Having problems with your 1999 Ford Expedition ?

Within the past year I had the heater coil replaced and the blender door because I had heat in the back but not heat in the front.. Afterwards I had heat and air for a few months only. Now I only have a little heat coming from the tiny vents at the top of the vent but nothing coming from the vents.No heat either. Cold air in the back. Also I only get the tiny bit of heat after it has idled for 15-20 min.

Posted / edited by AnonymousUser on : 15-01-2018

Answers :

It sounds like the blend door motor is failing or is stuck. You could go to mitchell1diy online to diagnose this and for the instructions to remove the dash. Plan on spending a day or two on this if you have never taken a dash out before.
You might want to have the temperature door actuator checked and make sure it is actually moving.Also check the heater hoses and make sure they are both hot to the touch.If only one is hot then you need to replace the heater core.If they are both hot then your problem is in the temp.actuator or the control head itself.You could have codes checked in the hvac control module.This could give you an indication of what is causing the problem.If there is a door or actuator that is not performing correctly there should be a code in the module.Not all service shops have the scan tool that will read the hvac module codes.This will not turn on any lights.Hope this helps.Good luck.Let me know if you need any more help.
Repair Help & Product Troubleshooting for 1999 Ford Expedition

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Within the past year I had the heater coil replaced and the blender door because I had heat in the back but not heat in the front.. Afterwards I had heat and air for a few months only. Now I only have a little heat coming from the tiny vents at the top of the vent but nothing coming from the vents.No heat either. Cold air in the back. Also I only get the tiny bit of heat after it has idled for 15-20 min.

It sounds like the blend door motor is failing or is stuck. You could go to mitchell1diy online to diagnose this and for the instructions to remove the dash. Plan on spending a day or two on this if you have never taken a dash out before. ... 1999 Ford Expedition

The steps please to remove the heater blower motor on a 1995 Park Ave. The check engine light comes on readily when driving or idling. The numerical external temperature/heater temperature setting somethime flash. The bower quits blowing but will randomily restart blowing heat on its own. Occasionally cool air will come out instead of heated air. Sometimes the heater will not come on and blow warm air at all. Sometimes the blower pulsates on strongly for a few minutes then backs off. The temp

Disconnect the negative battery cable. \012Disconnect the blower motor lead connector from the wiring harness connector. \012Remove the blower motor cooling tube from the blower motor. \012 ... 1995 Buick Park Avenue

AC was weak so had it recharged. Everything was fine for the rest of the day. Next morning I started the car, turned on the AC, was putting junior into his carseat when the AC quit. I turned it off then back on several times and the fans would come on then go off. Then nothing. And I mean nothing, no lights on the control panel, no fans, nothing on heat or air. I tried for a week, checking connections, testing fuses, nothing. Then I drove it out to my sons house, about 30 miles. On the way back

Read the owner manual to see how the auto works. try the defrost mode whcih is a fail safe mode and should always come on unless a major system issue. ... 1988 Jaguar XJ6

Heating problem my heater only works when the car is moving and works best on the highway. i have brought it to my mechanic 3 times or so now and he fixes it each time but then after about 2 weeks it fail again and goes back to the same problem; blowing out cool air when the car is on but idle, and when i move it warms up. even if i am moving a great deal say 20 min on highway it gets nice and warm but once i get off the highway and come to red light or stop somewhere it goes back to cool air. i

I've had that problem with a customers car before, but I changed the water pump, and it seemed to fix it. A lot of times the water pump, can't pump fast enough when it's at idle. Try it. ... 1994 BMW 3 Series

Heat not working on 98 gmc jimmy. Replaced thermostat, checked fluids. Blows air but no heat. Have automatic temp controls and when put on auto nothing at all comes through vents but if put back to manual then cold air blows out, Replaced actuator this summer, could that have messed something up? How can I flush the heater core?

Flushing the heater core is fairly easy just remove the 2 hoses going to the heater core and use a different hose if you have to and use a garden hose to backflush the blockage out..this may take as much as 5-6 times also check for vacumn lines miss ... 1998 GMC Jimmy

I have a 2000 Lincoln LS. I replaced the motor over a year ago. I had to take my car back to the garage after having the motor replaces because I had no heat or air. Come to find out, they never hooked it back up. I have never had cold air since. The heat works fine. No matter what setting I use the air almost always comes at the windshield. It does sometimes come out the vents on the dash but rarely. When it is coming out the vent in the dash, if I turn a corner or give it gas or let off the ga

Sounds like a faulty mode door actuator for the a/c in the dash. There are a series of mode doors that controls air temperature and air flow. They are located in the passenger side of the dash. If the temperature mode door isn't closing all the wa ... 2000 Lincoln LS

My '03 Buick Century heater won't work--it started off not warming up fast, then quit working on the low blower settings, then would shut off completely if you hit a bump and come back on when you hit another bump. Now nothing at all--no air, defrost, heat, nothing!

