2009 Chevrolet Trailblazer A/C Accumulator

First, you need to recover the refrigerant and disconnect the electrical connector from the A/C pressure switch. Then, please remove the A/C low-pressure switch, remove the nut retaining the accumulator to the evaporator, and remove the compressor suction hose assembly from the accumulator. Finally, you should remove and discard the O-ring seals, remove the accumulator clamp nut, and remove the accumulator from the vehicle.

First, you need to install the accumulator to the vehicle, install the accumulator into the accumulator clamp, install the accumulator clamp nut and tighten to 10 N.m (88 lb in), install the A/C low-pressure switch and tighten to 5 N.m (44 lb in), and install new O-ring seals. Then, please install the accumulator to the evaporator, install the accumulator retaining nut and tighten to 28 N.m (21 lb-ft), connect the compressor suction hose to the accumulator, install the suction hose nut and tighten to 48 N.m (35 lb-ft), and connect the electrical connector to the A/C low-pressure switch. Finally, you should evacuate and recharge the A/C system, and leak-test the fitting of the component using the J 39400-A.