Skip the auto shop - Our mechanics make house calls

Q: White smoke from exhaust

asked by on

My car is blowing white smoke out of the exhaust.

Hello. White smoke out of the exhaust usually means that there is coolant getting into the cylinder head, or engine block. The most common cause of this is a blown head gasket. This means that the head gasket that sits between the engine block and cylinder head is leaking coolant into the engine. To repair this problem, the head gasket can be replaced, along with the cylinder being rebuilt. Otherwise, the engine would need to be replaced completely. A thorough diagnosis of the source and cause of the white smoke should be done by a certified technician, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Is it worth to fix if radiator blew and there appears to be white milky stuff "cloging" the engine?

The overheating of the engine has blown the head gaskets and most likely has done major engine damage. The bearings may have seized from running with the oil and coolant mixed. The engine may not be able to be overhauled...

Q: Transmission slipping

Hello. This is a common problem with Acura transmissions that have V6 motors. The transmission would need to be rebuilt or replaced entirely in order to fix the problem. There are recalls from the dealer about transmission problems in these...

Q: whats the typical cost to replace a rear passenger bushing 2005 galant 4cyl.

There is more than one bushing at the wheel position you are inquiring about. The upper control arm has bushings as well as the lower control arm and the trailing arm assembly. In addition, the sway bar has bushings. The...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...