OEM 2005 Chevrolet Astro A/C Accumulator

2005 Chevrolet Astro Parts Questions & Experts Answers

• Q: How to replace the A/C Accumulator in a refrigerant system on 2005 Chevrolet Astro?

  A: Start accumulator replacement by recovering refrigerant and disconnecting the low pressure switch electrical connector followed by removing the switch and low pressure switch. Start by loosening the compressor suction hose nut from the accumulator and remove the compressor suction hose. Next loosen the evaporator tube nut to remove the evaporator tube from the accumulator. Discard the O-ring seals and remove the accumulator mounting bracket bolt to pull out the accumulator with its mounting bracket. Once separated turn off all exposed connections with caps or tape. Installation begins by removing caps or tape from A/C fittings to add PAG oil to the accumulator if needed then setting the accumulator onto its mounting bracket before installing both the accumulator and bracket to the module. Secure the accumulator mounting bracket bolt with 4 N.m of torque while using a torque wrench (35.lb in.) Follow this with new O-ring seals. Secure the compressor suction hose to the accumulator through a hose nut torque setting of 48 N.m (35 lb ft). The evaporator tube installation should begin by placing it on the accumulator followed by tightening its nut to 28 N.m (20 lb ft). The technician should install the low pressure switch in position before securing the connection with 6 N.m (53 lb in) torque and conducting the electrical low pressure switch connection. Complete system evacuation along with charge procedures followed by a Halogen Leak Detector (J 39400-A) test of repaired or reinstalled component fittings.