Prius (2004-09) :: Electric Buzzing / Whirring Noise - Not Vibration?
Sep 22, 2012
My girlfriend just picked up a 2007 Prius Touring, 78,000 miles, original owner. It was a private sale and I took a look at it for her. I'm just learning about the Prius and stuff to look for, but everything looked good on it to me. After purchasing it she noticed a noise coming from the drivers side dash. I searched here and saw that dash rattles are common, but this sounds more like an electric buzzing/whirring noise. The duration of the noise is always about 2 to 3 seconds in length, then it stops. There doesn't seem to be any common factor for when it occurs. Is there anything electric on the drives side dash (far left side, closest to the window), that might be making this noise? It's not super loud, you can't hear it if the radio is on.
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This is strange. Twice in the past week I have gone in my garage at night, and my Prius'10 is make a buzzing whirring noise. Without touching it ... it's just sitting there making a buzzing noise. This is hours after using the car.
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I have a 2009 Prius with about 56K miles on it that I absolutely love. Now I know from reading in the forums an my own experience that when the A/C compressor starts running you hear an electric whirring sound. My question is... is it a cause for concern when the sound it makes seems different -- the pitch sounds lower to me now. The A/C still works fine, but I didn't know if this changing sound means the compressor was on the way out.
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I have a 2010 IV and after driving for an extended period and then shutting the car off I get a loud noise about a minute or a little more after shutdown. The best I can describe it is that it sounds like someone is dropping a 3 pound dead chicken from about 10 feet up onto my hood. It is consistent and is not any of the whirring or buzzing noises I normally hear. I also have a 2009 Touring and have never heard anything like this.
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For about a year and a half I have had an "undiagnosable" noise that started as an intermittent metallic buzzing and has evolved into a constant whirring/grinding noise. The tempo of the noise increases when accelerating; occurs at all speeds and at idle. People say they know when I am approaching they can hear my car from about two blocks away.
My regular 20 year mechanic checked transmission, replaced timing belt (at 65K; now have about 74K); all idler pulleys; checked alternator; He thinks is is the AC drive pulley on the compressor; Hyundai dealership did not know what it is; laymen have suggested is is a power steering pump, reservoir issue. Power steering fluid level is fine. Otherwise, the performance of the car is fine.
Engine is 3.5L V6; 2004, about 74+K
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I ventured into the garage late last night and heard a whirring noise like an electric motor coming from my Prius. I didn't have my smart key with me. I checked the doors to see if any were ajar. The whirring kept going. After a few minutes, it stopped.
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When sitting at redlight, engine off, vibration seen and felt when electric motor is active.
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Bought a brand new 2012 Prius in California - Power Toyota in Irvine. It was heavily raining so did not test drive. Package 3.Next day noticed that there was excessive road feel and buzzing like vibration.Took the car in and they noticed it too.
Changed Goodyears to Yokohoma, checked suspension and tire pressure. Issue did not go away. It is subtle but constant. Dealership said there is nothing wrong with the car and every car drives differently. Offered to change car with me taking a hit of 5000 dollars. It is like driving on a stone like rough surface with a buzz like vibration.Other cars I test drove did not have this. Two of my friends have 10 and 11 Prius they did not have the problem. They also felt the Buzz/Vibration in my car.
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I have a 2004 Pontiac Montana, and it just started making a low buzzing vibration noise when it's in motion. tone/pitch only changes with vehicle speed, not engine RPM. It becomes noticeable at about 20 MPH. Pitch starts low, gets a bit higher and faster as speed increases. Have looked for anything loose, nothing found. Braking is not a factor in the sound. Tires are good, Engine doesn't seem to be tied to the noise. Nothing noticed on body panels, air dam, etc... I suspect either transmission or possibly U-Joints.
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My new 2013 prius c engine makes buzzing, whirring, clicking noises, especially when speeding up or slowing down. Why?
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I have a 1993 E350 Econoline-based RV. The blower motor intermittently makes a horrible whirring/buzzing sound, usually if on position 3 or 4 (high). Doesn't stop until I turn the HVAC to Off. The blower motor vibrates quite a bit while making this noise (verified with my hand). The problem occurs even if the engine isn't running. This started a few years ago, and has simply gotten worse.
Since it runs OK at the lower speeds (until the problems start with the higher speeds), I think that means I can rule out something simple like debris? Also, when the engine is under load (climbing hills, etc.), the blower fan cuts out. Could that be a resistor problem, or something else?
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For about a year and a half I have had an "undiagnosable" noise that started as an intermittent metallic buzzing and has evolved into a constant whirring/grinding noise. The tempo of the noise increases when accelerating; occurs at all speeds and at idle. People say they know when I am approaching they can hear my car from about two blocks away. My regular 20 year mechanic checked transmission, replaced timing belt (at 65K; now have about 74K); all idler pulleys; checked alternator; He thinks is is the AC drive pulley on the compressor; Hyundai dealership did not know what it is; laymen have suggested is is a power steering pump, reservoir issue. Power steering fluid level is fine. Otherwise, the performance of the car is fine.
Engine is 3.5L V6; 2004, about 74+K
See more at: [URL] ....
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We've owned our 07 since purchased new in 06. It's always made this noise, but it used to be for a short period of time (1-2 min). Now it goes on and on for 5-10 min. It sounds like it's getting "stuck" and starting the cycle over.
