smell of antifreeze thru vents

Asked by May 13, 2018 at 06:56 AM about the 2003 Ford Taurus SES

Question type: Maintenance & Repair

I smell antifreeze thru the vents sometimes, got
great heat, smells like running hot on outside of
car and smell antifreeze in outside as well, temp
Gage is normal, where could a leak be I can't find
one.. Also pvc hose leaking could that have
anything to do with the smell? I'm at a loss here
please help.

2 Answers


If smelling antifreeze through vents heater core has a small leak needs to be replaced or you can try a radiator stop leak not a 100% guarantee that it will work but it is worth a try. If does not work the first time do not continue to add stop leak hoping it will work that is when you can clog up cooling system.


PVC hose leaking? that would be some residual oil, so that wouldn't have anything to do with it, just maybe give you a check engine light. You have a coolant leak somewhere, if you can smell under the engine, then it's leaking there and evaporating on the hot engine or exhaust coming into the car via the vents. perform a coolant pressure test to find the leak much easier.

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