Thermostat or bleed cooling system ... 2003 Buick Century

I have an 02 trailblazer just had the cooling fan replaced in now i have an airconditioning ad heating problem when i go to turn on my ac or heater nothing comes out of the vents what could be wrong but before i got the fan clutch done it worked on level 3 not level 1 or level 2 but now it doesnt work at all wen i go to turn it on my car gives off this sound like it idling up then down alot but no air coming out the vents but when i donot turn i on my car runs just fine


Air conditioner/heat The air and heat will only come out of the defroster and nothing else. The back seat panels work too.

I have had ductwork under the dash come undone and cause this-depending on your vehicle, the ducting to your face/feet vents may snap into place. Also the switch that directs the air may not be working, or just not directing to those vents for some ... 2000 Ford Explorer

When I turn the ignition all lights come on, radio works, air and heat work, everything is like normal except nothing happens. No winding sound, no starter engaging nothing just a click and it only makes that noise once not a continuous clicking. It did this one time before about 5 days ago and when I came back to it after it sat for an hour or so it started right away and have had no problems until now. I am guessing the starter is going bad or maybe an electrical problem.

Check the connections at the battery they need to be tight and clean. the starter draws alot more amperage than any other electrical componets. if all connectios are good than it sounds like the starter is bad ... 1998 Buick LeSabre

I have a '91 executive series lincoln towncar. When the car is at idle the heat and vent air fan works fine . However, when you step on the gas theres a horrible screaching sound and some smoke, the power steering doesn't work and the alternator light comes on. I got under the hood while this was going on, and the belt wasn't turning or slipping that I can tell. once the fan was turned off everything went back to normal.

Sounds like the a/c compressor pully is locking up ... 1991 Lincoln Town Car

Cold temp light on and no heat (lukewarm) while driving. Heater works after idling for few minutes and cold temp light on dashboard goes out. When start driving again, lukewarm air from vents instead of warm and cold temp light comes back on. Radiator is full and I filled overflow from "low" to full and still happens. Fan works fine on all settings.

Could be thermostat needs to be replaced. ... 2008 Hyundai Accent 1.6

Overheating. Ok I have a 2001 Infiniti I30.It has 80,000 miles now. The problem started when I noticed there was coolant coming out of the air vents into the cabin. Everything was fine. The car didn't overheat or anything. The A/C was cold. Absolutely nothing wrong. I took it to get it diagnosed and was told I had to replace the HEATER CORE since it was leaking. I managed to replace it myself. But now the car is over heating with and without the A/C on. I am positive everything was put back exac

1.\015\012\015\012Drain the coolant so its level is below the thermostat.\015\012\015\012\015\012\015\0122.\015\012\015\012Remove the inlet fitting and gasket.\015\012\015\012\015\012\015\0123 ... Hyundai Motor 2004 Sonata

Temperature gage registers from cold to normal and back to cold during highway driving. The temp registers cold for the first 20 minutes of highway driving and then it may reach normal then goes back to cold. While this is going on there is no heat coming from the air vents regarless of the selected position. The fan blows but it is cold air. The only heat is a very slight amount coming from the vents but not enough to warm the car. I checked the water hose from the radiator to the engine and it

HI. Generally, the issue will be with the water pump. The pump is the Principal device , that moves the fluid(coolant), through the engine block. Essentially, this pump can fail mechanically, due to a damaged bearing assembly, or a detached im ... 1998 Ford Windstar

I just purchase a USED 1991 Cadillac Deville Sadan. I noticed that this evening was I was driving on the freeway, my "Check Engine Soon" stayed on longer than usual. A few days ago it would come and and go. What does this mean? Another thing, the air conditoner and heater doesn't work. However, I feel heat coming from the bottom (feet are) when I'm driving, and the back passengers feel heat coming from the small heating vents at the back seats. What the problem here?

