Question about 1999 Ford Expedition

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My ac blows hot air from the front vents on my 199 ford expedition and the rear vents blow cold air

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Expansion valve or orfice tube clog.to front unit.

Posted on Jul 15, 2010

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Related Questions:

1 Answer

What causes the ac to blow cold in the rear but warm air in the front?


These vehicles came with 2 types of ac controls.
The vacuum control system uses vacuum to actuate the vents and ducting from hot to cold. A lot of times the HVAC vacuum line in the engine bay (black hard plastic) is either broken or disconnected from its vacuum source.
The electronic vent control: does everything at the control knob via vent actuators and the control panel itself. With this one it could be any of the components. You would have to locate them and verify operation by moving temp/vent selector.

May 08, 2014 | 1997 Ford Expedition

1 Answer

Have a 2004 ford expedition, heat will blow out rear vents but blows cold air out the front.


you need to have automatic ac and heater control checked out at a garage problem could be in the mode switch or electrical problem causing front blend door actuator not working properly.your vechicle has the EATC SYSTEM which is computer control need diagnostie equipment to fix.

Dec 11, 2011 | 2004 Ford Expedition

1 Answer

I have a 2001 expedition and the front vents blow hot air with ac on.back vents blow cold so i know its charged and compressor works.what can it be?


Check the blend doors found deep in the air duct underneath the dashboard. There may be loose linkages or the motor may not be working.

Aug 14, 2011 | 2001 Ford Expedition

1 Answer

My Air Condition is only blowing hot air in the front, but cold in the rear. Could anyone give me a start in correcting this problem? Thanks


possible blend door actuator faulty, or a faulty blend door. This door switches from hot to cold vents. On expeditions equipped with rear AC front and rear AC have seperate actuators. Hopefully this helps!!

Mar 31, 2010 | 2001 Ford Expedition

1 Answer

I have a 2006 Ford Expedition. The Air


you have a vacuum loss to the ac control head, the motors that divert air are vacuum operated, if you loose vacuum the system goes to defrost for safety reasons, the vacuum comes from the engine, then goes o a plastic vacuum tank under the hook start there, it is a 3/16 id hose.

Aug 14, 2009 | Ford Expedition Cars & Trucks

1 Answer

Have a 2000 ford expedition and the ac in the front blows hot but the rear ac works fine. what could it be


Listen and see if the vent flap is moving from the hot position, to the cold position. If that's working then the evaporator may be clogged. It sits inside the same box that the heater core is inside of and if it becomes clogged with hair or dust, then it wont allow the blower to blow through it. But it would then bring hot air through the vents because the heater core is there too.

Jun 15, 2009 | 1998 Ford Expedition

3 Answers

2004 Ford Expedition XLT, front blend door actuator


Hope I was avle to help, glad you up and going.

May 26, 2009 | 2004 Ford Expedition

1 Answer

A/c problem


You either have a bad control, or motor running the air direction door in the front HVAC unit, or a door that is stuck.

The front and rear units are totally separate.

The door directs where the air, cold or hot, should come out, whether it is panel vents, floor, defrost, or any combination of those.

This door and motor are located inside the heater box which usually requires a lot of the vehicle dash assembly to be taken apart to get to these parts.

Aug 28, 2008 | 2000 Ford Expedition

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