AC Not Cold, Bad Smell, and Won't Turn On
The air conditioning system is not functioning, produces a foul odor, and fails to activate. This suggests a major electrical or refrigerant issue, possibly with the compressor or a refrigerant leak.
Diagnosis Details
Possible Causes
Refrigerant leak causing low pressure, preventing compressor engagement and producing a musty or sweet smell from evaporator core or mold growth.
Faulty AC compressor clutch or compressor failure due to electrical or mechanical issues, leading to no cooling and potential burning smell.
Blown AC fuse or relay, or a failed AC control module, preventing the system from turning on.
Related OBD-II Codes
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What You Should Do
Check the AC fuse and relay in the fuse box.
If intact, inspect for refrigerant leaks using a UV dye or pressure gauge.
If no leaks, test the compressor clutch electrical connection and clutch operation.
A professional AC service is recommended to diagnose and repair.
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.