There is no way to know what the problem is if you have no idea on how to test things. Being a used car your going to need a professional to look at this since you have several problems happening. We can guess but still you will not get any input on ... Cadillac DeVille

I got a 05 maxima. when i drive with the heat on its fine but when ever i come to a stop sign, red light, or simply let off the gas the heat turns into cold air. when i take back off the heat comes back. my dad thinks its the water pump but hes not sure. any help?

Make sure that you have enough coolant insido of the radiator. start there. ... 1989 Nissan Maxima

I am having heater issues.... it works great driving down the road but when im idling the heat turns to cold. after giving it some gas for a few seconds the heat comes back but after about 10 seconds of idling the heat turns back to cold again. any idea what could be causing this?

There could be several causes for this.The first thing I would check is to make certain that the coolant level if filled properly. Low coolant levels can contribute to this, at idle the coolant will not be circulating properly leading to not en ... 2001 Chevrolet Blazer

I have a 1998 Ford Escort Sedan and i do not have any heat for the inside of the car. When i turn on the heat NOTHING comes out (no cold/hot air) no blowing of air - nothing. I did have my car radiator flushed out about 10 days ago and the heat did blow for seven days and then it went out again. Please advise. I am in Cincinnati, Ohio and I am driving in the bitter cold weather. Thank you.

If you have no air blowing at all. Then you need to check the blower motor. ... Ford Escort

2005 Nissan Xterra Air Conditioner Problem. Worked fine all summer then all the sudden I can not get my AC switch to come on. If I put the climate control switch to MAX and turn the blower switch to possition "1" the AC & Recirc Air lights comes on but the blower does not come on. If I quickly turn the blower switch to 3 or 4 I get a blast of cool air for about a second but the lights AC & Recirc go off and the AC light will not come back on when pressed. Heat seems to work fine except when the

... 2004 Nissan XTerra

94 olds achieva 6 cyl coolant problem: after startup water temp keeps rising past 195 degrees; as it does i instantly lose my heat. temp will get up to 40 then it drops back to 185 and when this happens my heat comes back hot. it will go thru this cycle 3 or 4 times and each time the temp wont go quite as high and finally runs at a normal tempature. i changed the thermostat, flushed the system and bled out the air ( it seems like air in the system )

A few things come to mind from reading your problem, first your right about the air, it could still have some in it, i know from experance they can be a bear to get all out. secound if your sure you got all air out, the only other thing it could be i ... 1994 Oldsmobile Achieva Special Edition

2003 dodge stratus will have intermittent heat. Sometimes it will have heat when driving, then stop shut off vehicle come back to it after 10 or so minutes and after driving there will only be cold air coming out vents, even after vehicle is warmed up enought still no hot air

The thermos stat needs to be replaced...Hope this helps. ... 2003 Dodge Stratus

I have a 1996 Honda civic hatchback the heat in my car randomly stopped working. The heat worked all throw the winter when I went to try the a/c it also worked. I then went to put the heat back on and all that comes out is cold air. Like it thinks I still have it on cool air rather than warm. With or without the a/c on the air still cool/cold not warm/hot

... Cars & Trucks

09 Pontiac g5 over heats while sitting at idle cooling fans not working they come on with the ac which is normal and after you turn the ac off they will stay on until engine cools back down and they shut off again which once again is normal operation. But when the engine temp starts to climb back over 196* they will not come back on until you turn the ac back on. I have moved the relays around to see if maybe a faulty relay is to blame but nada. Next step i would think is test the Ect sensor. Ho

Try testing the fan switch,some models have a fan sw. and a coolant temp. sensor and some just use one or the other.The fan sw.should be in the side of the radiator either a single wire or two.Coolant temp.sensor should be located in the thermostat h ... 2009 Pontiac G5

Climate control i put a stereo in my 2002 spectra and the heat does not work now. I know how to put a stereo in properly so that has nothing to do with it. You can hear the air when you turn the knob to make it come out but you cant feel the air at all. And there is no hot air coming out only cold air by your feet.

Probably you knockuot the air tube when you put back the radio ... 2002 Kia Spectra

I cleaned my air intake with an air intake cleaner. I put everything back together except the tube coming from my mass air flow unit to my right side valve cover and put about 100 miles on it. It now is idled up very high. My truck is a 98 chevy z71 with a 5.7 Did i harm my idle air control?

When you put the tube back on does it still idle high? it seems like you have a vacuum leak somewhere ... 1998 Chevrolet C1500
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 3.2252 seconds