 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Handling of Refrigerant Lines and Fittings

Handling of Refrigerant Lines and Fittings for Cadillac Catera 1997

Refrigerant Lines and Locations
Object Number: 153275 Size: MF
(1)Discharge Hose
(2)Compressor Hose Assembly
(3)Condenser Tube
(4)Evaporator Tube Extension
    • All metal tubing lines should be free of dents or kinks to prevent loss of system capacity due to line restriction.
    • All flexible hose lines should never be bent to a radius of less than four times the diameter of the hose.
    • Unprotected flexible hose lines should never be allowed to come within a distance of 64 mm (2.5 in) of the exhaust manifold, 30 mm (1.2 in) for protected hoses.
    • Flexible hose lines should be inspected regularly for leaks or brittleness and replaced with new lines if deterioration or leaking is found.
    • When disconnecting any fitting in the refrigeration system, the system must first be discharged of all refrigerant. Refer to Refrigerant Recovery and Recharging .
    • Once a refrigerant line is opened to the atmosphere, it must be capped immediately to prevent moisture intrusion.
    • The use of the proper wrenches when making connection on O-ring fittings is important. The opposing fitting must be counter-held to prevent distortion of the lines and/or fittings.
    • Tighten all tubing connections to the specified torque. Too little or too much torques can result in loose or deformed seals. Either condition can result in a refrigerant leak. Refer to Fastener Tightening Specifications .