Ford F-150 - 1997-2003 :: 1998 - A/C Blowing Cold Via Floor Or Defrost Vents?

1998 F150 XLT 4.6l automatic,,,

Drove the truck on a trip the other day, about 650 miles with a loaded 5x8 trailer in tow. A/C started acting weird. When the truck was on level ground, or going down hill, the A/C was fine. Cold air coming out the correct dash vents. As soon as I started up hill, or put the truck under strain of acceleration, the A/C would stop blowing out the dash vents and would start coming out the floor or defrost vents, or just not come out anywhere.

When I turned the A/C off and just used the vent setting, it would do the same thing with the fresh air. I guessing this has something to do with my vacuum lines, somewhere. What I should be looking for and where?

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Ford F-150 - 1997-2003 :: Truck Only Blowing Heat

I have a 97 f150 that only blows heat and I am wondering if the blendor is bad or is it something else that is causing the issiue

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Ford Super Duty (1999-2016) :: No Air Blowing Out Of Vents Or Defrost For AC Or Heat

I have a 2008 F350 and there is nothing blowing out of the vents or defrost for AC or heat. It doesn't matter what fan speed is set. Would this indicate a blower motor? Where exactly is it located and how to change?

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Ford F-150 - 1997-2003 :: Max Heat Blowing Through Vents When Temp Set On Cold

2001 F150 5.4 4wd - AC not working but when I turn the temperature dial to the blue side and turn on the fan, super hot air comes out of the vents or wherever I direct the fan to blow (Floor, defrost, etc) I know it shouldn't blow ice cold especially since my AC doesn't work but.....shouldn't I feel a temp change coming from the vents when I move temp dial from the red area to the blue? It's max heat wherever I have it set.

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Ford F-150 - 1997-2003 :: 2002 - A/C Blowing Lukewarm Heat And Semi Cold Air?

I have a 2002 f150 supercrew 5.4 liter. About mid winter my heat suddenly went from hot to lukewarm. A check of the fluids shows all is good. I use my truck solely for work so I didn't bother with it at the time. Summer is here and my AC blows kinda cold, at best. I can hear the blend door moving. The temp control does make a huge difference. It just doesn't get real cold or real hot. Not like it should.

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Ford F-150 - 1997-2003 :: Heat Started Blowing Cold / Temp Gauge Showing Lower Then Overheated

Was driving my truck I have a 97 f150 4x4 4.6L, btw. The heater started blowing cold air and I looked at the temp gauge but it was showing lower than it normally does and then, after a couple of miles or so I looked at the temp gauge again. By this time I was in my driveway. And it was overheating it might have been that way before I looked at the temp gauge again. But any way I opened the hood didn't see any leaks, all my hoses were hot except the top heater hose. Also checked the oil it was full and coolant was too, what this could be? Sounds like a t-stat to me? But could be worse. Also forgot to mention that the oil had no signs of water in there nor the expansion tank cap !

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Ford A/C :: 1997 F150 V6 - Cold Blowing Only Through Defrost Vents?

My A/C is blowing cold but only thru the defrost vents. First it was blowing normally from the dash but during acceleration or under load, the a/c would randomly blow from any vent, from the floor, dash, defrost. Now that stopped and it only blows from the defrost vents above the dash-board.

1997 F-150 XLT, 4.2 Liter, V6, manual transmission.

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Ford A/C :: 2003 - Heat Blows Only On Defrost

2003 f150 lariat FX4 5.4L ... The heater only blows on defrost, Which vacuum line controls this? is it the black one that runs through the fire wall? What else can I check to narrow the problem down? this truck has the push button/digital controls.

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Ford - Explorer :: 2003 - When Temp Changes To Hot Defrost Changes To Heat?

I have a 03 explorer and when on defrost if I turn the temp to hot it changes from defrost to heat, also if i lower the temp setting a little it goes back to defrost,this has manual heater control and I replace the control head and did not solve this issue.

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Ford - Explorer :: 2003 XLT - Heat / AC System Is Stuck In Defrost

I just picked up another 2003 XLT and I'll be taking it in for inspection on Monday. Hoping it will pass easily, but there are a couple issues I'd like to address before going in there.

