Weak A/C Airflow with Bad Odor
The A/C system is blowing weak air and has a foul smell, likely due to a clogged cabin air filter or debris in the evaporator case. This reduces cooling efficiency and can cause mold or mildew odors.
Diagnosis Details
Possible Causes
Clogged cabin air filter restricting airflow and trapping moisture/debris, leading to odor.
Mold or mildew buildup on the evaporator coil from condensation, causing bad smell and reduced airflow.
Blower motor resistor failure or debris in the blower fan, reducing fan speed.
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What You Should Do
Replace the cabin air filter first.
If odor persists, use an A/C evaporator cleaner or have the evaporator case professionally cleaned.
Check blower motor operation and resistor if airflow remains weak.
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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.
