ac only blows through defrost vents

No matter what position the dial is on the air refuses to blow through the front vents for the driver and passenger. AC only comes through the defrost and floor, and heat always comes out the floor vents all the time.....wierd Richard I don't want any superpowers, just diplomatic immunity - … If you have air flowing only through the vents with no defrost or floor, this door is failing. It sometimes blows regularly when I have the AC on low. My 2004 F350 diesel started blowing air out of the defrost vents only. Under heavy acceleration or engine load, the unit stops 2001 Ram 2500 QCLB 4x4 Auto. I have a 2000 Winnebago Adventurer on the Ford F53 chassis that will not distribute the AC air out the dash vents.....only sends it out through the defrost vents. A/C blows through Defrost vents. After re-installing it I found my AC was only blowing through the top vents. How do I determine what the cause is? It doesn't matter which vents are chosen in control. What could have caused this? (defrost, upper dash, feet) I only get air coming out of the defrost vents....and of course in the off position everything is off. How do I reconnect or fix the vents so the ac blows through where it is supposed to? My 2006 Mercury Grand Marquis only blows air through the defrost vents. Is there anyway to upgrade the in-dash unit to allow you to turn on and off the AC compressor while independently selecting, floor, foor / vent Jun 15 2013, 9:35pm I discovered today that I only receive air through the defrost vents. IF your car uses vacuum for mode control, check the line that comes from the throttlebody or intake manifold to the upper passenger side of the firewall - a vacuum control line. AC blows cold air through defrost vents only but will not come out dash vents. If it's only working on setting 4, and NOT on 1/2/3 then you need to replace your Blower Motor Resistor. I'm wondering if something is simply stuck or if it's a bigger issue? The air (heat and A/C) only blows through the defrost vents but not the main vents. The A/C blows ice cold, but I'm getting most air flow from defroster vents at base of windshield. I have tried replacing the console in the middle of the dash that physically controls those things as well as the fuses and blower motor relays as well. I assume it's a vacuum line that probably got disconnected. Re: 01 - AC issue - blows out of defroster Tell him you have a vacuum leak on your HVAC system, if your lucky it's under the hood, if your not it's in the dash. Mode Door 2: When mode door 1 is set to divert air away from the vents and into the second stage of the system, door #2 chooses whether air I just need to know where to look and what to look for. I have a 1998 Windstar thats A/C blows cold as ice. It started with my AC not working while I was at a stand still, say in traffic. I have a 2006 pt cruiser and the ac works fine but only blows through the top vents (defrost) it dont matter where i put the knob at it only blows through the defrost on top i can turn it to blow through vents in front or bottom by legs In every position, from 'vent' to 'AC' to 'Max' it blows out of the top defrost vents. I have a 2004 GMC Sierra 1500 with the duel climate control A/C. tried to change it to the floor or the dash vents, no deal. A small amount from side vent and little to none in the center dash vents. For both of these options the AC only blows through the dash vents. 2003 durango air vents only on defog I'm having a similar problem with my 2003 durago slt. Before replacing Heater Control Unit, it would only blow hot air from front vents- With this replacement it will now change from cold to hot and the air flow pressure does change from the front vents when changing the setting dial but there is still no air at all to feet and defrost. Is it a vacuum leak or what? Found this post, ordered the pump online at www.ford-parts.com for $95 plus $8 shipping, it … Fan motor works fine, Tem switch works fine, but the other is stuck blowing out in defrost no mater which vent you turn to. All pointing to fuse #28. It started to do this ever since I got the intake manifold replaced.I have got it checked by a trusted mechanic and he said the lines are good. Bring the vehicle to a Actuator works fine. Fan Only Blows Defrost, Won't Change To Floor Or Vent. In my experience any Ford vehicle with Air conditioning uses vacuum to change the vents, anytime there is a leak or ina diesel the electric vacuum pump quits they always default to the defroster. I checked the fuses, and was at a loss after that. AC and Max AC. The air conditioning works but only blows out the defogger near the windshield. Won't switch to floor Or foot vents . The Heat/AC in my car is only blowing through the vents under the windshield (The ones that would come on only if you turned it to defrost), but no matter what setting I turn the dials to, it won't come out the main cabin Ac will not blow through center dash vents. 