smoke under the hood

2007 LINCOLN MKZ
5,400,000 MILES • 6 CYL • AWD • AUTOMATIC
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DEEDEEW2
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I have a 2007 lincoln mkz, that shows a little smoke fron the drivers side coming from under the hood, and it smells of possibly the radiator or oil, i have taken to the dealership twice to be told they can't find anything. when I drive it for at least 10 to 15 minutes on the expressway and get to a light and sitting idle, I can see some smoke from time to time. It came thru the vents just recently. I can't understand why the dealer can't find anything.
Dec 15, 2010 at 4:39 PM
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MHPAUTOS
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Take it to a general mechanic, ask them to do a cooling system pressure test and check for any small oil leaks onto the exhaust system, this should find the problem, the dealer is just not interested, fairly typical these days.

mark (mhpautos)
Dec 20, 2010 at 1:00 PM
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KIM SZUJEWSKI CARPENTER
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Deedeew2 - did you ever figure out the smoke issue? My car does the same thing.
Dec 27, 2016 at 11:25 AM
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STRAILER
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Hey Kim,

This is an old post and they never got back to us on what happened. I would think the problem has to do with a leaking radiator which these cars had a big problem with.

Here is a couple of guides that should help oi fix the problem.

https://www.2carpros.com/articles/car-is-leaking-coolant

and

https://www.2carpros.com/articles/how-to-replace-a-car-radiator

Please let us know what you find so it will help others.

Best, Ken
Dec 30, 2016 at 5:45 PM