Skip the auto shop - Our mechanics make house calls

Q: White smoke issuing from tail pipe.

asked by on

I have white smoke coming out of my tail pipe. In addition, the engine rumbles and the car takes a while to start.

A: Hello. This tends to happen on most vehicle...

Hello. This tends to happen on most vehicles when they have an internal engine problem. Most of the time it is a blown head gasket. When this occurs coolant can get into the combustion chamber and burn off causing the smoke. This will also make it harder for the fuel to burn efficiently causing the rough running. A compression test should be done first to see if there are any variation per cylinder indicating a head gasket problem. This test is done with a compression tester. You should should have the smoke from your engine inspected by a certified mechanic, 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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Vibration with used driveshaft

Hello. If this occurred right after the driveshaft was installed then you either have a defective driveshaft or the job was not done correctly. A mechanic would start by checking for loose components. If anything was not torqued down right...

Q: Damage to car after hitting curb.

Its likely that something is bent and should be checked on an alignment rack by a certified mechanic. Another likely possibility would be a plastic splash guard that came loose in the incident. Have this problem inspected and diagnosed for...

Q: Battery light on, temperature gauge maxed out, A/C system not working correctly

Hi, thanks for writing in. What you are describing happened to me personally a few weeks ago. It sounds like one (or both) of the accessory drive belt(s) that turn your alternator, water pump, and power steering pump is...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.