Evaporator Core: Service and Repair

CUSTOM CRUISER, ESTATE WAGON, & MONTE CARLO, REGAL

1. Disconnect battery ground cable and discharge system refrigerant.
2. Disconnect electrical connectors at blower motor, resistor, pressure cycling switch and hi-blower relay, then the heater core ground strap.
3. Disconnect liquid refrigerant line at evaporator inlet pipe.
4. Disconnect compressor suction hose at accumulator outlet pipe and cap all lines.
5. Remove right end of hood seal and air inlet screen attaching screws.
6. Remove case to dash bolts along top, upper to lower case screws around flange and upper to lower case screws inside air plenum.
7. Remove upper case by lifting straight up and off.
8. Remove accumulator pipe bracket to case screws, then the evaporator core by lifting straight up and out of case.