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The blower motor and blower motor wheel are factory balanced and cannot be adjusted or repaired. If faulty or DIAGNOSIS AND TESTING BLOWER MOTOR WARNING: On vehicles equipped with airbags, disable the airbag system before attempting any steering For circuit descriptions and diagrams, refer to Air Conditioning/Heater in Group 8W - Wiring Diagrams. Possible • Faulty fuse • Faulty blower motor. • Faulty blower motor resistor block • Faulty blower motor circuit wiring or wire harness connectors • Faulty blower motor control Possible causes of the blower motor not operating in all speeds include: • Faulty fuse • Faulty blower motor resistor block • Faulty blower motor circuit wiring or wire harness connectors • Faulty blower motor control VIBRATION Possible causes of blower motor vibration include: • Improper blower motor mounting • Foreign material in blower wheel causing out of balance condition • Blower motor faulty. • Improper blower wheel mounting • Blower wheel out of balance or deformed NOISE To determine if the blower motor is the source of the noise, simply switch the blower motor from Off to On. To verify • Improper blower motor mounting • Foreign material in the HVAC air inlet housing • Blower motor faulty. • Improper blower wheel mounting 24 - 264 DISTRIBUTION DR/DH |