Accumulator HVAC: Service and Repair

Fig. 6 Accumulator/dryer:

1. Discharge refrigerant from system.
2. On vehicles equipped with 4-140/2.3L engine, remove speed control servo, if equipped.
3. On all vehicles, disconnect suction hose from compressor and cap both hose and compressor.
4. Disconnect accumulator inlet tube from evaporator core outlet, Fig. 6.
5. Disconnect wire harness connector from pressure switch on top of accumulator.
6. Remove accumulator-to-bracket attaching screw and remove accumulator.
7. Reverse procedure to install. Use new O-ring lubricated with refrigerant oil.
8. Leak test, evacuate and charge system. Check system for proper operation.