F150 Air Not Blowing Out Of Vents

Cold air is very heavy. I have a 2001 E250 econoline van starting about 2 weeks ago the rear A/C started blowing Hot Air out the floor vents. So the blower works just not when the A/C is on. Third, the locking mechanism on the dipstick handle (some GM products) may not be functioning properly. I came here to check out some options for my same problem. RE: AC/heater only blows out defrost vents IP: Logged Message: The default on my system when there is no vacuum, is to come out the defrost vents. Ford has done an incredible job of keeping these trucks close to being silent, but not everyone likes them that way! The way these trucks are setup from the factory, is to vent the excess pressure from the blow off valve back into the air intake system so that the sound is attenuated and virtually unheard. The air does blow cold as well. Sometimes when I first get in it for the day, it will not get cool/cold air coming out of the vents until I get driving OR if I raise the RPMs to 2-2500 for 10-20 seconds. Read this article to find out three. Not only will this dirty the room, it allows impurities to flow freely through the AC's components, opening the unit up to clogged components and eventual repairs. Yesterday I noticed some of what I thought was dust coming from the vents, today I realized it was more of a smoke/vapor. NO Vent air, JUST DEFROST! Under the hood i found directly behind the plenum on the pass side there was a t- fitting one line to engine, one to the vacume selector on the heater box and a broken end. Sorry if someone else has posted this question. It is located above the driver side gas pedal. I am a newbie who had an issue with my '97 TJ 4 cylinder Wrangler's HVAC system not blowing through the dash vents. If they are not, the coolant is not circulating correctly and it is time to have a professional replace the heater core. If the air coming out is much warmer than this, your A/C is probably not functioning properly. The disappointing lack of cool air coming through the air conditioning vents prompts you to ask yourself, "Why is my AC not blowing?" The most common causes of an AC not blowing are related to:. No matter what direction I turn the knob, nothing comes out. It did not fix anything. 2007 9-5 125k I am having trouble with my AC and heater / defroster. In the winter time the attic air is not hot but because of heat losses from the house and the sun's effect on the roof, it is warmer than outside air so it rises. It is like the directional doors behind the dash all closed up. Still has about 5 years on it About a couple times a week (just recently) our AC will be blowing out very cold air (depending on the thermo status) however it is barely blowing out the vents. hi there I'm a newbie and wanted to asked how to fix my ac vents for my commodore vt not shore if the problem is the vents or the knob which changers where the air comes out of the air now is only coming out of the window vents. WTF! It was working fine a couple weeks ago. Only a little air comes from the main dash vents. Twice it temporarily stopped working. thanks homerun. It happens pretty much every time I drive the car not instantly but sooner or later it starts. My F150 Lariat Super Cab is having A/C problems. Yep, I mean the fan is not blowing air out of the vents, it starting working this past weekend and then back to the same, there is no air blowing out of the vents but the a/c does get cold, bc I can see the pipes under the hood. This way we can make sure that the air is going where it should. No matter what direction I turn the knob, nothing comes out. Repairs for this problem = A/C compressor, orifice tube and drier replaced about 1 year ago. But it barely blows at all, I could hold a lighter up to the vent while on high and it won't blow it out. Twice it temporarily stopped working. Not just for its capacity to bring us rains but also in blowing away the invading pollutants. It could be that the fan is rotating slowly because the PC is not being used intensively. That's why, if you own or intend to buy a home built during these decades, it's important to identify the signs of poor airflow so you can figure out why there is very little air coming out of vents in your house. Most vehicles today have one multi-speed fan that blows air through a series of ducts and vents based on the driver's selection in their climate control system. I had the same issue with my 2008 Silverado in that the air would only blow out of the defrost vent. Still has about 5 years on it About a couple times a week (just recently) our AC will be blowing out very cold air (depending on the thermo status) however it is barely blowing out the vents. of available towing. I have heard some people say it is probably a vaccum hose issue. The ice maker works but it's not getting cold enough in the ice box to properly freeze the ice. outside is about 85. I can hear the fan motor buzzing along doing its thing, but no air is coming out the vents. AxleAddict » Auto Repair » Why Is the Heater in My Car Blowing out Cold Air and Not Heat? Updated on January 25, 2019 but the air coming out of the vents on. Your air ducts might need cleaning. 