Prius (2001-03) :: Center Vents Don't Throw Air
Aug 1, 2011
I have an 01 Prius I bought used last summer. I have never been able to get air from the center vents or the floor. Last weekend I decided to troubleshoot the problem. I watched the servomotor (on the driver's side of the vent control box) to see if it did anything when I switched between defrost, floor and face and nothing happened. I took the servomotor off and manually moved the vent controls and I was able to get air out of the floor but no matter what position I put the levers/controls in, I was never able to get air out of the center vents.
I hooked the servomotor directly to the battery and it spun just fine.
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I recently purchased a 2010 Toyota Corolla. Over all good car and in pretty decent shape. The Only only issue I've found with it is the two center air vents are not blowing, nor does the a/c knob change the air flow. For example regardless of what air setting I have it on it's always the two foot vents and the outer door vents blowing. Granted the air temp is fine. It responds to whatever temp I want it and it gets plenty cold.
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How are you supposed to use this switch? (the switch below the clock) I'm also confused how this switch affects the overall pre-set temperature. Is this switch supposed to allow the air conditioning system in the center vents to get colder than the other vents? If so, how can that happen?
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Is it true that on auto setting there is no air blowing out of the center vents? It happened to me this morning with my 2016 GTI.
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It just happened yesterday on the freeway, as I hit a small bump. Need to mention this stretch of freeway has those extremely annoying ridges that make everything rattle inside the car, besides the deafening tire howling. But after they're gone, all used to be well. Yesterday, after said bump, this very loud noise behind the center air vents started all of a sudden. It increased with speed.
Sounded like a motor turning. Thought it was the NAV motor (which I never use), but opened it and closed it, and it functioned well. Tried the motor for the stereo cover, and also worked fine. When the motors were operating the sound persisted. The noise disappeared below 50 mph. And not even in broken pavement was present. After speeding above 50 again, now in smooth pavement, it was back. I guess it's there to stay... until 'killed'.
I HATE dealers going on a fishing expedition in my cars, so prefer to know what the heck is causing it, and preferably do it myself (don't trust the only dealer in town). I'll try to tackle it myself, but no way I can live with that noise, so a trip to the dealer seems almost certain, as I don't have a service manual yet to get behind the dash.
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About a week ago I noticed this weird noise that sounds like it's coming from inside of the center vents area/console.
The noise definitely only occurs when moving, or at least it seems that way. At idle there is no sound. The sound seems to get a little louder the faster I go.
It's kind of a "whirring" sound. It's not really loud and if someone that had never been in the car were driving they probably wouldn't even notice it. It almost sounds as if I have the heating/ac fan turned up high but I don't. The sound appears even if I have the heat/ac fan off.The heat/ac works fine.
It may have nothing to do with the heat/ac but I'm wondering if something could have got stuck in the vents from outside?
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4.0 v6 A/c works great at first. Then after a while stops blowing out the center dash vents. What to check? Still blows cold out the vents by each front door...
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I occasionally drill-down to check on pending codes, and my 2007 Prius likes to generate a LOT of them. Maybe pending codes don't count unless they escalate to an active code that triggers the check engine light.
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I recently purchased an '01 Prius that needed work. I was driving it last night, and noticed that the dash does not light around the heater controls or radio. The whole center dash area does not light with the headlight switch.
I took a look through the owners manual for any fuse that might control this, but did not find any. I would not think that all of the bulbs would be burned out.
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My steering wheel has a squeak when turning either left or right slightly from center.. I usually notice the squeak while stationary or parking. It's louder and more noticeable when it's hot outside.
Listening carefully, it seems to be coming from inside the steering column, not from linkages or joints from under the car. Looking for a exploded diagram of the steering column components, perhaps it's just a U joint (tilt?) that needs some lubing to make it quiet.
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I have a 2003 Grand am when I turn on the a/c it stalls out. I disconnected the compressor and it runs fine when turned on just no air . Could it be the compressor or the electrical?
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Just wondering if I will know via a check engine light if when my Diverter valve may act up. I don't really want to add a boost gauge if I can let the onboard diagnostics do the work for me. So if I loose boost will I know?
