Prius Plug-in 2012-15 :: High Frequency Pitch Sound
Sep 24, 2012
When I test drive the PIP, I kept hearing a high frequency pitch noise whenever the car was accelerating. It almost sounds like when you lightly touch the trigger on a cordless drill. Sales guy and my wife couldn't hear it, but I do have extremely sensitive hearing.
A quick search didn't reveal anything, so I am wondering if this is a problem, or maybe part of the pedestrian warning system (although it happens at higher speeds as well).
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I'm rolling down the freeway in stop and go traffic, so I have been EV stacking. Clicked from EV to HV several times over the course of 5 minutes. Then, I hear this fairly high pitched revving sound - even and constant rev up, not rev/idle/rev. I thought it was the truck next to me, so I turn down the radio and away from the truck but it happened again. I would stomp on the gas for a moment, and it would subside - not completely because it would start doing it again very soon. I'm not accelerating, but it would be like throwing it into neutral and revving. When I come to a complete stop, it would not go to EV - the light isn't on like when it is warming up the ICE.
My exit was coming up soon, so I would alternate pumping the brake and gas to get it to stop. Only when I was at the light that I powered off the car to reboot. Since then, it did not recur. Strange... Perhaps related, but I doubt it - I had bumped into a vehicle around 3-4 mph the day before. I was... drowsy.
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My first VW was a 2001 4-door Golf (Silver), traded to 2003 GTI (Silverstone), traded to 2006 Jetta Wagon (Blue). Then the wagon was traded for a SUV. Well last week, I have decided to pick up my 4th VW. It's a 2012 CSG 4-door GTI.
After driving the car for a week, and putting on 350 miles, I heard a high pitch continous "whistling" sound from the engine. Took the car to the dealer this afternoon. Tech came out and loosened the coolant reservoir. I heard a "pooof", sound of air build up. The tech said VW is aware of this problem. Something to do with the water pump bearing. It has to be replaced. They took the car in to replace the water pump.
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Have hissing sound from prius c during ev mode? Mine has it, like whistling/ high frequency sound.....
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I have a 2013 Prius c #2. At 62 mph and faster there is a high pitch sound that gets louder the faster it goes. I have asked two other Prius c owner's and they don't hear it. You will need to roll up the windows and turn the radio off to hear this.
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It's been cold, but I've been driving. When I park and power down, I'm hearing a high-pitch sound...like a fàn...it lasts about 10 seconds.
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My Pruis v makes a humming noise. Sometimes. Doesn't happen all the time. Don't know when it will happen. When it does happen, the car makes a humming noise. High pitch and low pitch-no longer than 2 minutes. Seems to be coming from the right side of the vehicle. It is embarassing when we have friends in the car, the noise comes on , and the friend asks, 'what's that noise' and i shrug my shoulders-i don't know.Took it to service. Manager said he has to hear it to determine what/where it is coming from. If it isn't making the noise, he can't tell me where it is coming from. Took it back today and now we have a loaner so he can drive it for a couple of days to try to hear the noise.
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I went to go start my LS460... put the heat on, its fine.. when I turn the heat up on high I get this annoying high pitched sound. It has to do with the heat system because when I turn it off it goes away... I'm scared to keep the car running...
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It's been three days since I topped off my tank in my Plug-In and I have been running almost entirely in EV Mode. Today, I had gone 153 miles so I topped off my tank again. The pump clicked off at 0.37 gal. I squeezed the pump handle two more times and got the gas up to 0.49 gal. That comes out to 312 MPG. When I entered it into Fuelly, it did not register the MPG. The last time it did when it was 112 MPG. I guess 312 MPG is way out of range of what Fuelly will accept.
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I was doing some N coasting, mostly because it's a pain to try to keep regen at 0, and I noticed while the engine will start idling in drive at ~64mph (62mph GPS I imagine), the system indicates it'll stay off above that if I stay in N in EV mode. On the plus side, it can make for some higher speed engine-off coasting, but do that could push MG2's speed too high?
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2014 Camry, 4 cyl. 65K ... Wife's car has developed a vibration that is going to be hard to get a dealership service group to troubleshoot due to randomness. I drove it for 30-45 mins today and have this description:
-Vibration, either described as a 'buzz' or a 'high frequency vibration'
-Happens in the 28-38mph range (different points)
-Under very slight acceleration. (hard acceleration efforts produce nothing)
-Can't swear to it, but feel like it is always in 'high' gear
-feel it in 'seat of pants', NOT through the steering wheel
-Is faint on sound, but you can hear something
-Is typically only a second or two
-Is very hard to 'create', but then happens unexpectedly.
