Musty Odor After Rain in 2020 Jeep Wrangler
A musty smell after rain in a 2020 Jeep Wrangler typically indicates moisture intrusion, often from clogged drain tubes, a leaking door or window seal, or a wet cabin air filter. This can lead to mold and mildew growth if not addressed.
Diagnosis Details
Possible Causes
Clogged HVAC evaporator drain tube or cowl drain, causing water to accumulate and produce a musty odor.
Leaking door or window seals, especially on a Wrangler with removable top or doors, allowing water to enter the cabin.
Wet cabin air filter or debris in the HVAC system that retains moisture after rain.
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What You Should Do
Inspect and clear the HVAC evaporator drain tube and cowl drains of debris.
Check door and window seals for gaps or damage.
Replace the cabin air filter if wet or dirty.
Dry the interior thoroughly and use a disinfectant to prevent mold.
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.