First and foremost, the heat/AC system is stuck in defrost. It will turn off when the selector is moved to the OFF position, but any other position just makes the air blow out the top of the dash. I did do some research on this beforehand (the seller made me aware of it) and I first looked at the actuator. When moving between positions, the actuator does not move at all. It does appear to be connected to the vent door's arm but there's no movement when going around the dial. I do hear what seems to be a relay kick on or off as I go through the different modes, but that's it. Does this point more towards a vacuum issue?

Second, and less significant...the self-dimming rear view mirror doesn't dim. It doesn't even power on. Where might the connection go for that mirror? Would be handy to have for night driving, but not that big of a deal if it's not functioning.

I'm also going to have to get the tailpipe mounted...seems it came off at some point and the seller asked me today if I wanted it. Uh...yeah, I'm gonna need that to pass inspection!

I am liking it so far. Runs well, rides well...I will be enjoying this one as well.

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Ford 7.3L Power Stroke (1999-2003) :: A/C Only Blowing Out Defrost Vents?

As the title implies, that is my problem. Can't get the AC to come out of anywhere other than the windshield defrost vents. Y'all ever encountered this before?

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Jeep - Grandcherokee :: 2003 - A/C And Heater Control Panel Switch Is Stuck In The Windshield Defrost Setting

I have a 2003 Jeep Grand Cherokee with about 240000 miles on the clock. Words cannot describe how impressed I am by this car. However, yesterday I noticed that the selector switch where one chooses to direct the air output has failed me. It seems to be stuck in the windshield defrost setting, unable to redirect the airflow to anywhere else. I am however still able to control the temperature as well as A/C settings. The switch felt strangely 'limp' almost as though it is no longer connected to whatever engineering or witchcraft it is attached to behind the control panel. What are your thoughts on this? Could it be as simple as some mechanical linkage that has snapped off? Just to recap: blower motor, heat and A/C are not affected by this.

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Ford F-150 - 1997-2003 :: Air Conditioner Blows Though The Defrost

When going down the road, the air blows threw the defrost and on the down hill it comes back to the vent.

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Ford F-150 - 1997-2003 :: Air Conditioning Will Only Blow Through Defrost

I have a 2003 Model F150 4x4 that has always ran good for me, and has only had minor issues ever since I've had it. Not too bad considering it has 266,xxx miles on it and running 100 miles a day on the original motor & transmission.

Here's my problem - my air conditioning will only blow thru the defrost. I can hit vent on the control panel and it will blow thru the vents, but if i hit max ac it switches to defrost. It has gotten super hot around here and i really need this to work correctly. I'm not very knowledgeable about this stuff (have worked more on older vehicles) so i guess I'll need a fairly detailed reply if possible. I have looked under the hood looking for messed up vacuum lines but haven't seen any that looked bad.

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Ford F-150 - 1997-2003 :: Switches To Defrost When Step On Throttle

When I have my a/c on, every time I step on the throttle it changes where the air comes out of the vents . Under normal power the air blows out the front vents, step on the throttle and it switches to defrost , let back off and it goes back to normal.?????

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Ford F-150 - 1997-2003 :: 1998 - Air From Defrost Only - Vacuum Leak?

This has been on going for the past year. The blend works fine. Fan speed works correctly. The selection for ac, max ac, etc., will only allow air through defrost vents. Vacuum leak?

1998 4.6 auto super cab

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Camry :: 2003 - Fan Blowing But No Heat

Heater on wife's 03 Camry stopped working today. 4 cyl. Fan still blows. No heat. Troubleshooting ?

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Ford F-150 - 1997-2003 :: AC Pump Randomly Turning On When Console Is Set To Panel

I have a slightly strange problem with my Ford F-150 I know it's going down the road a couple days ago that and my air conditioning console was set to panel Suddenly the air conditioning pump will kick on. first question is there an easy way of fixing this if not is there a way that I could splice into the air conditioning console wires and possibly cut power to the pump with an addition of a switch. I have a 1997 Ford F150...

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Ford F-150 - 1997-2003 :: Instrument Panel Lights Hard To Change

My instrument panel lights are out are they hard to change ? the truck is a 1997 f-150 4x4 /4.6 liter...

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