Question about 2003 Ford Expedition

1 Answer

With A/C selected to vents the air cycles between vents and defrost on windsheild.

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers

There is a flapper inside the duct work behind the dash that is getting stuck or has a bad connection. It is cycling back and forth, re-routing the air flow. It is not an easy fix and should be referred to a professional!

Posted on Aug 05, 2010

Ad

1 Suggested Answer

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Air con automaticaly turn on when you switch the blow postion to the windscreen position.


its supposed to come on when you select that position because actually thats the defrost for the windsheild so iit shoots out high select medium for it to blow through vents

Jun 12, 2010 | 2002 Jaguar X-Type

1 Answer

2001 dodge durango windsheild defrost stays on the vent wont switch


There is 1 of 2 possible things that cause this. 1 there is a vacuum line loose or damaged. It will be coming through the fire wall. 2 the vent select / temperature control unit is defective.

Jun 13, 2010 | 2001 Dodge Durango

1 Answer

The AC air comes out defrost sometimes and comes


what position is the control switch in? does this occur when accelerating?

the door that directs air flow is controled by a vacuum motor. the default position for the door directs air flow to the defrost vents in the event of vacuum loss to ensure the windsheild will be clear of mist. if there is a small leak, vacuum will temporarily be removed when accellerating and the motor will revert to the default position. there are vacuum lines from the control knob to the motor you must check these lines for leaks. the diaphram in the motor may be bad. also check the main vacuum supply line to the control knob. usually red in color. if there is a vacuum storage cannister. it may be leaking. this cannister will maintain vacuum for the circuit when accellerating. engine vacuum decreases when accellerating.

May 31, 2010 | 2004 Ford F150

1 Answer

Heat and air only come out defrost on windsheild not vent or floor


The air handlers on jeep are powered by engine vaccum and when a loss of vaccum happens the air is defaulted to defrost,so under the hood on passenger side is a 1/8 small black plastic line should be plugged into a bigger rubber or plastic vaccum line sometimes after a few years the rubber boots the use get soft and washing the engine or just moving things around can unhook the small line

Sep 26, 2009 | 2004 Jeep Grand Cherokee

1 Answer

When I turn my vent selector to defrost on the far right (air con off)the air conditioning comes on. The dash vents will blow ambient air, but defrost setting blows air con. Any ideas?


It's normal for the A/C compressor to come on with the defroster to dehumidify the air so the windsheild won't fog up under humid conditions. You can still control the air temp. out the vents with the temp. select switch.

Jul 19, 2009 | 2005 Jeep Wrangler

1 Answer

Heat wont blow through heater or defroster vents


common problem, check under dash by the gas pedal if control arms are muving went selecting from ac to heat cuz this it is the control for the vents to go from ac to heat and to defrost.

Jan 18, 2009 | 1997 Chevrolet K1500

1 Answer

Air conditioner staying on...


Many cars use air conditioning as part of the defrost function. Cold air will clear windshield faster than hot air.

Aug 01, 2008 | 2001 Honda Civic

1 Answer

Air does not come out the front vents only the defrost vent


This happened to me as well. These vents are controlled by vacuum. The vacuum hose beneath the passenger side cowl is probably disconnected. It is behind the engine just below the passengerside windsheild wiper. I would look for disconnected vacuum hoses. That fixed mine.

Jul 23, 2008 | 1999 Ford Windstar

Not finding what you are looking for?
2003 Ford Expedition Logo

103 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76109 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

fordexpert

Level 3 Expert

5520 Answers

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

Answer questions

Manuals & User Guides

Loading...