Question about 2003 Mercury Mountaineer

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Where is a fuel filter located on a 2002 mercury mountaineer My car is slugish when it is stopped at a stop sign could this help if i change the fuel filter

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Here's a step by step, with photos, on how to replace an Explorer fuel filter. The Mountaineer should be exactly the same. The problem you describe can be attributed to the fuel filter. Good luck.

Posted on Sep 30, 2009

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Mercury Mountaineer fuel filter is located in front and on top of fuel tank behind two shields. This is for 4.0L 2 wheel drive. When you look just behind the front passenger side tire you will see the first shield. Behind that is the second, I dobt its the fuel filter althought its good ideas to have it replace every 50-75k. check plugs, coil and wires and air filter. Injectors can be clog, go down to auto parts store and pick up a fuel injector cleaners and fill up the tank with 93 octane and add that fuel injectors cleaner additive with it and see if that help some. I know fuel are high now days, I always have use 93 or higher in all of my cars especially V6 and V8, I rather spend 10 to 15 cent per gallon more for higher octain. Car run better and keep those injectors and the valves lot cleaner using higher octane.

Posted on Sep 30, 2009

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I have a 99 mercury mountaineer and it ran out of gas after I put gas in it its like the truck just won't kick thegears ovr do u think I need a new fuel filter or a whole fuel tank


Your problem may be one of the following:
First check or just replace the fuel filter. Usually located under the car in front of the rear axle, drivers side.
Next, the fuel pump may be worn out. Usually they just stop working (running).
Next, check the fuel pressure regulator. Usually located on the front fuel rail, drivers side.
Is the vacuum line attached? Not leaking or rotted?

You dont need another fuel tank. Running a vehicle out of gas allows any trash or goo to get in the fuel system. Trash mostly is trapped at the pump inlet screen and in the filter. GOO can make its way into the injectors. Throw in a bottle of injector cleaner. A sure indication of a bad fuel pump is an audible constant change in rpm's. It sounds like it's changing gears.

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2 Answers

Where is the fuel filter located on a 2004 mercury mountaineer


Hello, 2004 Mercury Mountaineer fuel filter is located in front and on top of fuel tank behind two shields. This is for 4.0L 2 wheel drive. When you look just behind the front passenger side tire you will see the first shield. Behind that is the second.

Thanks

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Mercury Mountaineer fuel filter is located in front and on top of fuel tank behind two shields. . When you look just behind the front passenger side tire you will see the first shield. Behind that is the second. U will need to buy the fuel line release tools to get the lines off the filter, any good auto parts store will have these.

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I am having the same problem. Changed the pressure switch and that didnt help.

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