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CTS-V odor (not the usual)

913 Views 4 Replies 4 Participants Last post by  AAIIIC, 
M
Good day to all. I have searched the forums for my situation with no results. 2014 CTS-V Wagon, owned since new, 7K on the odometer, garage kept. Since new have had bad odor inside in the following situations: driving windows up with vent system off; vent system on in RECIRC mode; windows up with sunroof in vent position. This does NOT smell like: mildew, gas, exhaust, plastic, or oil. Smells more like formaldehyde and will cause illness and itching eyes after 20 minutes driving in the above situations. Thought it may be upholstery gassing but after eight years is as prominent as new. As a mechanic, any thoughts will be helpful and thank you in advance.
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ELDORADO2K
Gut it. Like this.




Clean it. Vacuum the engine compartment, especially the intake vents on the windshield cowl. Vacuum and wash the doorjambs. If there’s any amount of clutter in the vehicle there’s a chance something old & nasty is lurking somewhere underneath, like an old hamburger or something.

Check & change your cabin filter.
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