AC Not Cold with Bad Odor
The air conditioning system is not producing cold air and emits a foul smell, likely due to a refrigerant leak, a failing compressor, or microbial growth in the evaporator.
Diagnosis Details
Possible Causes
Low refrigerant level due to a leak in the AC system (e.g., at seals, hoses, or condenser).
Faulty AC compressor or clutch not engaging, preventing refrigerant circulation.
Clogged or dirty cabin air filter causing reduced airflow and musty odor from mold or bacteria buildup.
Evaporator core leak or contamination leading to refrigerant loss and smell.
Related OBD-II Codes
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What You Should Do
Inspect cabin air filter and replace if dirty.
Check AC refrigerant pressure with a gauge set; if low, have a professional locate and repair the leak, then recharge the system.
If compressor is not engaging, test electrical connections and compressor clutch.
For persistent odor, use an evaporator cleaner or have the system professionally sanitized.
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.
