Steam coming from defrost vents after air conditioner used

Asked by Apr 26, 2016 at 11:36 AM about the 2004 Toyota Highlander Limited V6

Question type: Maintenance & Repair

when i started up my car today to drive to work, by the time i got here there
was a small amount of steam or smoke coming from the defrost vents after i
had the air conditioner on, can you tell me what or why ??

5 Answers

242,245

One cause is a leaking heater core. Is there a film on the windshield?

Not that I can see

how do I know for sure if it is a leaking heater core?? And how expensive would it be to fix? Thank you so much

242,245

is your coolant level going down? You can also perform a coolant pressure test, and or have a mechanic inspect it.

it only did it once and the coolant level is correct. What else could it be?

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