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Most likely the heater core is leaking. If there is also water on the floor and an antifreeze smell in the passenger compartment, those are also signs of a cracked heater core. Also, GET THAT TEMP GAUGE FIXED!!! You could be overheating and not even know it. Once the motor overheats, you're risking a blown head gasket, a VERY EXPENSIVE repair, or even worse, a blown engine. If steam is coming out of the vents it is very possible the motor is overheating. You need two repairs, your heater core and your temperature gauge.
My heater core was replaced since it had a hole in it. The blower was also replaced but with a used one. The guage is now working and so far, no more white smoke. Heater does not get hot though and the blower motor is very loud. Hey, ya gotta laugh a little...from one thing to another. I suppose the worse thing is over. Thank the Lord though I did not have a new car since the guy that worked on it did a number on my dash.
Symptom: on a 2000 Ford Contour, white smoke came through the vents and the smeel was acrid. We switched the car off. A few hours later, the car was fine, no more smoke, but the heater didn't work on one speed setting.
Solution: there is a resistor block which controls the blower speed in the ducting. When one of the resistors goes, white smoke is fed dirrectly up to the vents. Replacement is easy (admittedly while doing a head stand in the passenger footwell) and fairly cheap.
Suggestion: many other cars will have a similar layout. Check this out before investing in a new heater core...
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Why does white smoke come out of your vents when you turn on your heater in your car?
If it is smoke the heater fan motor has failedORElectronics in the heater have failed ORif it smells like anti freeze rather than smoke the heater core has failed.
White smoke coming from the air vents of a 1991 ford tempo?
replace the heater core
Why is there a smell of antifreeze and white smoke coming through the vents of your 1997 Toyota Camry?
heater core
Why does air or white smoke come out of the front vents?
Either the a/c system is freezing up or you have a leaking heater core.............
What does it mean when antifreeze smelling white smoke is coming from defroster vents and engine is overheating?
heater core is shot and you have to get a new one
What can cause white smoke inside your car?
It could be steam from the heater core
Is the heater core bad when white smoke comes from the vents when the air is on and it smell like antifreeze in a 1997 Ford F-150?
Almost 100% certainty
My 1998 Durango is blowing white smoke out the vents and moisture on the windows but it is not antifreeze can anyone tell me why?
in my experience it is a slight leak in heater core it will be antifreeze causing this replace heater core and problem will be fixed
What can cause white smoke from exhaust when heater is on?
I feel these are unrelated but you can investigate a leak in the hoses leading to the heater core as they maybe leaking onto the exhaust pipe, that would produce white smoke, but not from within the tailpipe exhaust. Water and oil leaks will produce white smoke the smell will help you determine which it is.
What can cause white smoke coming out of vents?
That is probably antifreeze steam. Your heater core is a small radiator used to heat your car. The engine heats the antifreeze and circulates it through the heater core. Your blower blows heat through the core (radiator) into the car, and warms you. If the core gets a small leak, it will put out steam.
What does Bad smell and white smoke from air con vents and brown slippery fluid leaking from underneath of 1999 Eddie Bauer expedition indicate?
Leaking heater core. It will need to be replaced.
What is wrong and what should be done if a car emits white smoke from the air vents even if AC and heat are turned off?
Heater core needs to be checked May need to be changed or cleaned answer heater core is bad, replace with a new one
