Intermittent Weak A/C Airflow with Bad Odor
The A/C system in your 2020 Ford Explorer is producing weak airflow that comes and goes, along with a bad smell. This suggests a problem with the blower motor, evaporator, or cabin air filter, rather than a refrigerant issue. The intermittent nature points to an electrical or mechanical fault.
Diagnosis Details
Possible Causes
Clogged or dirty cabin air filter restricting airflow, often causing musty odors.
Blower motor resistor or blower motor failing intermittently, causing weak or no airflow.
Evaporator core mold or debris buildup, producing bad smell and reducing airflow when wet.
Related OBD-II Codes
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What You Should Do
Start by replacing the cabin air filter.
If the issue persists, have a technician test the blower motor and resistor.
If the smell is moldy, an evaporator cleaning may be needed.
Check for debris in the air intake.
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.
