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new condenser, refer to Oil Level in the Refrigerant Im (200 inch pounds). Evacuate and recharge system. BLOWER MOTOR BLOWER MOTOR VIBRATION AND/OR NOISE The resistor block (Fig. 3), supplies the blower mo- tor with varied voltage (low and middle speeds) or CAUTION: Stay clear of the blower motor and resis- Refer to the Blower Motor Vibration/Noise chart in this section for diagnosis. BLOWER MOTOR ELECTRICAL DIAGNOSIS Refer to the Blower Motor Electrical System Diag- nosis chart in this section. Also refer to Group 8W, REMOVAL AND INSTALLATION (1) Disconnect the negative battery cable. strument Panel. (3) On vehicles equipped with A/C, disconnect the two vacuum lines from the recirculating air door actuator. Dis- connect blower lead wire connector. (4) Remove two screws at the top of the blower housing, securing it to the unit cover. (5) Remove five screws from around the blower housing and separate the blower housing from the (6) Remove three screws securing the blower and wheel assembly to the heater or A/C unit housing. To install, reverse the preceding operation. BLOWER MOTOR WHEEL ASSEMBLY REMOVAL AND INSTALLATION Blower motor must be removed from vehicle before performing this operation. Refer to Blower Motor Re- (1) Remove the spring type retaining ring from the center of the blower wheel (Fig. 6). Note the location (2) Remove blower wheel from blower motor shaft. vent noise or vibration, rotate the blower wheel by Fig. 2 A/C Condenser Refrigerant Lines—Typical Fig. 3 Blower Motor Resistor Block—Typical Fig. 4 Blower Housing—Typical 24 - 58 HEATING AND AIR CONDITIONING Ä |