GM 84451983
Drier

The initial step to install the A/C accumulator consists of refrigerant recovery from the A/C system specifically intended for vehicles with an auxiliary system. Begin by removing the condenser tube from the condenser but stop 20 millimeters (0.75 inches) after the bend of the tube for marking. Then proceed 42 millimeters (1.65 inches) beyond the first mark to place another point. Cut the marked area of the condenser tube with a tubing cutter while paying attention to prevent metal burrs from entering the tube during the procedure. Isolate any burrs that appear on the condenser tube before removing its nuts and ferrules and O-rings from the A/C accumulator. Place suitable nuts along with ferrules onto each section of condenser tube; however, keep the O-rings aside for now. Position the small part of each ferrule toward the nut before attaching the A/C accumulator to the condenser tube. Keep the accumulator flow arrow aimed at the evaporator. Tighten the condenser tube on the A/C accumulator when holding it while keeping the torque at 34 N.m (25 lb.ft). Following the removal of nuts from the A/C accumulator, mount O-rings onto the condenser tube followed by nuts reinstalling on the A/C accumulator while tightening them to 34 N.m (25 lb ft). The last procedure involves connecting the condenser tube to the condenser unit while also performing A/C system evacuation and recharge operations through a Halogen Leak Detector check (J 39400-A).

Only vehicles with auxiliary systems need a/c accumulators so start the installation process by recovering a/c refrigerant from the system. The technician should mark a condenser tube section 20 mm (0.75 in) from the bend and then remove it from the condenser. Create another mark 42 mm (1.65 in) beyond the preceding point. Avoid the entry of metal burrs into the condenser tube while performing cutting or removal tasks. Cautiously cut through the marked portion of the condenser tube with the tubing cutter before removing all burrs. The next step involves removing the nuts and ferrules together with the o-rings from the A/C Accumulator but avoid installing the o-rings at this point. Install nuts together with ferrules over each segment of condenser tubing by placing ferrule ends at the narrow portion of the nut. Fit the A/C Accumulator with its flow arrow pointing to the evaporator onto the condenser tube. Maintain a hold on the condenser tube within the A/C Accumulator while torquing the nuts to a specification of 34 n.m (25 lb ft). The next step involves taking out the nuts from the A/C Accumulator but placing o-rings onto the condenser tube. Fasten the two nuts which secure the A/C Accumulator and tighten them with 34 n.m (25 lb ft) of torque. Close the condenser tube before evacuating and recharging the a/c system with the halogen leak detector (J 39400-A) for fitting leak detection.

Before setting the A/C Accumulator (ACDelco P/N 15-1697) between the condenser and expansion (orifice) tube you must recover refrigerant from the a/c system. Cut the marked section of condenser tube using a tubing cutter after marking it 20 mm (0.75 in) from the bend and another 50.8 mm (2 in) beyond. You should use a tubing cutter to cut the marked condenser tube section. Keep all metal burrs outside the tube space when you execute this process. Place all burrs from the condenser tube away before removing the A/C Accumulator's nuts, ferrules and o-rings. Install ferrules and nuts onto both sides of the condenser tube without adding the o-rings at present. Place ferrules on condenser tube with small inner end facing nuts while mounting the A/C Accumulator onto the tube with the flow arrow pointing toward the evaporator. Tighten the nuts on the accumulator by applying torque of 15 n.m (11 lb ft) while holding the condenser tube inside the accumulator. After securing the nuts on the A/C Accumulator reverse their removal to put on the o-rings to the condenser tube and reinstall the nuts back to the accumulator while tightening them to 15 n.m (11 lb ft). The last step involves reattaching the condenser tube to the condenser unit before conducting a/c system evacuation and recharging along with using the halogen leak detector(J39400-A) for fitting tests.

Recovery of a/c system refrigerant should occur before the A/C Accumulator installation at the a/c evaporator tube between the condenser and the expansion (orifice) tube. Measure the condenser tube starting 20 mm (0.75 in) after the bend then mark the tube. Subsequently measure 50.8 mm (2 in) following the first mark before marking it again. A tubing cutter cuts through the marked condenser tube section after which the user removes all burrs that could enter the tube. Remove the nuts and ferrules along with the o-rings from the A/C Accumulator after which o-rings stay uninstalled. Position the ferrules and nuts on both sides of the condenser tube segments before inserting ferrules with tiny ends facing the nuts. The A/C Accumulator should be fitted next with its flow arrow aimed at the evaporator. You need to fasten the condenser tube within the A/C Accumulator while applying 15 n.m (11 lb ft) torque to the nuts. To complete this operation, first take off the nuts from the A/C Accumulator then add the o-rings to the condenser tube before reinstalling the accumulator nuts for a second time and torquing them to 15 n.m (11 lb ft). Reinstall the condenser tube to the condenser unit before evacuating plus recharging your a/c system and using a halogen leak detector (J 39400-A) for fitting leak checks.

Attach the A/C refrigerant filter to the condenser tube with the flow arrow pointing towards the evaporator.

Install the new accumulator and secure it by installing the screw to the accumulator retaining bracket, tightening it to 9 N.m (80 lb in).

Recover the refrigerant from the A/C system.

Remove the front evaporator tube, ensuring that the nuts and ferrules remain on the condenser tube.

Evacuate and recharge the A/C system.

Install the screw to the accumulator retaining bracket and tighten it to 9 N.m (80 lb in).

Remove the front evaporator tube.

Remove the nuts from the A/C refrigerant filter and take the filter off the condenser tube.

Tighten the nuts to 34 N.m (25 lb ft).

Install new sealing washers and then install the evaporator outlet pipe, tightening its retaining nut to 16 Nm (12 lb ft).

Recover the refrigerant from the A/C system.

Remove the front evaporator tube, ensuring that the nuts and ferrules remain on the condenser tube.

The proper size nuts and ferrules.

Remove the compressor suction hose retaining nut and the compressor suction hose from the accumulator.