Condition
| Possible Cause
|
Compressor Noise
| Resonant compressor
noises are not a cause for alarm. However, irregular noises or rattles may
indicate broken parts or excessive wear.
| • | The A/C system is overcharged. Refer to Refrigerant
Recovery and Recharging
. |
| • | The compressor mounting bolts are not torqued to specification. |
| • | The compressor pulley bearing is faulty. |
| • | The compressor drive belt is slipping. |
|
Refrigerant Line/Hose
Noise
|
| • | The lines/hoses are grounded. Reposition the A/C lines/hoses. |
| • | The lines/hoses are rubbing on other components. Reposition and
secure the A/C lines/hoses. |
|
Internal Compressor Noise
|
Replace the compressor. Refer to Compressor Replacement
.
|
Compressor Clutch Noise
|
| • | A faulty compressor clutch. Replace the compressor clutch. Refer
to Compressor Clutch Plate and Hub Assembly Removal (V5
- Direct Mount)
and Compressor Clutch Plate/Hub
Assembly Install (V5 - Direct Mount)
. |
| • | A faulty bearing. Replace the compressor. Refer to Compressor Replacement
. |
|
HVAC Module Noise
|
| • | Foreign material is in the HVAC module. |
| • | The HVAC module is not torqued to specification. |
| • | The actuator doors are damaged. |
| • | The actuator door seals are damaged. |
|
Blower Motor
Noise
|
| • | Foreign material is on the fan. |
| • | The fan blades are damaged. |
| • | The blower motor has internal damage. |
|
