Clear Water Leak Under Toyota Tacoma
Clear water leaking from under the vehicle when the AC was not running is likely condensation from the air conditioning evaporator drain, but since the AC was off, it could also be normal water runoff from rain or washing. However, if the leak persists without AC use, it may indicate a coolant leak (which is usually colored) or a windshield washer fluid leak (often blue/green). Clear water is typically not urgent, but verify the fluid source.
Diagnosis Details
Possible Causes
Condensation from the AC evaporator drain (residual moisture after AC use)
Rainwater or car wash water trapped in body panels or undercarriage
Coolant leak (if water is actually clear and not colored, but coolant can appear clear in some cases)
Windshield washer fluid leak (if fluid is clear and not dyed)
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What You Should Do
Check the fluid color and smell.
If it's truly clear and odorless, it's likely water.
Monitor the leak location and frequency.
If it only occurs after AC use, it's normal.
If it persists, inspect the coolant reservoir level and washer fluid reservoir.
Look for drips under the engine bay or near the firewall.
If coolant is low or fluid smells sweet, have the cooling system inspected.
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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.