4 Place your hand above the black or red hoses connected to the heater core at the firewall. The vents are not blowing warm or hot air. My tents put one of those "Nest" thermostats (programmable via internet an phone app) on my air conditioning unit. I have a 1995 Ford Explorer I put a new unit control module in because the old one did not work I plugged everything up air blows through the vents but he cold air will not come out and neither wil. Ford, F-150, 2001, 74,000, and 5. when switch to these spots it still blows out vent. When the fan blows after the unit is turned on for the first time in years, parts of the rotted air filter blow out of the cooling vents. The service of evacuating and recharging this system may be all that is needed to get that air blowing cold from the vents in your BMW. 2009 - 2014 Ford F150 - 2013 Blower Motor Not Blowing - I read up on a number of threads, all of which say replace the blower motor resistor. I can hear the fan motor buzzing along doing its thing, but no air is coming out the vents. Whether it's a hot day out, a cold one, or you just want some air inside your Camaro or Firebird, not having the luxury of air blowing through your vents can ruin a nice drive. of available towing. Every time your furnace turns on, it blows air throughout the ventilation system in your home. Yep, I mean the fan is not blowing air out of the vents, it starting working this past weekend and then back to the same, there is no air blowing out of the vents but the a/c does get cold, bc I can see the pipes under the hood. Another reason why you have mold problems now is because of the two holes in your AC return. A simple fix for A/C not blowing from vents. When the fan blows after the unit is turned on for the first time in years, parts of the rotted air filter blow out of the cooling vents. We have 8',9', and 10' ceilings and the difference is very obvious. 2009 - 2014 Ford F150 - 2013 Blower Motor Not Blowing - I read up on a number of threads, all of which say replace the blower motor resistor. I have a 2001 F-150, once the heat gets up to the normal range I turn the heater control switch from off to floor or vent/floor. This should melt that ice on your insulated copper tubing on the AC unit. started the truck, an turn on the switch, an air was coming out of the vents. So if your car’s heater only blows cold air out the vents, read the following car repair article to gain a better understanding on how the heater system works and how to make it blow hot again. Tests have shown that effective natural ventilation can be achieved by providing inlet and outlet open vent areas of approximately 1 square inch per square foot of attic area, when roof slopes of 3/12 to 5/12 are used. Of course, if your air compressor is factory lubed for life (also known as oil less or oil free) you will not have an oil sump, and have no need of an oil fill tube. You can hear it make a noise when you switch from floor to vents like something is opening & closing but doesn't blow out floor vents very good either. I changed the heater core, switch, and resistor. RE: AC/heater only blows out defrost vents IP: Logged Message: The default on my system when there is no vacuum, is to come out the defrost vents. It works just not blowing well. Read this article to find out three. It seems cold air is now blowing out of the intake vent and hot air is blowing out of the vents. I have a 1995 Ford Explorer I put a new unit control module in because the old one did not work I plugged everything up air blows through the vents but he cold air will not come out and neither wil. I am curious if this is normal in the JSW?. Long story short, a dirty air filter prevents your AC from delivering enough air around your home. And the dryer wastes all of the heat it produces. I just know that some people who have had this issue traced it to a cracked vacuum line under the battery. 1hp submersible pump, maybe 15-20 GPM. At the same time, heat then comes out of the rear a/c vents. Re: A/C issue - not blowing thru front vents Find a new AC tech that knows what he is talking about. A real professional knows that, and should do annual maintenance on your entire system, including the air handler (that's what they call that big metal box outside that cranks out the noise). The air blowing in the house is from your indoor unit's blower. 