GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 7 of 7
  1. #1

    Default Musty Odor - Air Vents

    Someone on here has probably already done this, so I thought I'd simply ask before checking it out this afternoon.

    I'm getting the gym socks smell coming from my air conditioning vents, so I'm assuming I need to treat the evaporator coils with anti microbial spray. Anyone else had to do this and can you advise if this is an easy task on the colorado? Also, anyone know right off hand where the evap coils drain to?

    Thanks for any tips or diagrams that you may know of.

  2. #2
    Jr. Mechanic Grynder's Avatar
    Join Date
    Oct 2006
    Location
    Arizona
    Posts
    99

    Default

    I believe that the newer GM trucks have a filter that can be changed. Havent looked into it myself yet but I'm thinking it would be easier than treating the coils ?

  3. #3

    Default

    I'll check into that also. Thanks for the tip.

    I wish I had a copy of the diagnostic schematics and parts lists. I used to have this for my land rover, and you could use it to cross reference parts but also to do visual exploratory surgery before getting under the hood. It was very helpful, but I've not found anything similar for the colorado.

    Quote Originally Posted by Grynder View Post
    I believe that the newer GM trucks have a filter that can be changed. Havent looked into it myself yet but I'm thinking it would be easier than treating the coils ?

  4. #4

    Default

    What exactly do you drive Txbond?



    Jamie

    2007 Ford E250(Work van) (Ya, Ya, shut up!)
    1996 GMC Sierra SLE 1500 5.7L/4L60E

  5. #5

    Default Sorry, forgot to mention

    that the vehicle is a 2004 colorado crew cab z71.

  6. #6

  7. #7

    Default

    Quote Originally Posted by Cableguy View Post
    HAHAHAHA Thanks Jamie!

    The vent system in the Colorados are pretty air tight. I have found that if you leave the recirculating vent closed, moisture from the AC gets trapped in the HVAC airbox and starts to mildew, hence the moldy odor.

    All you really have to do is turn off the recirculate button before you leave your truck especially if it's parked out in the hot sun. If the smell is heavy, turn the HVAC system on, set the fan speed to 3 and turn the recirc button on, then mist Febreeze (or any other oxidizing deodorizer of your choice) under the passenger side dash so it will get sucked into the system. Once you can smell the Febreeze or whatever you used coming out of the vents pretty strong, turn the recirc button off and after you hear the airbox vent open, turn the HVAC system off. Repeat as necessary.
    ~Dan
    2005 Chevy Colorado Crew Cab ZQ8 Xtreme


Similar Threads

  1. chevy silverado dash vents dash part ac heat vents
    By ChevyFan in forum Chevy Parts eBay
    Replies: 0
    Last: 10-15-2009, 06:00 PM
  2. Air only out the vents
    By DFores86 in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 3
    Last: 03-05-2009, 06:28 PM
  3. How to keep odor out of a truck that isn't driven often
    By Shadowdub in forum General Chevy & GM Tech Questions
    Replies: 13
    Last: 02-23-2009, 06:43 PM
  4. Musty Odor from A/C
    By MWright936 in forum General Chevy & GM Tech Questions
    Replies: 17
    Last: 12-11-2008, 05:28 AM
  5. Strange Odor/Sounds [Expired Topic]
    By chevy_nox in forum Chevy Equinox Forum (GMC Terrain)
    Replies: 2
    Last: 05-07-2008, 12:12 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •