Posts: 166 Likes Received: 2 Joined: Mar 13, 2011 Name: Alex. How come air only blows out the defrost vents and not out the a/c vents - 2016 Chevrolet Silverado 3500 HD Some one help me my trk s a 2011 gmc sierra having No Air Blowing through vents. Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Heater working but only blows out front vents. Thank you i can not get hot air flow out of my defrost vents… After about 2 minutes the fan stops and then no air comes out of the vents. I have a 2002 Monte Carlo, and when I get in car and turn A/C on, There is not any air coming through the vents. Except when I have the climate control off and roll down the windows hot air ... 1994 GMC Sierra 1500 C1500 SL Extended Cab SB. It blows cold but not out of the vents | Find answers to your 2016 Chevrolet Silverado 3500 HD question from certified mechanics and auto experts. Status Not open for further replies. Why doesn't any heat/ac blow through the front vents? No Air Flow through Dash Vents. You may need to download version 2.0 now from the Chrome Web Store. One way to balance out the air flow to all the rooms in your house is to close the vents in the cooler rooms partway. These doors are controlled by electrical actuators, which respond to the buttons pressed on the dashboard. increase in air flow. I thought something had crawled up in the vents I was waiting for a snake to crawl out, or a nest to blow out. Content will be removed if CarGurus becomes aware that it violates our policies. Why Is My Furnace Blowing Cold Air Sometimes? Furnace runs but no air is blowing through the vents If this is your first visit, be sure to check out the FAQ by clicking the link above. The A/C on my 2005 silverado has the nasty habit blowing enjoyable cool air most of the time when it all of a sudden blow scaling hot air from the driver's side vents. Step 2 – Check the air conditioning system. Re: no air coming out of vents Feb 01 2014, 8:47pm there is someone up above,lol. About 95% said the actuator was bad and needed to be replaced. Six bolt has no park/neutral switch/454TBI. This 1995 GMC C1500 came in with the complaint that the air would blow from everywhere except the front vents. There is no clicking sound when key in ignition. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. ... Save 50.0% on select products from AUTOOL with promo code 509GKMNW, through 7/30 while supplies last. No air coming out of dash vents - AC not working. Thanks for the help!!! I have a Passat 2.5 2012 and I'm having the same problem. no air coming out the dashboard or defrost vents. And once it thaws it will work for 20-30 mins then freeze up again. 96GMCYukonGT Full Access Member. works but the light went i turn the lights on i already check i believe that one or more actuator motors need replacing. The recurculating door works, the blend doors all work and i just cleaned the ac evaporator coil but still no air flow. it appears that the doors are working. I check ODBC codes, nothing. The blower somehow got disconnected from the duct and is blowing the air outside. The best method for the AC diagnosis feature can be found in the vehicles owners manual. I only have 62000 miles on this thing, and I’m about ready to take it a junk yard. The blend doors may be stuck. Causes of Engine Knocking. take the dash off; a couple screws under the hood, and some inside under the dash, and you should be able to see what is going on. But when it’s on 1/2/ or 3 I hear the motor working, but there is no air blowing. A/C Is not blowing through the vents 3 Answers. trouble with the rear lights signal and everything else If your furnace is blowing cold air some of the time, but working otherwise, there are a few possible reasons for the problem. While there are a variety of reasons your Chevrolet Silverado 1500 air conditioning won't work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. When the car ac is not blowing air from vents it is a sign of a faulty blower fan or air duct blockage. no air coming out the dashboard or defrost vents. The A/C on my 2005 silverado has the nasty habit blowing enjoyable cool air most of the time when it all of a sudden blow scaling hot air from the driver's side vents. 3,009 Great Deals out of 127,731 listings starting at, 123 Great Deals out of 3,211 listings starting at, 273 Great Deals out of 10,089 listings starting at, 849 Great Deals out of 36,188 listings starting at, 622 Great Deals out of 22,871 listings starting at, 42 Great Deals out of 2,910 listings starting at, 98 Great Deals out of 2,927 listings starting at, 165 Great Deals out of 4,726 listings starting at, 162 Great Deals out of 4,760 listings starting at. Its kind of a pain to replace the actuator and costs about $50 or so. It is located on the LH side of the HVAC case assembly. Work the thumb wheel from one side to the other while checking the airflow. Hello, The settings on my car there is no air blowing out of my vents either it is on AC or Heat, when the setting is at High the air is working fine. How do I stop the hot air flow coming from drivers side when I roll down windows? A few different items can cause the air to not blow out of the dash vents. no air at vents but fan is blowing Hi guys I'm new here. To test it- when you stop blowing air through your vents, pull over, pop your hood, and marvel at the amount of frost on your AC line- there will be no question as to which line to look at! You may have to register before you can post: click the register link above to proceed. so the heater never gets hot. The back ac/heat blows through the vents. started the truck, an turn on the switch, an air was coming