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I have a 2005 Prius with 218,000 miles. Over the past month or two it's started making a horrible noise, which has finally gotten to the point that I can barely stand driving it. I used to keep my radio around 25 or so, but now need to crank it to twice that to hear anything. I can't tell what it is - it sounds vaguely like wheel bearings, but somehow different. The front bearings and a trans drain/fill was done by an independent shop 6,000 miles ago. That shop says the noise is the transmission and definitely not the bearings. My Toyota dealer says the noise is the bearings and definitely not the transmission.
Here are two videos I took this afternoon, which seem to more or less capture it, though it does sound a bit different recorded on a phone than in the cabin:
(this one has a clearer example of the noise)
Background:
I didn't have any complaints with the car until just before the 200,000 mile service was due, when I started hearing front bearing noise (I've had bearings done in about 5 vehicles, so it sounded pretty obvious to me). I brought it to the dealer and was quoted an outrageous amount for front hub assemblies (they told me they couldn't do the bearings, only the whole hub assembly), sway bar end links, alignment, transmission flush, tire rotation and the engine top end service.
I got a much better quote from my local mechanic who I've used for about 3 years, so I had him do the work. This was back in June, at 212,417. He said that they'd never done the flush on a Prius transmission before, but they had the shop manual and were sure of the procedure, and that their Valvoline rep confirmed the correct fluid, and gave them a written warranty in case of any problems. He did note that "a fair amount of metal shavings came out with the old fluid" when they did a drain and fill (not a flush). He also told me that the tires were worn unevenly so I could expect a bit of road noise after the rotation and re-alignment. They an oil change, sway bar end links, front bearings, tire rotation, alignment and reans drain and fill with Valvoline Max ATF, "Toyota Type WS fluid spec." He told me the same thing about the front hubs being complete assemblies, and the part he listed (PBR930641) appears to agree with that.
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While driving, hear a whirring sound, happens about every ten seconds, lasting for about two...after getting home, shut off engine and this sound continued. Turned on, turned off, still continued. When off, occurs about every 20 seconds.
Continued for the 10-15 minutes I was in the garage. Opened the engine and definitely coming from under the Synergy Hybrid box.
Went out four hours later, and quiet. When I opened the door, sound went on again, lasting for 20-25 seconds....It then stopped and started again, occurring every 15-20 seconds, lasting for about 3 seconds.
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I am experiencing this whirring/grinding noise:
Which is the same as this thread : Grinding Noise from Dash | PriusChat
It occurs intermittently when starting up the car, though if I then turn the car off (as in my video) the noise continues.
On that thread the vehicle was in warranty and was fixed by replacing the MFD touchscreen. My 2006 UK Prius is (I believe) out of warranty, and the touchscreen/MFD seems to be working fine. Is there anything I can do preventative on this?
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So every once in a while, my A/C starts to sound like it's struggling. The force of the air gets stronger and weaker, and it starts to make a whirring noise (much louder than it should be). The temperature is fine, it's just the blowing air.
It will continue like this for weeks or months, then eventually when I start the car (particularly if I'm in my parking garage at work for some reason?!?! - could be a coincidence) the A/C won't blow at all. If I hold my hand near the vent, I can feel cold air - but it's just sitting there, not getting blown into the cabin.
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On our 2008 (26,000 miles), I've started to notice a "buzzing" noise (best way to describe it) from under the hood when the air conditioner is first turned on. Never noticed it before, but that doesn't mean it wasn't there.
If I drive the car with the ac on, then park the car for 30 minutes or so, it seems to not occur when restarting the car and the ac. A little vague, I know. Sound normal to you?
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Vibration/shuttering feeling when on electric driving at low speeds 5mph or less or when letting car pull itself under creep in reverse/forward gears. it is almost like your driving over a rumble strip at low speed with no unusual sounds or noises. just feels a little jerky. it has been doing this since i got the car a year ago and no codes are thrown. trans fluid was changed about 5k miles ago at 87k and there was no unusual coloring, or metal in the fluid or on the plug. it was darker red but not burnt or foul smelling by any means. could this be a loose cv joint or drive shaft?
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What I have happening is clunking that can be felt in the pedals and dead pedal at random time. Bad vibration can be felt through the cabin but this is hard to quantify since I already had VF mounts, I'm lowered on PSS9's, have camber plates, etc etc. It just seems to me that the vibration has gotten worse than the "normal" vibration these mods would introduce. Whirring/rotational noise that comes and goes and seems to be right in front of the the driver's seat. It also sometimes seems to go away if I am cruising down the road and I push the clutch in.
Crunching noise (almost like a CV joint which is shot) but this noise appears randomly at various speeds and when driving straight. All of this is pointing me more and more towards a tranny problem which is not what I want to hear but I also don't want to keep driving my car without knowing what is wrong with it. One note is I did install the trans shim, replaced black cap on end of trans in Feb and didn't notice anything out of the ordinary at that time
I have pulled the driver's axle 3 times in the last month and can find nothing wrong with it. I have pulled the suspension apart on the entire front end and found/see nothing. I have pulled, twisted, shaken, etc everything looking for bad or worn parts/bushings and can find nothing.
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Last week, I went out to my garage to investigate a motion sensor event that shouldn't have occured. It was about 3:00 in the morning. The Prius had been powered off for probably 8 hours or more.
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