OEM 2009 GMC Canyon A/C Accumulator

2009 GMC Canyon Parts Questions & Experts Answers

• Q: How to replace the A/C Accumulator in an A/C system on 2009 GMC Canyon?

  A: The first step to replace an A/C accumulator requires recovering refrigerant then removing the grille. It is necessary to check that the system is completely discharged before working with any hoses or lines because R134a can cause injury. The team detaches the condenser hose bolt and pipe from the A/C accumulator and afterwards unfastens the evaporator tube bolt together with its component. After capping both the condenser hose and evaporator tube properly place the A/C accumulator bracket bolts and assembly for removal. Remove the A/C accumulator by loosening its clamp bolt. When installing a new A/C accumulator for the system add the necessary amount of PAG oil that matches the specifications. The A/C accumulator bottle needs to be positioned in the clamp without tightening but new O-rings must be installed while using Polyalkylene Glycol Synthetic Refrigerant Oil (PAG) for internal circulation along with 525 viscosity mineral oil on threads and O-rings to protect the compressor from failure. Use steel fasteners when installing the A/C accumulator bracket while tightening the clamp bolt to 5 Nm (44 lb in). Begin by removing the condenser hose cap after which you must install the new washer before attaching the evaporator tube to the A/C accumulator using a bolt tightened at 20 Nm (15 lb ft). Thread the condenser hose to the A/C accumulator before starting the bolt manually up to 20 Nm torque (15 lb ft). To finish the procedure evacuate the A/C system and charge it before using J 39400-A leak detector to check the fittings and reinstalling the grille.