Intermittent Weak AC Airflow with Bad Odor
The AC system in your 2020 Toyota Camry is producing weak airflow that comes and goes, along with a bad smell. This suggests a blockage or contamination in the evaporator or cabin air filter area, possibly due to mold or debris. The intermittent nature points to a partially clogged filter or a failing blower motor resistor.
Diagnosis Details
Possible Causes
Clogged or dirty cabin air filter restricting airflow and causing musty odors
Mold or bacterial growth on the evaporator coil producing bad smell and reducing airflow
Failing blower motor resistor causing intermittent fan speed issues
Debris (leaves, dirt) blocking the evaporator drain or air intake
Related OBD-II Codes
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What You Should Do
Start by replacing the cabin air filter.
If the smell persists, have the evaporator coil cleaned and the drain checked for blockages.
If airflow is still intermittent, test the blower motor resistor and blower motor.
A professional AC inspection may be needed to check refrigerant levels if cooling is also poor.
Related Repairs
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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.