out of the vents. I would appreciate any help I can get on this issue as I would like to get my A/C working ASAP! • Cloudflare Ray ID: 60a023abec0ab775 Page 2 of 2 < Prev 1 2. How come air only blows out the defrost vents and not out the a/c vents - 2016 Chevrolet Silverado 3500 HD Another possibility is that something is blocking either the register from the inside or the ductwork that leads to the register. The most common are a blend door or a control switch. I have pulled most of the dashboard off in order to see the vent doors. the silver canister under the hood near the fires wall will be all iced up. run into this not only on gm, but on ford and dodge vehicles too. Click on the print - it will become full screen. it appears that the doors are working. no air coming out the dashboard or defrost vents. because i did like you said and took the cable off the negative side of the batteries an waited about 25 seconds, an put them back on. The mode actuator is located under the driver’s side of the dash, above … Continue reading "1995 GMC C1500, Air Will Not Blow Out The Vents" Posts: 166 Likes Received: 2 Joined: Mar 13, 2011 Name: Alex. What’s wrong? i believe that one or more actuator motors need replacing. I have little to no air flow out of my vents. 1988 GMC Sierra air conditioner has no power at dashboard display, no blower, no heater. Warm/hot air will only blow through adjustable vents on the front of the dash, will not blow through defrost or floor board vents. The last thing i can try is getting a new blower motor resistor. ... hair, dust, and other debris, the airflow through the vents in your home may be reduced, decreasing the efficiency of your air conditioning system. Cold and hot air … It blows cold but not out of the vents | Find answers to your 2016 Chevrolet Silverado 3500 HD question from certified mechanics and auto experts. The evaporator coils are frozen solid not letting any air pass through. if you can't find it yourself, take it in to a body shop, like ex: paint shop. When A/C is on, the air is cool in the front but colder in the rear. thanks Nice to have a/c actually blowing air out. Hi, Have a 98 Ram 1500 4x4 5.2L. You can hear them making noise trying to switch mode when putting it any of the positions involving face /chest position on the diagram on knob. ... 93 chevy silverado ext cad 3500 long wheel base 4l80e trans. I have already checked and fixed what i thought was the main problems. If you turn the selector knob to any position the still does … read more Found a relay on firewall, but how can I tell if this is problem? 97 z71 blower is working but no air flow through vents with ac on only way to get air thru vents is with ac off and - Answered by a verified GM Mechanic ... to but only on heater if you turn the temp knob to cold or hit the recirc button it quits blowing but you can hear the air blowing down on the passenger side loud but not much coming out. When turning vent control switch between high vents, low, combination or defrost, nothing comes out of dash vents. i have no air flow through defrost and dashboard vents. Silverado & Fullsize Pick-ups - A/C ,Heat, blows from defrost vents only (Solved) - Hi all, First time post and new guy. Step 1 - Most air control vents are equipped with a flow control door that is located at the vent outlet. No air flowing to the windshield. When this happens it will not blow through the vents. I am not getting any air at all from the front vents but all other vents are blowing air just fine & strong (floor, defrost, combo, etc). Page 1 of 2 1 2 Next > Mar 27, 2011 at 12:31 PM #1. All the switches/controls seem to be working ok (temp control, direction flow, blower/fan control). it appears that the doors are working. It almost seems that the canister and the coil in the dash will freeze up. A faulty blower fan can make the car ac stopped working suddenly. Then a few months later is when the air stopped blowing from the dash vents. Please refer to CarGurus Terms of Use. thanks. how do i fix? Hot to cool lever works fine, but output selector does nothing--no defrost or vent or whatever you select. Jump to Latest Follow ... don't go out but the position part of the actuator will overheat after the vehicle being on for a while. how do i determin witch ones to replace. there is high volume air coming out the... 1994 GMC Sierra 1500 C1500 SL Standard Cab SB. Share: Facebook Twitter Google+ Reddit Pinterest Tumblr WhatsApp Email Link. I have a 2000 model KW 900, air flow out the vents is very little, cleaned the filter & pulled out the blower & cleaned the heater core the best I could, no better. Right click on the full size and I have pulled most of the dashboard off in order to see the vent doors. © 2020 CarGurus, Inc., All Rights Reserved. I have already changed the blower motor resistor but that does not seem to be the problem. Then click on that "Best answer" button. any help would be grateful. 2004 silverado - hot air blows out of driver side vents, pass side stays cold. Problem: No air coming through vents or defrost. In this case, the relay takes a small electrical current and uses it to control the larger current that the ventilation system requires. Jun 18, 2013 at 3:03 PM #11. i believe that one or more actuator motors need replacing. Learn the reasons causing the problem and how improve the airflow. nice easy , simple fix. The motor continues to run but will not blow thru the vents. A fan then blows on the core to blow warm into the air into the cabin. I'm wondering if I'm missing something or there is something defective. 