2003 taurus: ac only blows thru defrost vents 3.0 v6..hose 2003 taurus ac only blows thru defrost vents 3.0 v6? I just got into a car accident yesterday and got an auto body shop to look at the damages. If anyone has had this happen before I would appreciate some help because I do not know how to fix this problem. One problem, it only blows through the Defrost vents not the vents in the dash. But about a week ago air just stopped coming out of all the vents and would only come out of the defroster vents. Re: AC/Heat Only Blows out Dash Vents Post by dmoto » Tue Dec 10, 2019 7:55 pm Having the same problem, regardless of the position selected, air will only flow through dash registers. My '95 GT's A/C now only blows throught the defrost vents. Cooling, Heating, Ventilation & A/C - Air conditioning blowing only thru defrost vents - My A/C is blowing cold but only thru the defrost vents. Fuse chart shows # 28 which serves the back-up lamps too, which are not working. Had this happen before, vacuum line leak on the SOF 4x4 system. If it's working on 1/2/3 for a little while, and it varies how hard the air comes out of the vents, then the Blower Motor Fuse good. Vacuum Pump (Source on Diesels) has no power to it. RE: AC/heater only blows out defrost vents IP: Logged Message: I have a 2002 Dodge Dakota - 3.9 L and in June of 2007 I had only air coming out of my defrost vents, so I had the vent control motor replaced and it was working My AC is only blowing through the defrost vent and the temperature control doesn't do anything. So not really jeep savvy yet and trying to figure out why when I cycle through all the heater options i.e. AC Only Comming Out Defrost Vents Quote Post by islandtuner242 » Sat Jan 22, 2011 1:07 pm Ok i've got a 1990 n/a that's only blowing out of the defrost vents and no other ones can anybody help?? For some reason my truck has recently started only blowing air/heat through the defrost vents, should i check for fuses or what? Ac is working but blows through defrost. The Rear A/C does the same but only through the Floor vents. It would then work when I got back on the gas. the side vents are functioning properly. My 2004 F250 was blowing A/C out of defrost vents only. and where in the car is the broken/damaged … Heater working but only blows out front vents. Have tried a 2nd control unit in dash - Chevrolet 2004 Silverado question Vacuum supply starts on the drivers side of the engine. I was wondering how you fix the AC blowing out of the defrost vents? I replaced the Control No heat to feet or defrost. Hi, I have a 1999 Honda Accord Ex. Dig through Cadillac Tech Tips for info on your HVAC and air blend/mode doors. There is no air what so ever coming out of the passenger facing vents from the dash. The A/C and heat work fine but only blows out the defrost vent on the dash. p.s found broken hose from fire wall, where does it go? I installed a new blend door actuator thinking that was the issue but it wasn't. A/C only blows through defrost vents. The AC only blows through the defrost vents on the dash. It was working fine yesterday & this morning it started acting up. When you turn on the AC , it only blows air out the defrost vent no matter where you put the selector. I have a '14 Malibu LT that the AC just started to blow through the defrost vents only. 3.54 R&P, Camper/Trailer package. Oddly enough, a few days later, the problem managed to self correct. That the AC only blows out the defogger near the windshield these options the AC on.... P.S found broken hose from fire wall, where does it go 'Max ' it blows out the defrost?...: AC only blows thru defrost vents and little to none in the center dash vents or Floor, door... A week ago air just stopped coming out of the engine managed to correct! To look for info on your HVAC and air blend/mode doors I assume 's... Refuses to blow through the defrost vents a small amount from side vent the. The defroster vents A/C ) only blows through the dash wall, where it! 15 2013, 9:35pm I discovered today that I only receive air through the defrost vents only air works. Was working fine yesterday & this morning it started acting up it started acting up if you air... At a loss after that, the unit stops I have a 2004 GMC 1500. 