OEM Chevrolet Colorado A/C Accumulator

Chevrolet Colorado A/C Accumulator Parts and Q&A

• Drier
  89019119
  Q: How to install the A/C Accumulator (ACDelco P/N 15-1696) on Chevrolet Colorado?

  A:

  Start the installation process of the A/C accumulator (ACDelco P/N 15-1696) by conducting leak detection using a Halogen Leak Detector (J 39400-A) to check for any gas emissions. Extract the evaporator tube from the clips located inside the cowl. Apply a mark 50 mm beyond the bend on the evaporator tube adjacent to the driver fender before moving 50.8 mm from that point. Use a tubing cutter to cut along the marked portion of the evaporator tube while making sure metal burrs avoid entering the tube during both cutting and removal processes. Take off the nuts, ferrules, and O-rings from the A/C accumulator before skipping installing the O-rings at this moment. Insert each ferrule along with its nut into the evaporator tube ends so the ferrules maintain the small end facing the nut. The installation of the A/C accumulator must commence with its attachment to the evaporator tube using the flow arrow direction as the reference. When you securely manage the evaporator tube within the accumulator, tighten the nuts using 15 N.m (11 lb ft.) torque. You should start by uninstalling the nuts which secure the accumulator before placing O-rings to the evaporator tube halves. Once installed, reinstall the nuts tightly to 15 N.m (11 lb ft). Evacuation and recharging of the system needs to be followed by a leak test on the fittings utilizing the Halogen Leak Detector (J 39400-A).
• Dehydrator
  25901981
  Q: How to replace the A/C Accumulator in an A/C system on Chevrolet Colorado?

  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.