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. Disconnect the canister vent line to the gas tank, and try blowing through it. Turn A/c on thermostat with auto fan, A/C kicks on but there is no air blowing through vents, yet if Heat is turned on than there is air blowing through. The vents that blow cold seem to ruin the effects of the heat because I'm usually sitting near the cold air intake, so when the heat is blowing out every other vent in the house the cold air return is blowing cold air at me. On the ground floor most of the vents put out warm air. Make sure to check the PCV Valve before overhauling your engine!! Here's a trick that one of my readers suggested. I am not getting air through dash vents but floor and defrost work fine and temperature - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. Sorry I thought it was a F250 not a van make sure the blower is blowing hard out the floor and defrost if it is not blowing hard and it sounds like it is running the blower cage could be cracked and spinning on the shaft or full of leaves. Service, parts, cost & recommendations from YourMechanic. I was given a 1998 Buick LeSabre with only 68,000 miles on it! Runs great but has a few minor issues including the problem with no air blowing from the mid dash vents. Central air blower is running but no air comes from the vents. After about 2 min, you can hear the change coming, and air sounds like it is blowing louder but sounds as if it is blowing into the dash and not out the vent. Lots of things can cause your blower to have trouble, especially if it gets too dirty. Yes, those knobs are all open, in fact closing them turns the output from 10% to 0% so I know they work. The 2 vents on the drivers side have warm air blowing out. So with just the outside vents on the dash going I'd check the defroster and also the floor (both under the dash as well as under the front seats, blowing back into the footwell of the rear seats). LE gets upgraded interior bits like real. I have a 2007 Dodge Grand Caravan. Hot air not blowing out of vents [ 1 Answers ] Furnace kicks on, but air blows cool (not quite warm). However, 3 vents blow only cold air --- any comments or suggestions. To see how frequently Ford F-150 problems occur, check out our car reliability stats. When one or more of these components fails, the heat or cold air capabilities go along with it. Acceleration can also have an effect on the doors for the same reason. Days will go by and then out of nowhere the blower well start to work and blow perfectly fine on all speeds for a day or so and then it will stop. I ended up taking it into a dealer and the scan revealed code B3779 - airflow mode actuator stuck. Check Your Furnace Blower Fan. My central AC air conditioner system works very well. We have 8',9', and 10' ceilings and the difference is very obvious. The temp of the car was normal. A dirty air filter blocks airflow to the air. The most recently reported issues are listed below. Heater and air conditioning problems on cars and trucks. Whether it's a hot day out, a cold one, or you just want some air inside your Camaro or Firebird, not having the luxury of air blowing through your vents can ruin a nice drive. Why Is My Central Air Conditioner Not Blowing Hard? Does the air coming out of your vent feel weak? If so, check another vent to see if you still feel low airflow. The windshield defroster vents quits blowing air/heat. Is there a different fuse I am missing or is it something else like a blower motor or something? No dealer so got to fix on my own. It blows hot air so I don't think there is anything wrong with they heating system. I bumped it down a couple of degrees and waited to see if it would kick on. If I turn the ignition off and then start truck again it will work like it should for a while. Regardless of the settings on the vent selector I have airflow coming out the a/c vents all the time. I was driving to work today and smoke just started coming out of my air vents, I had the AC running, and it was running fiine. Blowing heat on one side and ac on the other (2010 Ford F-150) When the AC is turned on, my 2010 F150 blows hot air into driver side compartment but cold air into the passenger side compartment. F series and E series ford vans and trucks. If your car has no heat, not only would the inside of your car feel like an ice box, but a broken heater can prevent your defroster from blowing warm air to your windshield to eliminate ice and fog, which can pose a hazard while driving. On the ground floor most of the vents put out warm air. It could be that the fan is rotating slowly because the PC is not being used intensively. I am relatively sure it is not the duovalve assembly, although it could be a wiring problem. The air does blow cold as well. Most vehicles today have one multi-speed fan that blows air through a series of ducts and vents based on the driver's selection in their climate control system. And the dryer wastes all of the heat it produces. That brings up an interesting thought - fuse vents (I just made up that term. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. There might be a quarter inch gap between the duct and the joist, not enough to let much air out. I have a 99 F150 V8, Ext cab, 4x4, that when I first turn on the AC it blows out of the vents great. up and down. No hot air, most of the time. thanks homerun. Also, make sure to turn the temp up on your thermostat at night, otherwise the condensation can build up and freeze overnight and you'll keep getting the same problem. Years ago this was controlled by vaccum lines, but now everything is electronic. Incredibly, the well blows air out through this filter when pumping, make a sort of whistle at times - you can feel a breeze at this pipe. Beginning of the summer my side vents started to blow super hot air while my center vents blew cold/cool. A/C is controls are set to max air and max cold on the temp control. The problem I have is that when you turn the ac on the cool air only comes out the 2 vents on the passenger side. For the CX-9, the Azami we have here is slightly trumped by the Azami LE. The air conditioner only blows through the defrost vents only, even when switch is turned to Panel or Floor. No such luck. Help! Recently my air conditioning started blowing out of the defrost vents in front of the windshield. not blowing air through dash vents on it some thing got fried because the ac only blows through the defrost vents and the gas gauge was pointing straight down. 2007 9-5 125k I am having trouble with my AC and heater / defroster. I just recently bought a used 2005 and discovered that the middle two vents next to the center stack are not blowing any air. Mine has never blown air though the dash vents, just on the floor, so I swapped out blend role mode actuator under the drivers side of the dash, in the middle, now it just stays in defrost mode but since its been such a hot summer I've never really fixed it. The best way to prevent this black soot from circulating into your home is to upgrade to an air filter with a MERV of at least 13. Some of my vents are blowing little to no air and some are blowing air!! What should I do? My central air is three years old and never experience any signs of lack of air but today I turned the central air on and noticed two vents where blowing the right amount of air while the rest where blowing little air out of them. Heater and air conditioning problems on cars and trucks. And I mean keep it there all the time, not just when you’re doing diagnostic work. Apple says that, with Active Noise Cancelling enabled, the AirPods Pro are rated for 4. When the defrost button is pushed, the air gets hot but continues coming from the same three places. Now I am sure you have already checked the air filter but if not that could also be the problem. Incredibly, the well blows air out through this filter when pumping, make a sort of whistle at times - you can feel a breeze at this pipe. outside is about 85. No more dry hotel room,” the bearer of good news revealed. Hey guys this is strange but I noticed today that my ac is blowing really cold air only out of the passenger side vents and semi cool air to room temp out of the driver side vents. If this truck has EATC a control head problem is not unusual. I picked up a new flow actuator at a local parts store for $140 and installed it myself. On the ground floor most of the vents put out warm air. Yesterday I noticed some of what I thought was dust coming from the vents, today I realized it was more of a smoke/vapor. There are 4 usual causes of a heat pump not blowing warm air: Here’s why these issues prevent the heat pump from blowing hot air—and what you can do about them. My 2004 F350 diesel started blowing air out of the defrost vents only. Not only will this dirty the room, it allows impurities to flow freely through the AC's components, opening the unit up to clogged components and eventual repairs. Beginning of the summer my side vents started to blow super hot air while my center vents blew cold/cool. Inspect both external and internal air intakes located at the base of the windshield (external) and at the passenger side foot well (internal). Why Is My Central Air Conditioner Not Blowing Hard? Does the air coming out of your vent feel weak? If so, check another vent to see if you still feel low airflow. I have a 2000 Ford F-150. Heater working but only blows out front vents. If I put the a/c on it blows cold and blows hot when I put the heat on. Thermostat is in bedroom #2 and only has the job to heat itself plus bedrooms 3 & 4, but bedrooms 3 & 4 are like freezers. And when the AC was on and the car was parked, i saw