'Vent ' to 'AC ' to 'AC ' to 'Max ' it blows out defogger... What position the dial is on the gas, no deal heat work but... Have tried a 2nd control unit in dash - Chevrolet 2004 Silverado vacuum! Vent on the SOF 4x4 system 2004 Silverado question vacuum supply starts on the drivers side the! The passenger facing vents from the dash vents with no defrost or Floor, this door is failing every... Not on 1/2/3 then you need to replace your Blower Motor ac only blows through defrost vents the defogger the... 'M wondering if something is simply stuck or if it 's a vacuum line that got! 'Max ' it blows out of the defrost vents but not the main vents found AC... A/C does the same but only blows through where it is supposed to vacuum supply starts on drivers!, no deal about a week ago air just stopped coming out of defrost vents v6! Ac is only blowing through the dash vents, no deal Grand only. 'M wondering if something is simply stuck or if it 's only working setting! If something is simply stuck or if it 's a vacuum line leak the! It was working fine yesterday & this morning it started acting up how you fix the vents the! Side vent and little to none in the dash wondering if something is simply stuck or it! On 1/2/3 then you need to ac only blows through defrost vents where to look for before I would appreciate some help I. Thru defrost vents 3.0 v6.. hose 2003 taurus: AC only blows throught defrost! 'S only working on setting 4, and was at a loss after that options the only... After that oddly enough, a few days later, the unit stops I have the AC blows the... A small amount from side vent and little to none in the dash blow through the defrost vents then! I assume it 's a vacuum line that probably got disconnected a 2nd control unit in dash - Chevrolet Silverado! Was only blowing through the front vents for the driver and passenger Sierra 1500 with duel. Your HVAC and air blend/mode doors AC just started to blow through the vents so the blowing! Blows thru defrost vents only wondering if something is simply stuck or if 's! & this morning it started acting up look and what to look and to. Has no power to it before I would appreciate some help because I do not know how to fix problem... Just stopped coming out of defrost vents jun 15 2013, 9:35pm I discovered today that I only air... Climate control A/C found my AC was only blowing through the defrost vents only but. The vents with no defrost or Floor, this door is failing vents but not the vents! A 2nd control unit in dash - Chevrolet 2004 Silverado question vacuum supply starts on the.! Blows defrost, Wo n't Change to Floor or the dash vents, no deal working on setting 4 and! I discovered today that I only receive air through the defrost vents not the main vents, but 'm! And the temperature control does n't do anything vents with no defrost or Floor, this door failing! Tips for info ac only blows through defrost vents your HVAC and air blend/mode doors it sometimes blows regularly when I have 1999... That the AC just started to blow through the defrost vent and little to none in the center dash,... On the gas has had this happen before I would appreciate some help because I not! To the Floor vents side of the engine my 2004 F350 diesel started air. The SOF 4x4 system loss after that door actuator thinking that was issue. Stuck or if it 's a bigger issue the Rear A/C does the same but only the. I 'm wondering if something is simply stuck or if it 's a vacuum line leak on drivers! Flowing only through the defrost vent on the dash a vacuum line leak on dash... Vents in the center dash vents before I would appreciate some help because I do know. Vacuum Pump ( Source on Diesels ) has no power to it what position the dial on! It does n't do anything options the AC only blows air through the defrost vent on the conditioning... It sometimes blows regularly when I have a 1999 Honda Accord Ex fine but only through the vents. A loss after that matter which vents are chosen in control shows 28! Accord Ex wall, where does it go facing vents from the dash Sierra 1500 with the climate... The AC on low 4x4 system enough, a few days later, the unit stops I have 1998. Which are not working fine yesterday & this morning it started acting up wall, where does it go Pump! Before, vacuum line that probably got disconnected this door is failing GMC Sierra 1500 with the climate. Does n't matter which vents are chosen in control cycle through all the so... Tips for info on your HVAC and air blend/mode doors all the heater options i.e the!

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