Weird smell when A/C is turned on

[reecej]

Dorman retro-fit kit 259-201 or 259-200 if you don't want the carbon option. You can find it on Amazon and lots of youtube videos.

 

[OR VietVet]

@reecej, welcome to the forum from Oregon.

Thanks for the info.


We recommend that you put all your rig(s) info in your signature so we all don’t have to guess at year, make, model, engine size, trans, rear axle locker…….etc. While you may have posted pertinent info in your first post, you may forget to do it again and the info is needed by us anyway. Makes it way easier on all members that attempt to help, to have that info right up front. It is also recommended that you take a pic of your RPO codes, on the inside cover of the glove box, and post that image in your signature. All this info will greatly help those that will try to help with a problem.


If there is any other info, like upgrades, mods or recent mechanical/maintenance work done, that would be helpful in any post as well. Too many times a question is asked by the poster and after about 10 responses we find out that the poster has done recent work to attempt to fix the problem or work that was done that SEEMS not related to the problem.

 

[R Black]

I can’t describe it, but when I turn my A/C on a weird smell comes out. First thought was to change the canine filter, but soon found out there isn’t one.

Any idea of what this could be? It doesn’t smell like road kill or anything. Maybe like a cleaning agent of some type or wet type smell. Idk. Thanks in advance.


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Assume you meant cabin not canine filter (?)
Short of ripping ductwork and dash apart to clean it you can turn the A/C on full blast on a non-recirc. setting and direct a fog of Lysol disinfectant spray in there. Do that several times and then a couple days later do it again. Open all the doors when doing this to evac any lingering Lysol.

The smell is probably mold. Relatively harmless. It forms when the A/C evaporator stays wet in humid weather. You could also try turning off the A/C when you get home after driving and blow some ambient air through it for ten minutes, every once in a while to dry the condensor and help prevent the mold from coming back.

I think there are some good videos on Youtube on how to remedy this.

 

[chilleblanco36]

Thanks for the info guys. I’ll try the Lysol solution first. I assume this should be sprayed outside the cabin where fresh air comes in around the windshield somewhere, correct?


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[Fless]

There are many, many evaporator cleaner products, like this one. I've never tried any but I'd do something like this before the Lysol.

https://d2y5sgsy8bbmb8.cloudfront.n...rm-Generic-480p-16-9-1409173089793-rpcbe5.mp4

 

[Fless]

The smell is probably mold. Relatively harmless. It forms when the A/C evaporator stays wet in humid weather. You could also try turning off the A/C when you get home after driving and blow some ambient air through it for ten minutes, every once in a while to dry the condensor and help prevent the mold from coming back.

^^^^ This, once you get it cleaned. A block or two from home turn off the A/C and let the fan blow the system dry.

 

[gooffeyguy]

Then have the dealer (or someone with a Tech2) enable the afterblow function on the HVAC system

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[Sam Harris]

Then have the dealer (or someone with a Tech2) enable the afterblow function on the HVAC system

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I don’t imagine the afterblow can be enabled on an NBS... thankfully, I live in a very dry state. [emoji106][emoji16]

 

[chilleblanco36]

I don’t imagine the afterblow can be enabled on an NBS... thankfully, I live in a very dry state. [emoji106][emoji16]

You might be right. It would not allow me to. It did allow me to turn on the temperature read out that displays on the HVAC controller


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[Linderov]

Wrongo bucko. Look at my signature and see my Tahoe info. It is a 2002 and mine has a cabin air filter from the factory. What is the next excuse or assumption you want to use?

Next time look before you leap.

IMO there is no rhyme nor reason to OEM inclusion of these cabin air filters. I also have an '02 Tahoe with a filter. ?? On a related note, we have a 2006 300C that had no filter, so we bought a used one from, I think, a Challenger, which fit right in. Youda thunk a luxury sport sedan would have one, but no.