I have a 2002 mercury villager that the air conditioning blows cold for several minutes then just blows luke warm air, on and off like that. The fan in front of the radiator continues to spin at all times. Have any idea?

heater blows cold air idle chrysler 300 Questions & Answers ...

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Find solutions to your heater blows cold air idle chrysler 300 question. ... blow warmair for a few mins then back to luke warm. i replaced thermostat ... HEAT BLOWSCOLD AIR WHEN IDLING ONLY GETS HOT WHEN START DRIVING ... About 15 minutes after driving the diver side vents start blowing straight cold air but the ...

Heater only works when pressing the gas? - DoItYourself.com ...

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Nov 3, 2011 - When I press the gas, the air from the vents is nice and hot. .... So am Idriving a car with a ton of problems, or could the power steering ... Just anotherquestion, when warmed up does the engine temperature ... When the heater is on and I'm not pressing the gas pedal, luke warm air blows from the vents.

Heater blows cool air when stopped and warm air while ...

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RedditFeb 12, 2014 - Heater blows cool air when stopped and warm air while driving 2008 Kia Spectra (self. ... just fine but appears to blow cool air when I was stopped at a stoplight. ... My temp gauge would also be pegged high when at idle / low RPM. ...thermostat only blocks coolant going to the radiator, and the heater core, ...Missing: 300m ‎luke

Why is My Car AC Blowing Hot Air? - BlueDevil Products

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If it is cold in the rear, that eliminates the "freon" part of the system. (It apparently has enough freon and the compressor is apparently working.)

So that leaves you with a blend-air door problem on the front A/C unit. That may be a blend-air door actuator, a broken blend-air door, or a faulty control head. (Proper diagnosis required)

The blend door or its actuator in the rear HVAC unit (behind panel on passenger side cargo area) is either stuck or defective.

you have air trapeed in the cooling system, very common problem.

go here adnd read files.

Or go to a shop with evac/fill equipment and have them purge the air.

http://groups.yahoo.com/group/villagerquest/

air trapped. go here. need flush, evac/fill from shop with this equipment. go here

http://groups.yahoo.com/group/villagerquest/

it needs to have the rear expansion valve to be inspected for metal, if clean repl expansion valve and recharge a/c

You have air trapped in the system. If you have cold air, warm air, cold air from your heater, then it's air entrapment. Very common these days. Go to a shop that uses vacuum method to refill cooling system & that will purge air.
Otherwise, you can try. Park uphill. cold engine - fill radiator to top with 50/50 mix of antifreeze. leave cap on but loose. fill reservior to 3/4 full. Turn heater to hot to allow coolant to flow through heater core. start engine, run at 1500 rpms until thermostat opens and upper hose is hot. tighten cap and let it cool down. after cool check level of reservoir. fill to top line on reservoir. it should **** coolant back into radiator as it cools down.
repeat if still an issue.

go to yahoo group for villager quest & join owner group for much more help. 2500 members.

Sounds like you need a blower motor resistor located down under dash on pass side next to blower motor. This is a comon problem and I have changed many of them. thats just the fan speed problem. Ive seen the blend doors break easily on those jeeps. thats inside the heaer core box and moves the flap from hot air to cold air. If it is stuck halfway -or mostly to cold- you may only get luke warm air. If they had the heater core out-maybe they possibly broke it.

sounds like you a have a problem with the blend door. could be a bad blend door motor or something is stuck keeping it from moving.