alot of puddled liquid (condensation water) under the car. ford f150 blows out vent only 2003 ford f150 only blows air out vent only. Re: Mask blowing air out of front vent holes? Post by Otter » Fri Mar 25, 2011 10:40 pm It occurred to me this afternoon that I did know what the valve on my mom's mask was for when I was trying to fix it. Ford F-150 owners have reported 13 problems related to air conditioner (under the equipment category). The vent may not be well sealed or insulated in the attic. Yesterday my F-150 would only blow red hot air and could not get any cold air (even though the a/c was on) and the temps outside were reaching 90+. In normal car air conditioning if the fan is set to maximum the amount of air coming out the ac vents should be also maximum, but if the car air conditioning vent barely. How much does Air is not coming out of vents Inspection cost? Get an estimate instantly. Hey Guys im looking for some technical help for my 2004 325i sedan. Days will go by and then out of nowhere the blower well start to work and blow perfectly fine on all speeds for a day or so and then it will stop. Most vehicles today have one multi-speed fan that blows air through a series of ducts and vents based on the driver's selection in their climate control system. The 24ACB7 has been designed utilizing Carrier’s. When the defrost button is pushed, the air gets hot but continues coming from the same three places. Your definitive guide to Air is not coming out of vents Inspection. And I mean keep it there all the time, not just when you’re doing diagnostic work. 1hp submersible pump, maybe 15-20 GPM. If it's clogged in dirt, airflow is blocked, weakening the air you feel coming from your vents. RE: AC/heater only blows out defrost vents IP: Logged Message: The default on my system when there is no vacuum, is to come out the defrost vents. No hot air, most of the time. I am relatively sure it is not the duovalve assembly, although it could be a wiring problem. I can hear the fan motor buzzing along doing its thing, but no air is coming out the vents. The hoses should both be hot. The vents are not blowing warm or hot air. If the vents are blocked you can use compressed air to clean the vents. Another reason why you have mold problems now is because of the two holes in your AC return. I just recently bought a used 2005 and discovered that the middle two vents next to the center stack are not blowing any air. But when it's on 1/2/ or 3 I hear the motor working, but there is no air blowing. In normal car air conditioning if the fan is set to maximum the amount of air coming out the ac vents should be also maximum, but if the car air conditioning vent barely. My central AC air conditioner system works very well. Is there only one freezer fan that blows cold air up into both vents or does each vent have it's own fan?. No more dry hotel room,” the bearer of good news revealed. RE: AC/heater only blows out defrost vents IP: Logged Message: uh. Drivers side AC vents blowing hot air at max cool Like the title says, at maximum cooling, the drivers side AC vents are blowing 80*F air and the passenger side is a much cooler 60*F. Otherwise the air coming out would be foggy and the ducts would be soaking wet. Built in oven blowing out hot air? normal? I have a Harmony Nova built in oven with a fan inside, when this oven is truned on it blows air from out the top of it, i dont know if this is normal or not?? the door seals the oven part but above the door seal theres a gap where the air comes from and it heats up the room whene ver th eoven is on. My RV sat all last year and when I drove it today all the air is blowing out of the defroster vents. And the dryer wastes all of the heat it produces. Well everyone seems to be typing random answers which don't answer the question, so I will. The temperature gauge reads normal. This 1999 Ford E150 van came in with the complaint that the a/c would only blow out of the defroster. ) The car shops wanted way too much money to. Yep, I mean the fan is not blowing air out of the vents, it starting working this past weekend and then back to the same, there is no air blowing out of the vents but the a/c does get cold, bc I can see the pipes under the hood. The day I picked it up, everything worked great. If you scale down, ensure that it is done in proportion and that it is no less than 20% of its original size. Leonov later wrote: "Even though it was not my fault, I blamed myself for what had. Fix Your Furnace If It's Not Blowing Warm Air 42 This entry was posted in DIY and tagged Byant Currier DIY furnace blowing cold air furnace broken furnace ignitor furnace not blowing hot air gas furnace hot surface ignitor how to fix a furnace igniter Lennox Trane on November 4, 2014 by Steve Jenkins (updated 1807 days ago). Drivers side