Weak Airflow and Bad Smell from AC
The AC is not blowing cold air, produces a bad smell, and airflow is weak. This combination suggests a clogged or dirty cabin air filter, possibly with mold or debris, restricting airflow and causing odors. Other causes include a failing blower motor or evaporator issues.
Diagnosis Details
Possible Causes
Clogged or dirty cabin air filter restricting airflow and trapping moisture/mold causing bad smell
Blower motor resistor or blower motor failure reducing fan speed
Evaporator core clogged or covered in mold/mildew, reducing airflow and causing odor
Related OBD-II Codes
Not satisfied with this diagnosis?
Try Another DiagnosisWhat To Do Next
What You Should Do
Inspect and replace the cabin air filter.
If smell persists, clean the evaporator with a foam cleaner and check blower motor operation.
If airflow remains weak, test the blower motor resistor and motor.
Related Repairs
Share this diagnosis
Help others with similar symptoms
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.
