
AC Condensation Drain Leak
Clear water leaking under the vehicle while the AC is running is normal condensation from the air conditioning system. The evaporator drain is expelling moisture removed from the cabin air, similar to a home AC unit. This is not a mechanical issue.
Diagnosis Details
Possible Causes
Normal AC condensation draining from the evaporator case drain tube.
Clogged or partially blocked drain tube causing water to overflow from a different location.
Cabin air filter housing or HVAC case seal leak allowing water to drip elsewhere.
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What You Should Do
No repair needed if water is clear and only appears when AC is running.
Ensure the drain tube is not blocked by debris.
If water appears inside the cabin or is colored/smelly, have the HVAC drain system inspected.
Related Repairs
Estimated Repair Cost
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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.
