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Q: What would cause white smoke to come out of heater vents in 2003 Honda Accords?
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What can cause white smoke inside your car?

It could be steam from the heater core


What would cause my Honda CRF 23F to smoke a lot?

It sounds like there may be a leak. If oil is leaking down on the manifold it will cause alot of smoke.


Will a bad ground on blower resistor cause smoke to come out of vents?

The blower resister is not supposed to be grounded. The smoke may be steam from a leaky heater core.


It looks like smoke coming from the vents of your 90 Honda civic with AC on leaving oily film what's this How do you fix?

you need to replace your heater core that smoke and oily film is anti-freeze


What is wrong with the heater on a 1992 Honda Accord if the fan does not blow at all and you can smell smoke from the left side of the hood after driving?

Defective blower motor?


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A Fire!


Can a leak in the heater core cause exhaust smoke?

No, absolutely not. I am an experienced automotive technician and this is definitely not something that is possible.


What would cause steam smoke to come out air vents in 03 pt cruiser?

The heater core has failed.


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.


What would cause smoke to blow through the defrost of a 1990 Ford F 150 while the heater is switched on?

In many cases leaves can cause smoke to blow through the defrost of a 1990 Ford F 150


Can a bad oxygen sensor cause overheating and white white smoke from the exhaust on a 1992 Honda civic?

it would cause overheating but the smoke is probally coming from some sort of water or antifreeze in combustion chamber


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.