Question about 1998 Mercury Mountaineer

1 Answer

Air conditioning only works on high

My 1998 Merc Mountaineer has a problem with air conditioning. It will ony blow cool air if the right control is on max ac. Otherwise, it blows hot air on all other settings on right control.

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 163 Answers

It sounds like you have a blend door problem.

Posted on Jun 16, 2009


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 424 Answers

SOURCE: Temperature Control not working on 1999 Ford Explorer

Sounds like your temperature actuator is not moving or your temp door is broken. On max a-c ,coolant is shut off to your heater core allowing only cold air in.

Posted on Jan 26, 2009

  • 420 Answers

SOURCE: ac not blowing cold air.

Sounds like the compressor has failed.

Posted on Apr 19, 2009

SOURCE: Blower fan does not shut off and AC does not blow cold on MAX

It seems the AC switch is faulty maybe it doesn't contact the compressor wire on the MAX.
Check the switch.

Posted on May 09, 2009

  • 1392 Answers

SOURCE: My air conditioning blows hot air. Won't accept

Is the system low on Freon? If not, you most likely have a bad A/C compressor, or a bad low pressure switch.

Posted on Jun 10, 2009

  • 73 Answers

SOURCE: 1998 Ford Windstar -Front A-C blows out defrost -

bad blend door acuator in the rear unit

Posted on Jul 01, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Controls for ac not working on 1998 buick century

see this steps and fix it. God bless you

Start the car and turn the air conditioning on. Allow the engine to run a few minutes so the air can cool. Check to make sure you have the proper buttons selected. This simple step may uncover the root of the problem.

  • 2 Adjust the air controls on the dashboard to see how they are working. If the controls move the way they should with the proper amount of resistance and stopping in the right places but have effect on the air, then the problem may as simple as a blown fuse. If the controls are not working at all, then the problem is in the control panel.
  • 3 Get to the fuse box in a Ford Explorer by removing the instrument panel to the left and slightly below the steering wheel. There is a fuse remover provided in the fuse box. A blown fuse will have a broken wire in it. In a Ford Explorer, this fuse is red number 10.
  • 4 Find the control panel by prying off the top instrument panel around the air conditioning temperature controls. Unscrew four screws, one in each corner, and remove the temperature control panel. Unplug four electrical connectors and one vacuum hose to the control panel.
  • 5 Listen for the blower motor to be properly working while the engine is running and the air conditioning controls are turned to high. Adjust them from low to high to make sure the blower motor noise increases and decrease accordingly.
  • Oct 04, 2012 | 1998 Buick Century

    1 Answer

    Compressor is working allowing hot air to blow but only when on high--mechanic says possible leak and wants to put dye to find leak--so my compressor is fine? or the air wouldn't be blowing t all?

    The compressor has nothing to do with the heater box blowing air. The compressor is used to 'compress' a gas and change it to liquid and back to gas, etc to produce cooling eg air conditioning. Your system is leaking gas and dye is sometimes the only way to find a small leak.

    Aug 07, 2011 | 1998 Buick Century

    1 Answer

    Air condition won't blow cold

    Clogged ORFICE TUBE and or Low Freon Level.

    Jun 04, 2010 | 1998 Plymouth Breeze

    1 Answer

    1998 honda accord ex air conditioning not cool

    Did you check the condensor fan to make sure its working

    Apr 17, 2010 | 1998 Honda Accord

    2 Answers

    My Mercedes Benz 1998 E320 AC is cooling on one side only

    most likely u have a defective air temp control blend door actruator problem or the blend door is warped and stuck..

    Jun 26, 2009 | Mercedes-Benz E320 Cars & Trucks

    1 Answer

    Heater temp on mercury '98 mountaineer only blows hot

    Everything that is heat and cooling in a vehicle is controlled by vacuum from the engine. It appears to me that your blend door vacuum line to the temp control switch is either off or cracked/broken and not making things work the way you want/expect. It's the vacuum friend.

    Jul 01, 2017 | 1998 Mercury Mountaineer

    1 Answer

    Air conditioning blowing only highest setting but HOT air

    Sounds like your freon has leaked out and your heater blower resistor is burned out. Deffinitly take this to the dealer.

    May 20, 2009 | 2001 Honda Odyssey

    1 Answer

    '03 Merc Mountaineer humming noise when turning

    If same tires as before & air pressure set correctly, or as usual, a humming when swerving, or turning one way or the other or both, it's usually a pretty good indicator.

    Mar 06, 2009 | 2003 Mercury Mountaineer

    Not finding what you are looking for?
    1998 Mercury Mountaineer Logo

    Related Topics:

    452 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Mercury Experts


    Level 3 Expert

    76846 Answers


    Level 3 Expert

    5546 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22246 Answers

    Are you a Mercury Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides