Question about 2005 Mercury Mountaineer

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OVERHEATING 2005 MERCURY MOUNTAINEER 4.O

LOOSING COOLANT FROM THE OVERFLOW BOTTLE CAP

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  • Mercury Master
  • 21,873 Answers

Does the gauge show the engine running hot ?
Could be several things including a faulty fan, water pump, thermostat, or other blockage in the system.

Posted on Dec 06, 2012

  • CHRIS Dec 06, 2012

    THE GAUGE IS PEGGED ON HOT. IT HAS A CLUTCHFAN THAT IS WORKING AND I ALSO CHANGED THE THERMOSTAT BUT STILL HAVING THE SAME ISSUES

  •  Stephen
    Stephen Dec 06, 2012

    I am assuming you mean the gauge is pegged after the engine runs for 5 or 10 min. If it was pegged right after starting the engine I would say the gauge is faulty. If the engine is overheating within a few min you could have a faulty water pump or other blockage.

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Posted on Jan 02, 2017

warlock61
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SOURCE: 2003 Mercury Mountaineer with 4.6L is loosing

dont know of any head gasket concerns, usually when the intake manifold leaks it either split and pours out or the heater hose fittings crack and leak. Check the hose connections at the intake and make sure none of the hose clamps have cracked and are leaking

Posted on Mar 01, 2009

  • 5467 Answers

SOURCE: 2005 Mercury Mountaineer rear end whine, how hard to fix

Before you do this you might want to try fresh gear lube. On Ford products they use a synthetic additive in the rear and not in the front 4x4 axle.
The next thing would be to determine if it is a wheel bearing or a pinion bearing. You have to pull the axles and eliminate them as the problem. You might get lucky and not need to do the pinion.
The technical part of shimming the pinion gears with replacing the pinion bearing is about the worst part of the job. You won't know about the gears until you see them. You will need extra shims on hand.
It is a moderate job for two people. If you have all the parts it can be done in a day.

Posted on Aug 23, 2009

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CMV9
  • 594 Answers

SOURCE: where is 2005 mercury mountaineer fuel filter

Fuel filters can usually be found on the drivers side under carriage about middle of the vehicle. There should be a canister type filter with 2 metal lines connected to it. One on both sides of the canister. you will need to disconnect both lines and the bracket that holds the filter in place and install the new filter. I do suggest that you remove the fuel cap to try and relieve some of the fuel pressure built up in the lines before disconnecting the filter so you won't be sprayed too much with fuel. If you have any other questions please do not hestitate to ask.

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Posted on Dec 27, 2009

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Molson02536
  • 3854 Answers

SOURCE: where is the fuel filter on 2005 mercury

It's behind the back right tire if I remember correctly. you have to have the car lifted to get to it. It is mounted directly in front of the fuel tank, on the passenger side, there is an aluminum heat shield with (3) 13mm bolts that need to be removed, then there is a plastic shield with (2) 10mm nuts that needs to be removed, the fuel filter can then be removed, it snaps into a bracket that is secured by the same (2) 10 mm nuts holding the plastic shield.

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Posted on Jun 09, 2010

  • 38 Answers

SOURCE: 2005 mercury mountaineer with rearend whine, seals

bearings need to be replaced before they fail which could be very costly.

Posted on Jul 20, 2010

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This is a guess. Replace the radiator cap and the hose connecting the radiator to the coolant reservoir. Then fill the radiator, engine, and heater hoses completely with antifreeze solution.

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It's on the overflow bottle on passenger side under hood.no longer part of radiator

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OVERHEATING

Physically look in the radiator under the cap when cool, for coolant level, and check the valve in the cap for sticking. If air is present in the radiator it can't get out, and more coolant can't get in,(from the overflow). Either clean the cap or replace it and check that it is the CORRECT cap.

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Air dam under front bumper is gone, loose, or broken. It actually has a purpose other than scraping on the driveway or curbs. It forces air up into and thru the condenser and radiator. If it's loose, airflow can actually push it out of place making it useless or blocking the airflow. Along with that, there may also be a plastic piece attached to the bottom of, and wraps up behind the bumper. If it

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