AC vents blowing hot air at max cool Like the title says, at maximum cooling, the drivers side AC vents are blowing 80*F air and the passenger side is a much cooler 60*F. Ford F-150 2005, HVAC Heater Core by Spectra Premium®. Long story short, a dirty air filter prevents your AC from delivering enough air around your home. At Edmunds we drive every car we review, performing. No heat to feet or defrost. Under load, the a/c switches from the dash vents to the floor or defrost vents. Ford F150: ac is blowing but the vents wont open. "ON" means the fan is always blowing air through your vents, even when your system isn't working to cool the air it blows. To see how frequently Ford F-150 problems occur, check out our car reliability stats. The service of evacuating and recharging this system may be all that is needed to get that air blowing cold from the vents in your BMW. I have a 99 F150 V8, Ext cab, 4x4, that when I first turn on the AC it blows out of the vents great. Sorry if someone else has posted this question. Re: A/C issue - not blowing thru front vents Find a new AC tech that knows what he is talking about. This jargon-y term refers to a particular design that trades. It blows cold air, but not through the corresponding vents that the A/C lever control is set to. We have 8',9', and 10' ceilings and the difference is very obvious. So the blower works just not when the A/C is on. Re: AC won't fully switch to blow out dash vents. I'm wondering if something is simply stuck or if it's a bigger issue? If I'm not mistaken, the vacuum pump that runs the HVAC & 4x4 on these trucks is electric, with a plastic housing. Good thing I do not have to hit the highway. The Ford F-150 features a high-strength, military-grade, aluminum-alloy body and high-strength steel frame, providing the foundation for available best-in-class* payload and up to 13,200 lbs. Now I am sure you have already checked the air filter but if not that could also be the problem. It's a small hose check really good they dry rot and it will cause your vents to switch. Turn A/c on thermostat with auto fan, A/C kicks on but there is no air blowing through vents, yet if Heat is turned on than there is air blowing through. Searching around I see I should look for a vacuum hose off but I do not even know where to look. Now that the cooler weather is hear and I want to use the heater, it seems like there is the opposite problem - now I get cold air blowing out some vents and the hot air in others. Frozen evaporator coil : If there's limited airflow going over your evaporator coil, it could freeze over , which would also limit the amount of cold air that comes out of your vents. It happens pretty much every time I drive the car not instantly but sooner or later it starts. Return vents are connected to your return ducts, which pull air out of your indoor spaces to deliver to your heating and cooling system. When I am at idle, I get cold air coming out the vents. I believe you that it is a (another) known issue but we are talking about 2 separate problems then. I have a 99 F150 V8, Ext cab, 4x4, that when I first turn on the AC it blows out of the vents great. A Bible that is falling apart probably belongs to someone who's life isn't. 2007 9-5 125k I am having trouble with my AC and heater / defroster. For gas leakage from heat sensing tube, re– place expansion valve. My A/C won't blow out of the front vents, only through the top portion of the dashboard by the windshield. Then, I felt the air coming out of her side and there was quite a difference. Then all of a sudden nothing. If I turn the ignition off and then start truck again it will work like it should for a while. Make sure to check the PCV Valve before overhauling your engine!! Here's a trick that one of my readers suggested. This 1999 Ford E150 van came in with the complaint that the a/c would only blow out of the defroster. What would cause air to only blow from the defrost vents and not blow out of the panel vents even when the switches are turned to max ac in a 1995 Ford Explorer? Check all of your vacuum lines. AC simply means the compressor, the bit that sucks your fuel by creating extra load on the engine, if you turn off the AC it simply turns off the compressor, the fan can still run if you want it to and you can turn on the heater, just on the colde. This should not happen on the C-series. The house is not cooling down. I had the same issue with my 2008 Silverado in that the air would only blow out of the defrost vent. “ON” means the fan is always blowing air through your vents, even when your system isn’t working to cool the air it blows. I have no idea what could be wrong or how I could fix it. Over the past several weeks, the AC/Defrost/Heater switch has been slow to respond. I'm not getting any air hot or cold blowing out, but when I get on the highway a very small amount will blow out. Repairs for this problem = A/C compressor, orifice tube and drier replaced about 1 year ago. New water pump, new thermostat 195°, heater core has been flushed out. 2009 - 2014 Ford F150 - 2013 Blower Motor Not Blowing - I read up on a number of threads, all of which say replace the blower motor resistor. But when it's on 1/2/ or 3 I hear the motor working, but there is no air blowing. 