Weak AC Airflow with Bad Smell
The AC system in your 2020 Ford F-150 is producing weak airflow and a bad smell, likely due to a clogged or dirty cabin air filter, or a failing blower motor. The smell suggests mold or debris buildup in the evaporator case.
Diagnosis Details
Possible Causes
Clogged or dirty cabin air filter restricting airflow and causing odor
Mold or mildew buildup on the evaporator coil due to moisture
Blower motor resistor failure or blower motor malfunction
Related OBD-II Codes
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What You Should Do
Replace the cabin air filter first.
If smell persists, use an AC evaporator cleaner spray.
Check blower motor operation and resistor if airflow remains weak.
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.
