Q: AC smell on 2004 Cadillac DeVille

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
each time I turn on the AC blower motor a musty smell come out of the vents not sure were the drain tub is any help.

(1) Answer
something wrong with your AC,
mutil di@g j2534 can diagnosis of cooling electronic.
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