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My wife's Elentra has some center console lights out. A radio button (or two) is not lit and heat control button(s) as well. I don't remember specifics.. I'm going to check the fuse box when I get to it, but wanted to check here first. It seems like it's somewhat common problem. Fuse N25 is mentioned often.
Everything else is functioning, just the lights are out. It seems strange though that not entire section of controls is out, but part of one (radio) and part of other (heat). Does this sound like a fuse or maybe it's the bulbs. Or combination?
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I've got a 2001 4 motion passat and I am not getting any heat out of any vents.
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Would an exhaust leak throw CEL?
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So after installing the short throw shifter I ran into an issue. My reverse is actually first gear, i do not have second gear, 3-6 work fine so far and i do not have a reverse. also my shifter doesn't seem to move far enough to the left.
We took the short shifter out and put the factory one back in and it still doesn't work. Is it possible for me not to have to take it to VW? i feel like they're going to tell me I need to replace I don't need and how to fix it.
Also, I drive a 2013 jetta GLI but its the same set up for a mk6 GTI....
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We just took in a 2001 Grand Marq with just shy of 170,000 on the clock. Super clean old man's car, runs great. I took it for a test drive with it today, and I noticed the steering does not return to center after a turn. It seems to stop at about the 1/8-1/4 turn mark, and you have to manually have to turn it back the rest of the way. It makes for some odd feeling driving. Now the car has already been through our shop, but they did not see any problems. The tires are like new, and otherwise, it runs great?
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There's been an interesting progression of trouble with my 2001 Buick Century:
My heat/AC had been working fine for years. About a year ago, the dial which controls the force of air (off, low, high, max, etc.) broke. But the 'off' and 'max' portions still worked. I could get full blast, or nothing. I didn't do anything, because I could still get what I wanted.
Just yesterday, I switched my heat to max - and nothing! No air comes out at all now. Obviously this is problematic for the upcoming winter.
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I have a 2001 E150 and when i turn the AC/heat/air on it will only come out the defrost vents. Whenever i flip the switch left or right nothing comes out, but when i put it on defrost it works... but only through the defrost vents....
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My 'new to me' 01 Ex has 129k miles on it and the one problem is the steering. I read (all 34 pages of) the wander cure thread and I played with my steering box extensively over the last 3 weeks. The initial tightening really worked with the slack in the steering, as did adding air to the passenger front tire to even it out with the driver's side. But it did not cure everything. In fact, the tightening of the box revealed something else - the steering now exhibits what feels like binding. And now I must make minute corrections every second or two all the way down the road, even perfectly straight, flat roads. It's sorta driving me crazy(er) and my wife won't even consider driving it until it's fixed.
I was so caught up in diagnosing this problem that I completely missed that the steering wheel would not re-center itself after turns. My father noticed when he visited last weekend and tried to drive it but parked it after going around the block. If making a 90 degree turn, the wheel will maybe make it back to 45 degrees and stops. So you must manually turn the wheel back to center if you want to go straight.
So I've gone back and tried to loosen up the steering gears to start again, but now the gears seem tight regardless of how I adjust it.
I have already planned to replace the ball joints and get the alignment adjusted when I do the shocks and rear sway next week. Should i wait to see if the ball joints fix the problem or should i plan to replace the steering box at the same time? What say you all?
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I recently purchased a 01 Passat 1.8T and noticed a strong 'used oil' smell coming in through the vents, especially at stoplights; the vehicle continued to smell badly when parked and turned off.
After looking around the PCV system, I found a small check valve near the airbox that was dry-rotted and non-functioning. As I continued to search, I found a large PCV hose directly under the intake manifold closer to the firewall. This appears to be ~3/4" hose that appears to be missing a connector. It appears as though there was supposed to be some sort of male/male insert and some clamps that are supposed to connect these tubes.
Any diagram or a DIY replacement walk-through for the PCV sytem on the 1.8T? Now that I've found the pcv break, I'd really like to get it changed out.
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