My 06 F250 crew with the 6.0 starting blowing the cold AC out the defrost vent and will not switch to the dash vents. It's goning to hit 108 today and stay around 105 for the rest of the week.
View 14 RepliesMy husband and I have 3 Excursions, V10, 6.0, 7.3 and I have a 6.0 250 crewcab. 3 of the 4 now blow air or heat from just the defroster unless your going at a slow speed.
View 2 RepliesI have a 2000 f250 4x4 7.3 diesel. I had problems with my a/c and controls for sometime now. my a/c was blowing threw the defrost vent. I was told my blend door was bad. I bought a new blend door installed it,still doing the same thing. I was told to check my vacuum lines. I check them, they were bad. I replace my vacuum lines and my vac pump as well. that fixed my problem blowing threw the defrost vent. I can control my air flow from floor,dash vents and defrost vent. the problem I have, I not able to control my temperature when I turn my center from red to blue. It blows hot air and the air that is coming out of the vents isn't very strong at all.
View 1 RepliesMy 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.
My AC blows hot air, like heater hot, but the defrost on cold blows cold air. At first the AC would cut out at low rpm's (stop sign or red light) and cut back on, now its nothing. But the defrost blowing cold, enough to fog up the windshield, tells me its not the compressor or freon.
View 2 Replies1998 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?
I have a 2011 Hyundai Sonata 2.0 Turbo Limited and the A/C seems to only be blowing cold air from passenger vents, and on driver side "warm/ hot ". What steps or what i can do to get this fixed.
View 3 RepliesI have a 2004 GX470. Now that the weather has dropped I have noticed that my heater is taking a long time to warm up all it does is blow cold air out of the vent. Subsequently I have started to notice that they car will start to overheat. It will never get to the point where it will hit the red but it will go up and then come back down to mid range. There doesn't seem to be anything else wrong with the car, it idles fine, starts fine etc. Could these two issues be related?
View 14 RepliesI have a 1986 Monte Carlo SS with 305 HO engine. Recently when driving along suddenly I have hot air blowing out of the vents, then in a few minutes it goes back to the cool air. This happens whether it is set to vent or air conditioner. How can I fix it??
View 8 RepliesMy 08 Azera blows cold air out the drivers side vent when everything on the right sides blows heat. If I set drivers side 88 degrees it blows some warm air. I changed the cabin filter and that did not work.
View 13 RepliesSo last couple days over the 4th, the heat was over 95.
AC Blowing out of the vent is cold but the rear seats passenger feels warm.
Even with the blower on the higher and temp on the lowest 65 (or lowest setting).
I put my hand towards the rear seat and I feel warm air. Near the vents are cool but its like the AC can't keep up with the heat ?
2010 @ 51k ... 450h ...
I have to once and for all try to figure out what the heck is up with the AC and the defrost/vent switching back and forth. I have searched and searched and posted a few months back as well. But now that it's summer and 100 degrees out I've had a chance to test some more.
1 - I replaced both hoses going to the hubs up front.
2 - I am not sure how to test vacuum, but I did cap the hoses that lead to the hubs and still had the fluctuating back and forth
Looking for detail how to test for vacuum leak with a gauge directions ? What number is supposed to hold on the gauge and for how long etc...?
3 - It used to be that when I got to a high speed or RPM it would shift to defrost, but now I've noticed that once on the freeway going to work for instance and doing a constant 55-65 ( sub 2k rpm ) for about 20-25 minutes the vents hold fine. When I start to stop and go with higher RPM's it starts to 'break down' again. Could it be that there is a vacuum canister or pump ? I don't know ?? The diesels have a vac pump - do the V10's ? What can I check if there is no vacuum leak - what's next ?
I've got a couple different problems. The first one is that no matter what setting I have it on, air only blows out of the defrost vent.. Why this is happening? or is there already a thread about this? i saw a thread for this same problem, but it was for 2nd gen explorers.
The second problem I have is that there always seems to be air blowing from some where on the passenger side, unless i am accelerating. I can't seem to find where it is coming from but it makes a really annoying noise.
It is the 4.6L, AWD. not sure if that matters or not though.
On my 2003 GX 470 w/ 135,000 I have an issue that I can't figure out how to resolve.
The driver side lets out hot heat and the passenger side lets out cold air. I have the dual climate control and both sides are at MAX HEAT with the blower on HIGH. I have 2 vents for each the passenger and the driver.
The left side of steering wheel vent is allowing max heat. the right side of steering wheel vent lets out warm air. Not as hot as left side but warm. On the passenger side, its only letting out cold air and gets colder if I lower the temp on the climate control for right side.
Engine coolant is full, no lights on dash. Blower motor sounds like its working fine.
is there an way to remove the defrost vent covers? i think my license slid down the front of the defrost covers. its probably somewhere down under the dash. I would like to start removing the covers up top before I yank the dash. I am 1400 miles from home so I cant run and get a replacement.
View 6 RepliesMy 2006, King Ranch, 4x4, 6.0's air conditioner only blows from the defrost vent. I have done some research on here, but haven't seen anything that identifies as a common problem. I did however, notice that this problem is stemming from a vacuum issue.
View 10 RepliesMy buddy has a 97 f350 with a 460. When he accelerates his HVAC changes from vent to defrost then back when the desired speed is reached. What can be causing this?
View 1 RepliesMy 99' started o blow air only through the defrost vent today, and won't go through any of the other vents. I think this happens when your vacuum pump goes bad or there is a leak, correct? If so, how can I test these to figure out the problem.
View 2 Replies2006 F250 5.4 - While driving ac changes from vent to defrost on it own..let off gas and it will change back to vent. I replaced vacuum can under hood.. no luck.....
View 1 RepliesThere is always something.... I just drove my girlfriend's new 2003 ranger edge home from the seller. Real nice truck. I noticed the heater selector doesn't change the air flow. It is on full blast for the defrosters, and is also trickling out of the floor and dash vents. No matter where you put the selector, thats the only place the air comes out.
The temp control seem to work OK, when you turn it on cold, you get cold air and visa versa. Even on AC and MAx AC... air out the defrosters. It's cold when you turn the temp control to cold.
I did some searching here and gather some info on checking the vac lines etc. Everything looks in place but one detail. The vac ball under the hood under the air box has 2 ports on the front end, and only one grey line going into it. The other port has what looks like a rubber boot and part of a very short vac line broken off it.
I looked, I cant find any loose vac lines. I'd like to know if this second port is suppose to have a second line on it, and where does it go? What color is it? Is this the reason the vent selector isnt working?
I have a 2012 F-350 SRW with a 6.7 diesel. The other day I went to push the defrost switch and noticed it does not work. All the lights work in the switches, and the temp control works, but no matter what I push, defrost or floor, it stay in the vent only. Anything I can check??
View 1 Replies