It is thin black pieces. Car AC airflow problems on vacuum operated systems usually stem from missing vacuum inputs. We recently had it in for service on the generator. Foam is coming through my vents , doing some research its known as the foam that surrounds the AC and Heater. Changing air filter gets rid of car smell Cleaning the Air Vents. I had some nasty yellow foam crap in the heater/blower at one point. The house is not cooling down. why did this happen? The settings are at the coldest with a fan setting of 0. The car: 1998 Jetta (A3) First: I have chunks of foam which seem to be blowing out of my a/c vents on a regular basis. 1 - 5 of 5 Posts Just like audio speaker cone foam surrounds, it rots and falls apart over time. If there’s a small pinhole — which is a small leak typically caused by corrosion — in the heater core, drivers may have steam coming from the vents, but it will likely smell of coolant. Yeah, it's all the foam seals and gaskets on the various ducting joints and door edges. The above two methods are about cleaning the air duct and air filter that are on the interior side of the car. There are pieces of reticulated foam behind the IP air vents. Where is this coming from? The vent system closes the air inlet door when the system is turned off or when the vehicle is turned off to prevent air from entering the vent system. Looks like the foam surround that goes around the blower motors and AC doors is deteriorating and blowing out the vents. And the big fan in front of the radiator still spins when AC is on. Here is a picture of stuff blowing out of intake vent. You can help to clear it by closing all vents but one, running the fan at full blast and using a strong vacuum cleaner to suck it out of the vent. With time, dust and … It doesn't do it right away, but after we've run it for a while some kind of odorless fog starts coming out of the vents. on Sep 3, 2013. Unreliable car heaters can make the cold winter months practically unbearable. I never really located where the screen material was without taking the ac unit apart. The most of them come out in the rear AC vents, but some come out up front, and to a lesser degree the vents in the center of the motorhome. Cleaning the A/C Vent System Replace your car’s cabin air filter. I'm assuming some foam insulation in the vents is getting old & disentegrating. 2002 Cadillac Seville Asked by JMike in Mount Pleasant, SC on June 10, 2013 The A/C works fine except that it now blows black greasy foam out of the vents everytime it is in use. Why does my car air conditioner start blowing something that looks like steam out of the vents after a while? Re: Weak Air Blowing from Car Vents « Reply #2 on: July 11, 2017, 11:47:55 AM » Some systems have blowers that are easily removable with the squirrel cage coming out with it. I've added refrigerant. The problem might be with the air inlet door actuator. If the air inlet door fails to open to let air into the vent system, you’ll get no air flow from the blower motor. This door is controlled by a thumb wheel that when activated will open and close the vent air flow door. Small foam pieces blowing from vents My (otherwise perfect) 1998 Boxster with 80M miles occasionally blows out small pieces of dark grey foam from the vents (dashboard and floor). I drive a 2005 Nissan Sentra Very warm air is coming out of the little vents inside. Car issues can make people scratch their heads. After less than a year, these began to deteriorate. The air vents reside on the outside near the windshield. I think it's a heater core, but there is no quote on your site to fix that specifically, just upper or lower hoses.. My car has 118000 miles. This blog post will give you a good idea of what might be causing the problem with your car heater. Also, the window fogs up when the heater is on. It was really bad initially but every now and then a piece still flies out. Best I could tell on mine, it is a black screen material that is part of the ac unit system that routes the air to the ac vents. Matter of fact he didn't have any air flow at all! took it back to dealer and they reported they found nothing wrong. It seems cold air is now blowing out of the intake vent and hot air is blowing out of the vents. Reply. Car air vents can get pretty dusty over time, but getting between those narrow slots makes them tough to clean with just a rag. As the vehicle ages, the foam strips’ glue will dry out and they will start to fall off and blow out small pieces out the vents. If your car heater is suddenly blowing out cold air instead of heat in the middle of a bitterly cold winter, you have a good reason to be frustrated. Unless you want to tear apart all the dash vents and replace all the foam strips, then I would just let it blow. No vacuum signal can cause the air to dump behind the dash and flow very weak from all of the vents. Also heat comes out or you will have poor cooling. WHY IS FOAM BLOWING OUT A/C VENTS - 1971 beetle type 1, just had the 1600cc engine rebuilt, picked it up yesterday was driving today and a spark plug shot out of its mount stripping the threads on the engine. Woodbridge Environmental Tiptophouse.com. If the evaporator core has a small pinhole, it may spray a fine mist of [refrigerant] from the vents. The best way to prevent this black soot from circulating into your home is to upgrade to an air … I took it to my mechanic and he said it was probably the insulation foam the factory puts between the vent pieces in the air duct system but that he would have to take the whole duct system apart to see if that's it. This has been going on for about a year now, with no end in sight. Has anybody ever seen this? I've replaced the cabin air filter. Can't see any spills or leaks from the engine bay or on the ground. When you hear the blower motor running and have weak or misdirected airflow checking the vacuum source is … When they started up the AC after repairing the generator, there was quite a lot of Styrofoam balls on the bed and floor in the rear of the motorhome. it worked for me, but seriously cover your eyes Its not an everyday occurrence but still it happens from time to time. Got A/C? What causes the Air conditioner to blow black greasy foam out of the vents? Interior A couple of years ago, while traveling on Route 66 in humid Missouri, chunks of foam started blowing out of our dash vents, filling the cab with sticky bits of disintegrating material - quite a mess. The heat and the AC both work fine and the fan blows perfectly at all levels. So it's going back in and im going to tell them to take it outside and turn ac on high and watch the vents. Coolant may also drip on the passenger side floor. It will spew foam for a few months. Most newer cars have an easily … losing coolant and can smell antifreeze through the air vents once the engine is warmed up. There are any number of reasons cold air or no air is coming through the vents. It blows almost the same amount of heat out as when i … Solution: Use a better air filter. Ok for some reason my car blows out heat out of the vents when im in motion say like going 35mph. I took out the ac vents and used a shop vac to pull most of the material out. When im at a stop light i dont feel any air come out but as soon as i start moving the heat starts to come out ALL vents. Fix heater door foam comes of of the heater door and comes out the vents. Work the thumb wheel from one side to the other while checking the airflow. When I bought my car, there was some foam blowing out of the air conditioning. Well this guy didn't and he didn't have any heat coming out of the vents either. What are some possible reasons why this is happening. Step 1 - Most air control vents are equipped with a flow control door that is located at the vent outlet. So if you’re seeing black particles coming out of your air conditioner vents and you’re a fan of burning candles or your fireplace, the most likely culprit is soot. A cold winter day is no time to find out your car heater isn’t working. Bought the car new. It started to disintegrate and blow out the vents I took out my glovebox (4 screws and 1 10mm in corner) blew it out with compressed air and tried not to get nasty 15 year old foam in my eyes. The foam that forms the air deflection gates on the air controller deteriorates and begins to disintegrate. (which helped a tiny bit). At first I thought it was head-liner foam that had fallen down into the dash vents, but now I'm not sure. I am looking at replacement and the cost, what factors can happen if the foam is not properly replace immediately Thank you Billy Even with AC activated its still warm. 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