GM 89018645
Accumulator

Begin installation of the A/C Accumulator (ACDelco P/N 15-1696) to the a/c Evaporator tube by removing the air cleaner. Mark the position 50 mm (2 in) from an Evaporator tube bend which is close to the expansion tube end before adding another 50.8 mm (2 in). Variables can install the A/C Accumulator (Adelco P/N 15-1696) to the a/c Evaporator tube between the condenser and Evaporator with a tubing cutter (J 39400-A) by cutting the tube at the marked position and cleaning burrs from the tube to prevent metal intrusion. The A/C Accumulator requires nut removal together with ferrules and o-rings at this point although o-ring installation is postponed until further instructions. Fit the ferrules end first into each Evaporator tube half followed by nuts which should have ferrules with small ends directed toward the nut. Use the A/C Accumulator to connect the Evaporator tube by facing the flow arrow toward the Evaporator while tightening the nuts against the accumulator to 15 n.m (11 lb ft). Place the o-rings inside 525 viscosity refrigerant oil before installing them between the Evaporator tube halves. As the last step reinstall the nuts to the A/C Accumulator while tightening them to 15 n.m (11 lb ft) and complete the process by evacuating and recharging the system followed by fitting leak detection with a halogen leak detector (J 39400-A) then reinstalling the air cleaner.

The A/C Accumulator replacement process starts by properly removing the system refrigerant. The cleaning process requires air cleaner removal where you must keep nuts and ferrules on the evaporator tube. First detach the nuts from the A/C Accumulator before taking out the A/C Accumulator from the evaporator tube. The installation begins with o-rings attachment to the evaporator tube before positioning the A/C Accumulator on the evaporator tube with its flow arrow facing the evaporator. Secure the nuts on top of the A/C Accumulator but tighten them only to 15 n.m (11 lb ft). The system must be recharged after completing the leak test on fittings with the halogen leak detector (J 39400-A). This test must occur before reinstallation of the air cleaner.

Add the refrigerant oil to it according to the refrigerant system capacities.