Question about 2010 Mercury Milan

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Recently my check engine light came on. Shortly after that I noticed that my car was leaking fluid. Since then, other problems like dying while driving and problems turning over have occurred.

The fluid is leaking from under the engine and towards the back end of the car. The car sometimes has a tendency to shake. When it does, the car tends to die when I come to a complete stop. As long as I keep rolling a little bit it's fine. After I pull over and put her in park, she starts right up like nothing happened. Without fail anytime I get gas I have problems starting the car. It can take up to 3-5 times to start the vehicle. These problems have been occurring for a few weeks now. I'm a college student and haven't had any spare time between working and going to school full time to get it into my mechanic. I'm finally getting it in and wondering how bad it is...

Posted by Anonymous on


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  • 239 Answers

Any check engine lights. As far as the liquid leaking what type of fluid is it. Could be a coil pack that is going bad. Could be O2 sensor problems. Could be maf sensor, tps or iac sensor. See if you can get the vehicle scanned and update this with the codes

Posted on Apr 16, 2015

Testimonial: "I know nothing about cars. What does all of that mean?"

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  • Nick Tumolo Apr 16, 2015

    Well basically your vehicle has a computer that scans your vehicle while it is running. When it receives an error it illuminates a check engine light. If your vehicles light is on it will need to be diagnosed to find the problem. Sounds to mean or will be a very simple repair and shouldn't be bad. Your mechanic will probably find the problem in less than 30 mins and have it repaired in an hour.

  • Nick Tumolo Apr 16, 2015

    Sounds to mean or will be a very simple repair and shouldn't be bad. Typo.

  • Nick Tumolo Apr 16, 2015

    Sounds like it will be a simple fix to me and shouldn't be to bad. Sorry for the typos



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Two possible sensors could be affecting it like the TPS or MAF sensor. The Throttle Position Sensor (TPS) might have a bad spot where the ECM won't get signal properly and causes the RPM to fluctuate

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This Vehicle needs an Idle air control/Idle speed motor. Good Luck

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I'd be looking at the idle air control valve on side of throttle body. It regulates idle under load conditions such as when turning, AC on, heater etc, brakes applied etc, & steps idle up to maintain proper idle.When this goes faulty it lots of times doesn't send a code. You may get away with just pulling it off and cleaning plunger & port it comes out of with throttle body spray cleaner,It's worth a try before you replace.

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O2 sensor will not shut the engine down. You're going to need to have this checked out. Code test & physical inspection.

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Sounds like your gas guage isn't accurate. A fuel pump is not designed to draw fuel from the tank until it is completly dry. This is to avoid sucking up all the debris on the bottom of the tank.

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