1999 Villager: My 1999 mercury villager ac works in the front but...

Without knowing the car or the ac layout my first instinct is an air lock. Be careful when trying to bleed air from the system as there is a danger of being scalded

go here for help

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

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

You are low on refrigerant, probably one pound. Ad a can of R134a

I would check the vacuums under the hood going to the firewall,make sure the vacuum is continual ,look for colasped vacuum lies,or broken vacuum lines,or a check valve in a vacuum line that is near the firewall that is broken or not working.

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

If it is factory Ford/Motocraft motor, it has an arrow on it for direction of rotation. Pull the hose off the motor and see if air blows out of it. It cools the bearing on the motor. If air comes out, dircetion is ok. Report back

you have air trapped in the heater cores, front and back. You need to burp system or take to a shop and have them flush cooling system and use their vacuum system to purge the air. Should cost $60. Make sure they have vacuum system.

Or go to our site and read file on how to burp air from cooling system.

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

yes hi you guys was right about the resistor needed to be clean with some alcohol and it work out reaaly good and the blower stort blowing , full ac/ haet all are working thanks fixya

yes it sounds to me like the thermostat control on the dash is malfuctioning. either that or heater control valve under the dash that converts the flow of air around or through the heater core could be stuck in heater mode. hope this helps. i dont know your financial situation but if it was me i would aquire one from a salvage yard in order to test because that part is quiet expensive from the dealer

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.