Skip the auto shop - Our mechanics make house calls

Q: I have white smoke coming out of exhaust and engine running rough.

asked by on

I have white smoke coming out of exhaut and engine running rough. Suspect transmission fluid in engine oil in a 2006 tribute. Check engine light is on.

My car has 185000 miles.
My car has an automatic transmission.

Hi There, It sounds like you may have a failing cylinder head gasket allowing coolant to leak from the water passages into the cylinders resulting in the coolant being burnt in the combustion chamber with the fuel. If this is the case, you may also notice a bit of white smoke coming from your exhaust which is a product of the coolant being turned into a steam like vapor. Lots of white exhaust smoke on start up is usually a sign of a head gasket problem. If the leak is very small, or leaking into adjacent cylinders, there may not be much smoke upon starting up, and yet still enough coolant may be pulled into the combustion chamber(s) to produce a strong sweetish exhaust smell. Generally, over the long run, this particular problem will continue to produce more engine problems. I would recommend having an expert from YourMechanic come to your location to inspect your car’s running condition to determine what may be causing the smoke coming from your exhaust.

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: Car dead

Hi there. A slightly open car door will leave your dome light on causing your battery to drain. If your battery drains completely it will need to be charged by a battery charger. A jump will only work if your...

Q: How much to fix the parking break and abs

Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information simultaneously to the ABS and traction control system which are controlled by the car's ECU. When the ECU...

Q: Running really rough, not starting usually. Battery light came on. Car overheated. Headlights turn off when I put the high beams on.

Hi there. With the information given, it sounds like you accidentally put 3 bottles of Gas Heet (water / antifreeze remover) into the gas tank. There is to be only 1 bottle of Gas Heet to a full fuel tank...

Related articles

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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.