Odor from HVAC vents on Dodge Ram 1500

Some vehicles may develop a musty odor coming from the HVAC system, Dodge has issued a cleaner/disinfectant and a coating for the evaporator designed to inhibit bacterial growth.

RepairPal Verified
Average mileage: 94,072 (16,500–253,000)
12 model years affected: 1994, 1995, 1997, 2002, more2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
44 people reported this problem
18 people shared problem details
2005 Dodge Ram 1500130,000
the a/c smells a little musty
2010 Dodge Ram 150072,000
musty smell after the truck has run and then shut off and restarted. the smell last until the heat gets hot.
2004 Dodge Ram 150076,000
Using the A/C with fresh air produces a musty smell of the air entering the cabin from the HVAC system. I looked in the manual if there was an air filter for the cabin to change with no avail. After returning from an overseas military assignment where the truck was in storage for 3 years, took it for service and asked the dealership to troubleshoot and solve the problem. There was no filter to change/replace so the service department flushed the fresh air intake (at the base of the windshield with a pressure washer/cleaner) and also ensured there was no clog for the A/C drain. Now the fresh air and A/C does not have the musty smell.
2007 Dodge Ram 150066,000
2004 Dodge Ram 150055,000
No repair. My local dealer has no idea how to fix it.
2006 Dodge Ram 150035,000
Had musty odor;delt with it thinking pet or other dirt issue. Then found leak in roof seal going down rear window; fixed leak after 3 trys and carpet replaced; But, never have gotten rid of musty odor
2008 Dodge Ram 1500105,000
Smells musty when air is turned on, I've only put the air freshener in the vents
1995 Dodge Ram 1500100,000
It has smelled like this for years . My wife says she don't want to ride in it now smells so bad . To get to the evaporator core where the problem is . You practicly have to dismantle the cab you got one bolt behind the brain box,the toe side panels there is a bolt they also have the door step threshold needs to come off . the panell below the steering wheel needs to come off to loosen the steering wheel. I just have not done it yet. I shrayed 50-50 clorox & water in there wiyh fan running on high . It smelled better at first but next day it smelled the same .
1995 Dodge Ram 150099,950
Musty mold smell from the AC vents how do I fix it It has had this smell for years it is getting worse as time goes on .How do I get to the air intake I think under the hood .
2010 Dodge Ram 150092,000
Sudden issue with strong mold mildew smell blowing from A/C vents on every start up. Smell is string on start up and then lessens some as you drive.
2008 Dodge Ram 1500128,000
Strong chemical odor after weeks of rain. Thinking of putting a bleach mixture mist down the outside intake to get it in the drain pan and coils.
2002 Dodge Ram 150096,000
When the fan for the HVAC blower is turned on, a very musty smell is exhausted through the vents.
2009 Dodge Ram 150050,000
There is no cab air filter and the air is restricted and musty.
Musty order coming out of vent
2010 Dodge Ram 150074,000
musty dirty smell coming from ac vents
2008 Dodge Ram 150089,000
I've been having the musty odor for awhile now and was not aware I didn't have a filter.
2005 Dodge Ram 150088,000
Musty, stale smell. Ongoing, not been able to fix yet.
2007 Dodge Ram 150046,675
Just a musty/melted plastic kind of smell from the vents. Always wondered what that was. Havent fixed it yet,planning on it now.
Related Items:
Where can you purchase this or do you have to have it installed by a Dodge dealer? "Dodge has...
I have seen this asked many times...with just as many answers. I hope someone can help me out w...
Just tinkering around under the hood today and heard a noise I had never heard before. Took me...
Not really sure what causes my truck to stall when coming to stop for no reason. No check engin...

Related Content