-My wife first reported it to me, and I took my son on the test drive today and he could feel it as well when it hit, but couldn't pinpoint it as it comes and goes so quickly, but again, you feel it in the seat/butt more than anywhere else.
I've checked lug nuts to try to eliminate something easy and they are fine.
Since it is relatively slow speeds and under very slight acceleration, can there be a 'solenoid' that is creating a false shift effort, but just vibrates the trans instead? Without any info other than what I have stated above, I'm leaning toward transmission, but again, probably not enough info to go on....
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Last night around 1:00, I was awakened by a noise I think was coming from my car parked below my window. It was plugged in at the time. I heard a loud, high pitched whine, followed by a couple of knocks or thumps, then a sound like R2D2 makes when he turns his head, then a couple more knocks, and another R2D2 noise. I think I may also have seen lights flashing around the the edges of my blackout blinds, but am not sure, since I had just been sound asleep.
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This is on an 2012 SEL, 34K on it. Since the last couple of months, I have noticed that there some wub-wub-wub sound coming the wheels, well, at least from the road surface while drivng on highway speeds.
The sound is just like something is touching the tires, but can't be sure. I may have sensed some very minute shaking as well which may seem correlating with the wub-wub frequency. But as you can see, I am not quite sure how describe it. It is not a distinct sound, not something very obvious. But it is there. I asked my SO too, and both of use can notice the sound independently, so it is perfectly reproducible. The sound appears to be coming from the front, but it is hard to pin point. I also tried opening the window at 65 mph, but the wind and road noise just drowns out all other sounds.
I have thought of getting its wheels balanced as the first step. Went to Costco but apparently they balance only the wheel with tires sold by them on them. I am thinking of taking it to the dealership but want to be prepared by some basic info myself. Hence this question. Hopefully, they wont come and tell me that the wheel drive shaft or some such needs to be changed.
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247,000 miles on '98 Toyota Camry as of last summer, car owed us nothing. Suddenly lost oil a month after regular oil change, ruined engine. Mechanic found used engine from totaled car (w/ approx 65,000 miles). Current problems:
1. speedometer/odometer not working,
2. heater/blower stopped working this week, blower makes a LOUD, HIGH FREQUENCY sound, sort of like a siren.
Was hoping to get another 2 years from her considering recent cash outlay. The mechanic couldn't figure out issue #1, and he hasn't looked at it since #2 started this week. I guess we can live w/ issue #1, but #2 has to be fixed ...
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Found the answer... it's the brake booster pump...
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Often when I am turning the steering wheel, even a little it now seems, I hear a whooshing/rubbing sound and feel just a little bit of that rubbing. It feels/sounds like it's coming from the housing right behind the wheel itself, maybe where the shaft bearing is. Is this normal?
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I have a 4 cylinder 2012 Toyota Camry SE. It is 3 months old and has 2,300 miles.
My husband and I notice a high pitch humming noise that happens mainly on the freeway, when you get over 45 mph. We tried ruling out different things like, bluetooth, radio, air conditioner, wind noise etc. We realized that the noise happens with you push on the accelerator pedal. If you hold the pedal to maintain speed, it does not happen. Only when you push the accelerator pedal. The noise was more noticeable when I drove it up in the mountains and had to push on the accelerator pedal off and on to maneuver turns and up hills.
I figure that we can bring it up to our dealer in October at our 5,000 mile service.
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So i have a '06 2.0t 6spdman passat. I started getting this high pitch sound (like a boost leak) when under hard acceleration from second gear and up. I went to the dealer today and they replaced my PCV system, and told me that was the noise i was hearing. Pulled out of the dealer like half a block and same thing happened. Then the tech went with me heard the noise, went back put it on a lift. And proceeded to just rev the engine. They say its my Intake system, yet I have had it on the car for 2 and a half years. Could it possibly be the DV???
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what could be causing this. The faster I go the higher the pitch sound. It only occurs when pressing the gas pedal. As soon as I let off the gas the noise is gone.
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According to the manual the high pitch sound is to let driver know that the pads are worn out but i checked and my pad still very thick after 15k miles.?
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Is this normal for the Camry? When you're flooring the car besides the typical roar I hear like a small high pitch noise, it's gone once I let go of the gas. I tested it & start to hear it at about 4000RPMs I believe. Recorded it on video but you can't hear it at all on video.
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