Question about 1997 Ford Expedition

1 Answer

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

Ac blows fine in the rear, blows warm air in the front, also you cannot change the controls as far as face, feet, defrost, its stuck on one setting

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    New Friend:

    An expert that has 1 follower.

  • Expert
  • 128 Answers

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.

Posted on May 08, 2014

  • 1 more comment 
  • C Bates
    C Bates May 08, 2014

    my husband said there is a red vacuum hose under the dash that is just hanging loosely....is there an easy to follow diagram that shows where this needs to be hooked up? Thanks!

  • Anthony Jones
    Anthony Jones May 08, 2014

    checking...

  • Anthony Jones
    Anthony Jones May 08, 2014

    to make it simple, google 1997 expedition vacuum diagram. click on the one for autozone. they have just about every diagram available for that vehicle.

×

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
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.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 142 Answers

SOURCE: 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.

Posted on Aug 28, 2008

philriden
  • 146 Answers

SOURCE: 1998 Mustang - AC blows only through Defrost vents

You probably have a vacuum leak on the passenger side. its a small plastic hose some times they come unpluged from the engine. or brake.

Posted on Jan 05, 2009

  • 4 Answers

SOURCE: defrost blows cold air

Sounds like you have a plenum door that is not opening when you go into defrost mode. You will have to check all your vacuum hoses and switching valves under the dash to see which one is not working. Hope this helps.

Posted on Jan 18, 2009

emissionwiz
  • 76846 Answers

SOURCE: heater blows cold air ac blows warm air

Your problem is the air temp control blend door actuator is defective and not controlling temp u set. to change/access this part the dash assembly must be removed from the car.

Posted on Mar 24, 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%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Passenger side blows cold air--what part could it be


2001 Chevy Tahoe Heat Problem - Tahoe Forum

www.tahoeforum.com > ... > Technical Discussions
Dec 5, 2008 - 10 posts - ‎7 authors 2001 Tahoe, the front heater blows a little hot air when the car warms up and then blows cold air. The rear heat seems to work fine. I changed ...

Rear AC blows hot air - Tahoe Forum - Chevy Tahoe Forum

www.tahoeforum.com > ... > Technical Discussions

Jul 14, 2008 - 10 posts - ‎5 authors
On my wifes 03' Yukon the rear air conditioning blows hot air no .... Pull the panel off and look at the hot/cold actuator shown in the picture.

Oct 30, 2015 | 2001 Chevrolet Tahoe

1 Answer

The rear heater blows cold air and front does not blow at all. The only place that warm air comes out, is the defroster vents on the dash by the windshield. It actually warms the entire vehicle, but n


i hadsimale problems on my taho the ac wul not blow cold n the back only the heater would blow and the front would not blow i had to chang the front blower motor and the blower motoer relay in the back every thing is on the top of the rt pass wheel hump swap them out there the same parts to see what broke hat stuf is expencive hope this helps

Oct 17, 2012 | 2004 Chevrolet Tahoe

1 Answer

1998 Ford Econoline Van E-150 Front A/C blows cold rear A/C blows warm?


Generally you would need to check the level of freon in the system, and probably the expansion valve in the rear unit. You should have one hot and one cold ac line going to each evaporator.

Aug 22, 2012 | Ford Cars & Trucks

1 Answer

Cold air up front - warm air in the rear


this could show your ac/heater is broken. if its ac it would b broken in the bak. if its heater it would b broken in front. c a repair shop for this. like jiffy lube or maaco. hope this helped.
and ask for insurance

Dec 05, 2011 | 2006 Kia Amanti

1 Answer

I live in a very hot climate, Yuma AZ. In the


It may be getting low on freon sometimes they leak out

Sep 10, 2009 | 2005 Dodge Durango

2 Answers

A/c front blower is warm, but rear blowers are fine


This is a common problem and the solution usually is that the fron thermostat is usually gone and needs replaising. Shouldn't be too much money to get done. It's just not opening up to let the cold air pass into the from area but the rear one is working fine which allows it to blow cold air.

Aug 16, 2009 | 2006 Dodge Durango

1 Answer

AC doesn't blow cold


Have the compressor tested

Jul 20, 2009 | 1999 Chevrolet Suburban

1 Answer

2002 GMC Yukon blows cold air from the front, rear works fine


check you antifreeze level and make sure its full

Jan 26, 2009 | 2002 GMC Yukon XL

Not finding what you are looking for?
1997 Ford Expedition Logo

327 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

fordexpert

Level 3 Expert

5546 Answers

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

Answer questions

Manuals & User Guides

Loading...