Prius (2004-09) :: No Air Coming From Windshield Vents / Won't Defog
Feb 28, 2014
Today I have noticed that my windscreen won't defogged. Normally it will just takes 30-40 seconds for it to clear. It seems the air that blow to the windshield has blocked or it won't channelled the air to the windshield vents. I tried to feel the air at the windshield vents, but couldn't feel anything. The air seems to comes from the front and the legs only no matter what button/switched pressed. I think the air conditioning amplifier may be faulty. I am thinking of replace it. I have searched the internet, but so far I cannot see any tutorial how to replace it.
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So today the temperature dropped to around 25 degrees, and as such on my drive home the windows started fogging up. I decided to turn on the air and set it to windshield, after about 20 minutes the windshield is still not defogging, and I can only see a small spherical portion of the bottom part of the window as clear, while almost 80% of the window is still fogged up. I stopped at a red light and put my hand near where the air should be coming from and nothing is coming out. I noticed that no matter what option I select, no air is coming out of the windshield vents. I was able to get under the drivers side and take note of the motor, I had my sister move around from feet, to bi-level, to windshield, and in all cases I can see things moving, however no air is still moving from the vents near the windshield.
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My ex-wife has a 2008 Prius. When trying to get heat, either using Auto A/C or manual, the display panel shows that only the floor vents are open. However, forced air is flowing from the upper vents on the dash. The air from these vents is not warmed. It seems to be unheated outside air. It's unclear whether this is a new problem, since the owner doesn't know if this behavior has been there since she bought the car. She does report that the car has always taken a long time to get comfortable in winter.
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I purchased a used 2007 prius last month. Back then, I noticed a faint smell that reminded me of a barn, horse along those lines. I didn't smell too often because the car still smelled of whatever dealer cleaned with. Now that "fragrance" has worn off, the "horse" odor is more intense. I notice that it smells more in the back seat.
This morning I smelled the vent, and it seems to be coming from there.I heard it was the battery duct battery insulators that accumulate a sticky substance that smells.
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Recently I noticed that I still have hot air coming through the vents with the climate control system completely off. I can tell that the fan is off because it's not blowing through the vents but the vents are very hot.
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My a/c has worked just fine until about 30 minutes ago. Now, there is nothing coming out of the vents in the front, but plenty is coming out of the rear vents. What could this mean?
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When I turn on windshield defogger no air coming to defrost windshield. Air is coming fine from other vents. Is there a fuse I need to check or some other issue?
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The vents in my 2002 Prius are starting to become problematic. When I turn on the heat, the air is not coming out. When I hit the glove compartment, the air starts to come out, but it is very low and stops after a minute or two. I just want to know if the blower motor is dying, and how to replace it, if it is really the blower.
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My bride reports a musty smell, possibly coming from the A/C vents, in her new v5. I've been away from home for six weeks and have not driven the car since we brought it home from the dealer on Sept 2. In years past we had a series of Ford Tauruses that had this problem. Apparently moisture from condensation builds up somewhere in the system and mold/mildew results. We used to have to spray Lysol into the HVAC air intake to alleviate the problem for a while.
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I was driving today with no music on and noticed something strange. I heard something "roasting" in the backseat...and looks like the noise comes from the battery vents. It sounds more like "roasting" noise than fan noise. Do you know if the battery was overheating?
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Title pretty much says it all. There's a piece of black foam that appears to be slowly coming further out from where the windshield meets the dash. It's happening in two different places, but appears it may be one long piece. What is the purpose of this foam? Should I be concerned? Concerned enough to take it somewhere now, or just point it out at my first maintenance appointment?
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I have a highlander 2004. When I bought the car (used) I did not noticed a noise coming from the top (more) from top driver side Windshield. the sound is more of "fffff" as I drive faster the noise is more, and seems to be of closer to wind sound. But when you put hand against it, you do not feel any wind. And there is no leak/water coming in. Toyota mechanic looked at it, and came up with no obvious answers. Concluded that it is not Toyota windshield.
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Had a few warm days last week and noticed a lack of cooling from the HVAC system. Local temps cooled off a bit but I decided to see what I could find out before I got hot again.
Started playing with the system in the driveway and discovered good cooling capacity on the passenger side but just mildly cool air coming out of the drivers side vents. This seemed to be true on both the front and back. I hooked by laptop up and noticed single digit temps at the evaporator. When I brought the temps down on the climate control the right side exchanger would get down to around 12C but the Left would struggle to get to 22C and if I moved the passenger side requested temp up the drivers side exchanger temp would follow even though the requested temp on the drivers side was low. There was a display for the Left and Right regulating valves but they seemed parked at 0.0 unless I made a cabin temp change.
I am guessing the left regulating valve is the problem but know nothing of how this system works. 2004 Phaeton V8 ....
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I have a Camry 2008 LE model and there is an issue when the a/c knob is set to send air through the main vents (driver side, center console, and passenger). If it is a humid day, I see fog spots on the windshield near the windshield vents underneath it. I feel very slight air coming out of it if I put my hand over the vents.
Also a couple years back, my car got broken into so a glass shard did enter the passenger air vent -- so maybe that glass shard is somewhere in the air passage where it doesn't allow the windshield vents to be completely shut?
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My friend bought an 05 passat and he is having issues. The windows completely fog up within 10 minutes and they wont defog. He has had it to the dealer and they have spent hours trying to figure it out and they even called VW trying to find answers and got nothing. They asked about moisture under the carpet and various things but nothing.
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For months I've been hearing the sound of rushing air coming from the direction of the front passenger side door. I've been trying to ignore it, but it's been getting worse. Today I noticed what appears to be a narrow gap between the rubber stripping and the front windshield near the wiper blade tip. Could that be where air is leaking in?
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I have a noise coming from what seems like the front windshield area. It sounds like when you have a balloon full of air and open a small hole and let it out. That loud squealing noise that it makes is basically exactly the same as the noise I am experiencing.
It happens when I'm going 70mph in high winds or over 80mph without high winds. And when it happens it's constant.
I talked to the dealership and they told me it's fine... mostly because it happens randomly and it's hard to replicate unless you go 90 it always happens but they obviously aren't going to test drive my car going 90mph to find the noise.
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Coming home from work tonight, Radio turned down, Air off/Heat off. Whats the sound coming from the dash around the radio/heater controls/ vents? Can't really explain the noise, but its like a boiling/clicking/scratching noise.
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For close to 6 months I drove around with a squeak that sounded like a bird chirping coming from my dashboard windshield area. I tried listening everywhere while driving and could never pinpoint the squeak that was driving me crazy. For whatever reason, I adjusted the rubber bumper stops for the hood and the chirp went away. I had to post this just in case there were others with the annoying squeak.
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My windshield and side window defroster vents have not been working but every other air feature on the air system works fine. When I switch to the defroster, air just continues to come out of the front vents and not out of the defroster vent located on the top of the dash. I plan on going to dealership to have it checked out. I have looked through my hayne's book with no luck. One of my buddies said it could be a relay or something but I have not been able to find a relay specific to the defroster. Just wanted to get this sorted out because it takes longer than usual to defog/defrost my windows now without this feature working correctly.
I have a 2003 Honda Accord EX V-6 Coupe with dual climate control.
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I have a 2002 Ex with the 7.3. Every time I put it into 4x4, the A/C automatically switches to the windshield defrost vents. After a couple minutes it switches back the the A/C vents. I'm assuming that isn't normal.
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