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Need help with AC smell

2419 Views 15 Replies 9 Participants Last post by ivey_usmc, Mar 18, 2022

ivey_usmc

Discussion Starter · Mar 17, 2022

So far this has been the second year I've had this issue. When I turn on or off the ac I get a moldy sour smell. After it runs for a few minutes it smells fresh. This is what I have done so far:

multiple cabin air filters
spraying Lysol threw behind the cabin filter
making sure the drain port above the transmission bell housing in not clogged
spray Kool ac foam cleaner 2 times through the air vents and dash defrost vent to clean the coils
Ozone deodorizer machine for 24 hrs

Kind of at my whits end here. We take my wife car most of the time because my challenger stinks and it bums me out not to drive it.
Does anyone have any Ideas?

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Scottie K

· #2 · Mar 17, 2022

Do you run the AC all the way until you turn your car off? I have heard that this can leave moisture in the system and cause that musty smell. When I run my AC, I tend to turn it off a mile or so with only the fan on before I park to reduce residual moisture in the vents. It may be a placebo effect, but it made sense to me.

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