Grand Caravan

Odor from HVAC vents on Dodge Grand Caravan

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 107,032 (6,000–215,000)
17 model years affected: 1996, 1997, 1998, 1999, more2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2016
74 people reported this problem
Viewing 1 - 20 of 39 comments
We started noticing a musty smell coming from our vents. The smell is only present when the vents are on. It is horrible. We took the van to the dealership where we always have it serviced. They want $110 just to see where the problem is. I am not the only one who has this problem, they need to recall the parts that are causing this problem and fix it. I will never buy dodge again. Way to many problems!!!!!! And they fight tooth and nail not to fix their own poorly engineered vehicles!!!!
Horse manure smell when AC and or Heat is turned on
Same problem, with musty odor, smells like urine when AC is first turned on.
Just started this summer 2011. Where is the AC exit pipe???

We have a 2005 Grand Caravan SE. A musty odor comes out of the air vents when the AC is on. Noticed it start over the last month. Appears that there is no cabin filter so looking for a solution to eliminate the odor.
When turning on the blower, heater or AC, smell coming from the vents was like manure.

Took the van to the dealer and they could not find the problem. They put a refresher into the system which lessened the smell, but did not completely eliminate it. It's now wait and see.
Musty smell coming out of the vents when A/C or heat is turned on.
moldy, musty, un-removable odor
did not fix it as of yet. but now I know what it is.
Every time we get into the van my husband starts sneezing. He has said for years that the vents blow moldy smells.
Musty smell whenever the A/C units starts and from the drivers door when the window is opened.
Changed cabin filter and used shop vac to suck out vents helped out alot
Not fixed yet - but was advised that it's a mold issue and there is a spray you can purchase at an auto parts store and it stops the mold and keeps it from coming back.
whenever the air or heat is turned on - the smell coming from the vents is very musty and does not go away unless you turn off the fan. Tried all kinds of car air freshner to no avail.
Odor smell coming from the vents when I turn the heat on. How do I fix it, please, guys?
Ac smells at start up the ac all the sudden.
Had a 2015 Journey and traded that POS because of all the problems unfortunately I was stupid and bought a 2016 Grand Caravan. If you have ran the A/C at all and then park for the night or you have been running the A/C and turn it off and run just the fan it absolutely smells like _hit for quite a long time. I also have a hot rubber hose smell when van is at operating temperature and I have the fan on A/C or no A/C. This is two of several issues but I have a sensitive sense of smell so this problem is the worse. I would rather have the Journey back.
I havent had a chance to fix it but it gives me a headache as soon as I turn heater onfast and it does not go away it seems to get worse as it gets hotter . Looking to fix it I will let you no
Smell from vents
I just bought the van used. I inspected the car before I bought it and turned on the A/C and heat. There was a slight smell but it wasn't anything I would consider out of the ordinary for a 10-year old used family van. thirty miles into the trip home, the A/C was on and smelled very moldy, similar to an old motel room.
ordor happened right after restart operate air conditioner, never fixed, it will all right after running 20 minutes.