Question about 1997 Mercury Mountaineer

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2003 Mercury Mountaineer no heat

I have a 2003 Mercury Mountaineer V8 AWD that the heat doesn't work in. I've replaced the thermostat but no luck. How do I get to the door that switches from cold to hot in order to replace it? Is this the next logical step in my troubleshooting?

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  • dmh761 Dec 17, 2008

    Do I need to remove the dash in order to get to it?

  • Anonymous Mar 25, 2014

    no heat all controls work

  • Anonymous Mar 26, 2014

    when i turn the car off the radio is still on

  • Anonymous Mar 29, 2014

    Read the title

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No you have to remove the vent between the hood and the windsheild its on the out side of the car it sounds like your freshair vent is stuck open

Posted on Dec 17, 2008

  • Robert Barnett Oct 02, 2011

    i removed the vent and found nothing under it but a big hole.

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  • 16 Answers

Somtimes it may be in the vents just infront of the front windshield the door could be stuck open

Posted on Dec 17, 2008

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1 Answer

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2003 mountaineer V8 Temp gauge jumps to hot not over heating. Replaced thermostat, no change


The Engine Temp. sensor is bad. it is under the intake manifold. if there is a miss also check under the coils over the spark plugs. If there is Coolant in the spark plug holes .then the intake gasket is leaking. The intake manifold needs to come off to change the coolant sensor. When off look for corrosion on the cylinder head at the coolant port. If there is corrsion then the cylinder head must be replaced.

Jan 06, 2013 | 2003 Mercury Mountaineer

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I need a new transmission in my 2004 Mercury Mountaineer V8 AWD, how much should I expect to spend?


Replacing a transmission can run $1,800-$3,500
I'm thinking closer to $2800 for you because it is a more sophisticated AWD model, perhaps more. Hope that is informative enough for you.

Please rate me, thanks!

Feb 03, 2011 | 2004 Mercury Mountaineer

1 Answer

Cold air blows out of the defrost. does the thermostat need to replaced?


Thermostat wouldn't likly cause that. You've probably got a problem with the system that controls the flap doors in the duct system for heat and AC. The flap door may be stuck in the AC position. If you have no heat in the rest of the vehicle either, the switch between heat and AC may be the problem.

Dec 27, 2010 | 2003 Mercury Mountaineer

1 Answer

Heat does not work, makes loud clicking noise when turned on...2003 Mercury Mountaineer..how do I fix this?


I have a 2003 Mountaineer that had the same symptoms. After doing some research, me and Google decided it was the Blend Door Actuator. It is a fairly difficult job due to having to take pretty much the whole dash off, but I did it myself with minimal experience. I included a few links.

http://redhouseon7th.com/redhouse/howto/2003FordExplorerBlendDoor/ (This is the guide I used.)

http://www.explorerforum.com/forums/showthread.php?t=212667

Good luck!

Oct 18, 2010 | 2003 Mercury Mountaineer

1 Answer

What, if you know, is the average life for a 5.0 V8 engine from a 1998 Mercury Mountaineer AWD (currently has 160,000 miles)


you can get 250-300k easily out of a 5.0 of the engine is properly maintained.
Thank you,
Lee

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Front differential broke in my 2003 mercury mountaineer v8 how much to fix


Depends I had a whole new used one put in for 1300...I had the front diff replaced 2x and the front driveshaft 2x a Drive shaft by shaftmaster is about 340. Some type of frame tweakage that throes it off. Always make sure you have the same tread on your Mountaineer if you have AWD.

Feb 08, 2010 | 2003 Mercury Mountaineer

1 Answer

My power windows are not working on my 2002 mercury mountaineer. Is there a part that I can get to make it work?


The power window motors on these vehicles have a cable that winds the window up and down. The cable is connected to the window regulator by a peice of plastic. When it breaks it's done. I've already replace 3 on ours. Another great ford design. Be prepared to replace the transmission if you have the v8 awd. Ours along with a lot of other people's went out under 70,000 miles. If you can... get rid of it ASAP!

Dec 09, 2009 | 2002 Mercury Mountaineer

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