6l 170000 miles Air conditioning Vacuum pump Clutch My ac compresser comes on when I have the switches disconnected and controlsee are off and when trying to recharge the system it want take any freon i used a vacuum pump to pull out the moisture can you tell me what could cause this to happen and how to get it fixed. Under load, the a/c switches from the dash vents to the floor or defrost vents. Blows cold out the feet, and redirect SEEMS to be working, just not blowing at all out the main vents. I came here to check out some options for my same problem. I checked a fuse for a modulator door and it was good. it only blows out of the defrost. I have a 2011 f150 lariat 4x4. If you have had recent work done on your heating and air conditioning system or if you have had renovations or construction in or near your home, you may experience large amounts of dust and possibly some insulation blowing around your home. Security guards and police patrolled the halls the rest of the school year. I'm wondering if something is simply stuck or if it's a bigger issue? If I'm not mistaken, the vacuum pump that runs the HVAC & 4x4 on these trucks is electric, with a plastic housing. Running the heat or defrost at full blast gets virtually no air moving from any vent, not enough to blow out a match. On the ground floor most of the vents put out warm air. Nothing come out of the vents in the dash. 4L I just replaced my blower motor and blower motor resistor and works great but now my air conditioner is not blowing cold air and it did before replacing these pa. If testing proves that your heater core is. My furnace is not blowing enough air out of the vents Is a 60,000 BTU furnace enough to handle about 1600sqft area with 19 vents total= 1,530 sq. up and down. The disappointing lack of cool air coming through the air conditioning vents prompts you to ask yourself, "Why is my AC not blowing?" The most common causes of an AC not blowing are related to:. If you have had recent work done on your heating and air conditioning system or if you have had renovations or construction in or near your home, you may experience large amounts of dust and possibly some insulation blowing around your home. Well everyone seems to be typing random answers which don't answer the question, so I will. I do know when i switch which way the air should be blowing i do hear a loud click which make sense it is the door issue. To see how frequently Ford F-150 problems occur, check out our car reliability stats. In f150 truck there is a small vacum hose passenger side up by the windshield. The dial at the bottom of the vents are open and I even pulled out the middle right vent to inspect the mechanism and everything is working fine and there. This door is controlled by a thumb wheel that when activated will open and close the vent air flow door. I have no idea what could be wrong or how I could fix it. The vent may not be well sealed or insulated in the attic. I am curious if this is normal in the JSW?. Ford F-150 1999 F150 4. So the vents blows but the air is kinda warm but no heat like it is suppose to. Searching around I see I should look for a vacuum hose off but I do not even know where to look. Why Is My Central Air Conditioner Not Blowing Hard? Does the air coming out of your vent feel weak? If so, check another vent to see if you still feel low airflow. From what i've read this would be from a recurc door not working properly. With that info plus the fact that the air at those vents is blowing out, not drawing back into belly, that return system is not operational. 13 hours ago · By way of qualification, it is certainly necessary to air legitimate concerns. I had this fixed once before at a shop but I know it is a vacuum leak in the pass. On my way back to work from lunch (in stop and go 90 degree sun#@$%!) the air quit coming out the vents. I came here to check out some options for my same problem. I have tightened up a couple of leaking joints and this is the remaining leak. Third, the locking mechanism on the dipstick handle (some GM products) may not be functioning properly. I found that if I use the "vent airflow" selector knob and switch to the defroster and back, it will start working properly again and blow through the A/C vents. When I have it on recirculating it will blow cold out of both but still not as cold as the passenger side.