AC System Noise Inside Cabin
The customer reports an unusual noise inside the cabin when the AC is on. This is likely related to the HVAC blower motor, compressor, or a refrigerant issue.
Diagnosis Details
Possible Causes
Blower motor fan blade rubbing against housing or debris in the blower motor cage
Worn or failing blower motor bearings
AC compressor clutch or bearing noise transmitted through the system
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What You Should Do
Inspect the cabin air filter for debris, then remove the blower motor and check for foreign objects or damage.
If the noise persists, test the blower motor operation and listen for bearing wear.
Also check the AC compressor clutch engagement and belt tension.
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
