Car Problem Reports

Dodge Ram 1500 Cleaner/Disinfectant Issued to Address Musty Odor in AC System

Dodge Ram 1500 Problem
37 Reports
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Model Years Affected: 1994, 1997, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

Average Mileage: 94,214 mi (16,500 mi - 253,000 mi)


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.

  • , , 72,000 mi

    musty smell after the truck has run and then shut off and restarted. the smell last until the heat gets hot.

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  • , , 76,000 mi

    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.

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  • , , 130,000 mi

    the a/c smells a little musty

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  • , , 66,000 mi


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  • , , 55,000 mi

    No repair. My local dealer has no idea how to fix it.

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  • , , 35,000 mi

    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

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  • , , 128,000 mi

    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.

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  • , , 96,000 mi

    When the fan for the HVAC blower is turned on, a very musty smell is exhausted through the vents.

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  • , , 50,000 mi

    There is no cab air filter and the air is restricted and musty.

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  • Musty order coming out of vent

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