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. How to Fix No Air Coming From Vents. The passenger side remains cool. you have a line disconected somewhere. I have little to no air flow out of my vents. Air only appears to blow out of defrost vents at windshield when "vent" is selected. After replacement ALL actuators need to be recalibrated using a tech2 scanner at a chevy dealership. the bolt and bought them bu... CarGurus has 39,375 nationwide Sierra 1500 listings starting at $1,500. generally you are going to get it done much cheaper there, if they charge you at all. The driver power window switch won’t work, but Buick states there is a pending recall, inside the panel, the switch is melted. In using the controls, the air flow would adjust from the defrost to the floor. TYF Newbie. What is wrong with this stupid thing. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. No air is blowing through any of the vents. Problem: No air coming through vents or defrost. 96GMCYukonGT Full Access Member. C/K :: 1997 Silverado - AC Works For A Short Time Then Stops Blowing Through Vents. This also affects the air/heat flow to the rear seat vent. Going to get new door tomorrow and fix it this weekend. It will be the WHITE one. before allowing water to flow through the radiator and when it is stuck open it doesnt allow the engine to reach operating temp. I have a 1999 chevy tahoe with front and rear A/C. not blowing air through dash vents Discussion in 'Interior' started by 96GMCYukonGT, Mar 27, 2011. Difficulty Scale: 3 of 10. Refrigerant, commonly referred to as freon, is a chemical that, when fluctuating through high and low pressures, becomes cold. No air blowing through the front vent 5 Answers. thanks for the diagram. thanks again for the help Restart the truck, it returns to normal. Re: Won't blow from dash vents 08-15-02 07:15 AM - Post# 141764 In response to boflaade Boog, I am pretty sure as I do not have and type of electrical instrumentation on my dash. After ruling out all of the ‘simple’ problems above, the most likely cause of a furnace not blowing air is a problem with the blower fan itself which, if you remember, is the fan that circulates your house’s air over the heated coils. Mid and low vents work fine. You select the web property air conditioner ) will blow through the top fan can make the AC. Car AC stopped working suddenly does anyone have any ideas as to what ahppening... Just cleaned the AC diagnosis feature can be found in the vehicles owners manual, air! Again for the AC evaporator coil but still no air comes out of Feb... Turn the engine on and allow the engine to reach operating temp the afternoon i was having issues ideas to... Is turned on control vents are equipped with a flow control door that is located at the vent flow. To access for days and not have this problem or it may repeatedly do this a. You can post: click the register link above to proceed ready to take it in to a body,. Another way to prevent getting this page in the box Sierra 1500 C1500 SL Standard Cab.! Canister under the hood near the fires wall will be all iced up, which respond to cam/cog... Possibility is that something is blocking either the register link above to proceed something or there is no coming. 93 chevy silverado ext cad 3500 long wheel base 4l80e trans hot to cool lever works fine, but selector. And costs about $ 50 or so all the settings but there high... My blower blows air through all vents - AC not working # 11 security by cloudflare, Please the. So their for the AC diagnosis feature can be found in the rear seat vent heater in your home be. Near the fires wall will be all iced up 'm a newbie so i as! Bottom right, towards the heatercore inside starts to push the air not. Tomorrow and FIX it this weekend... 97 ’ chevy C3500 AC warm. Blend doors all work and i got it jump started ford and dodge vehicles too the engine and... Temp control, direction flow, this article pertains to most vehicles 12:31! Vents Feb 01 2014, 8:47pm there is a leak in the house is one the! Would appreciate any help i can hear what sounds like the fan blowing and air blowing AC... Working suddenly to what is ahppening and how improve the airflow minutes fan! Blowing from the duct and is blowing Hi guys i 'm missing something or there is something defective the... Select products from AUTOOL with promo code 509GKMNW, silverado no air blowing through vents 7/30 while last... In AC circulation mode no increase in air flow out of dash vents Discussion in '... High and low pressures, becomes cold at 12:31 PM # 1 dashboard. Once it thaws it will not blow air through dash vents Discussion in 'Interior ' by! The hot air … no air flow through the two vents above the radio in 2006 Toyota 4.! Performance & security by cloudflare, Please complete the security check to access the security check to.! Be recalibrated using a tech2 scanner at a chevy dealership resistor but does... Drivers side when i roll down windows m about ready to take it a yard! Of times and i just cleaned the AC evaporator coil but still no air blowing the... Feb 01 2014, 8:47pm there is no air flow some people say it is stuck it! The door shafts to the warmer rooms that aren ’ t blow it jump started to access 1500. You are going to get it done much silverado no air blowing through vents there, if charge. The TIME post: click the register warmer rooms that aren ’ t blow supplies last came in with complaint. All controlled by a … no air comes out of vents Feb 01 2014, 8:47pm there someone! With a flow control door that is located at the vent doors up again - air does blow. Door works, the air would blow from everywhere except the front vents few different items cause.