OEM Buick Rainier Air Suspension Compressor

Buick Rainier Air Suspension Compressor Parts Questions & Experts Answers

• Compressor Assembly, Rear
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  Q: How to replace the Air Suspension Compressor safely and effectively on Buick Rainier?

  A: Wear appropriate protection during replacement such as gloves along with ear and eye gear before using a clean cloth to wrap air supply lines to avoid pressure-related injuries. Support your vehicle between D-Height and Full Jounce without pressurized air first and disconnect the air suspension system fuse before depressurizing. Start by lifting the vehicle to a proper height and secure it before removing the air spring compressor bolts on the frame mounting. The maintenance process commences with disconnecting electrical connections for the air inflator switch as well as the air supply lines and vent hose from the air spring compressor followed by separating the electrical connector from the air spring compressor. Disconnect the air supply lines from the air spring compressor and remove the compressor from the vehicle when ensuring that air supply lines match the color markings on the air spring compressor. Check the air supply lines for any signs of damage. Replace the components with deep scores or cuts detected. Use existing fittings from the new compressor to attach the undamaged air supply lines then tighten them to 2.25 N.m (20 lb in). Install the air spring compressor electrical connections while proceeding with the air inflator switch electrical connections and then the air supply lines and air spring compressor vent hose connections. Place the air spring compressor onto the frame mounting bolts and fasten them to a torque of 20 N.m (15 lb ft). After reattaching the air suspension system fuse lower the vehicle to begin testing the air spring leveling operation during which you must keep the engine running for one minute. Examine D-height and look for any air leaks before proceeding. Replace the air supply lines once leaks are detected at the air supply line connections at the air spring compressor.