Prius (Gen 2) :: Humming / Buzzing Sound When Depress The Brake To Power On
Apr 5, 2016
On my 2007 Prius, when I depress the brake to power the car on, it makes a simple, almost welcoming humming/buzzing sound. However, if I do it again within a couple minutes (for example, if I turn the car on to pull up, turn it off, and turn it on again), the noise when I depress the brake is different. When I press it down, it will make no sound for about a second or two, then make a deep 'thud' sound.
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I just got my Prius in August. The car makes a humming sound when I accelerate and brake. Is this normal?
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I have a very strange sound coming from the multi color display in the instrument cluster. Whenever the display is on (no need to start the car, just open the door) there is a humming or buzzing sound. Not very loud, but loud enough to get on my nerves.
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I have a 2008 Kia Rondo. Recently we took a trpi. Halfway there, we started to hear a humming/buzzing sound (similar to that of a remote control airplane). It was the loudest when we would stop at a stop light/sign, but would stop when the car was put into park. The noise grew louder and louder as the drive went on. The noise was coming from the front region of the car, but couldn't decipher exactly where. We were able to hear it from the inside of the car as well as the outside. The noise stopped once we reached our destination, but then started back up again on the way back home. Once home, it stopped again and our auto shop couldn't find anything wrong with it. What it could be. Hasn't done it since we've been home. Wondering if driving through the mountains put stress on it. What could be making that noise?
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I just came back from a long weekend and left my 2010 GTI in the garage at home. When I returned the battery was 100% dead. Got a friend to jump it and it refused to start for about 30 minutes. Finally it grudgingly turned over and eventually started. So I drove it around for an hour, came home, turned it off and tried to start it - to see if it had charged at all. Again it turned over very slowly, and eventually started up. Seems very strange that it's so slow to charge.
So now I have it on a trickle charger and with the engine off I noticed a weird humming/buzzing sound. It seems to be coming from underneath, somewhere in front/near the right rear wheel. I waited 30 minutes to see if it would turn off once the car cooled. But it's still running. I've never heard that before and no wonder the battery died. What's going on? This is a mystery.
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My 2006 Prius with 206k miles is making a loud buzzing/grumbling noise when I press down the brake and periodically when parked. It's coming from the general area of the brake pedal, under the steering wheel. See video for a recording of the sound:
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Was the warmest/hottest day of the year here so far and my black Prius had been parked in the sun all day. When I came to drive the car the a/c came on full power to lower the cabin temperature.
However, from the front of the car the two fans were making a really weird buzzing, humming noise (but were both spinning at high speed). Now I know a/c fans work flat out sometimes but I have never heard a noise like this before on a cars a/c. It almost sounded like the noise a jammed lawnmower makes, or some of the old lifts/elevators doors make. Almost an electrical buzzing noise of a solanoid but it was coming from the two fans.
Is this normal? Was it the fans or maybe the compressor or both? The a/c was working fine and was ice cold. When the cabin temperature reduced the noise reduced a disappeared with it. However, I did manage to repeat it by turning the a/c internal fan speed to full on a low temp setting.
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So I noticed this has happened a few times.. If I press on the brake pedal too hard, the indicator light will come on and then turn off a few moments after I depress the brake pedal. This has happened when the car is stationary as well as when I was coming to a stop, it's happened maybe 5 times since I picked the car up a few weeks ago. Is this normal behavior or an indication of a problem? Just an FYI, I'm not talking about when the indicators light up when first starting the car.. This is tied strictly to pressing the brake pedal hard.
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I have a 2003 Prius that I have had about 4 years. It has under 80,000 miles on it and I have the Ecrostech Scanner which I have had for about 3 years. For the time I have had the Ecrostech I have noticed times when the regenerative braking was not working when I would depress the brake pedal. I understand the regen does not work from about 7 mph and below but my system often does not work even when it is above that speed. I have not been able to force it into regen. It seems to have a mind of its own as in perhaps a faulty ecu.
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2011 F-250 Lariat with 38,000 miles. What is the cause or source of humming or buzzing noise from the under the hood that starts once I turn the truck off and close the door? Lasts from 3-4 minutes and only started noticing it in the last two thousand miles or so.
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Recently my brother in laws truck started making a buzzing sound while running and a much louder sound after it shuts off. Trying to track down the sound. Listen to the whole video because the end is where it gets loud.
6.7 powerstroke strange noise - YouTube
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I'm having several problems, and I'm wondering if they are related: Sometimes the heat/ac/vent blows on the windshield instead of where they are supposed to be. Occaisionally it works at first, and then changes after a few minutes to blow onto the windshield.
Sometimes I get a buzzing sound under the hood. Usually when I'm stopped, but sometimes while moving. The car idles high when this happens. If I tap the accelerator, this usually stops the noise and the idle drops to normal.
This morning, the brake warning light kept coming on while using the brake. The fluid level and pedal are OK, and the car stops OK. Then the buzzing sound came on, the engine light came on, and the brake warning light went out at the same time. The brake light hasn't come on since. The scanner tool indicates the IAC was running too fast.
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I recently bought a 2006 Ranger with supposedly 110000 miles... I don't think I made a good deal... because I found the stabilizer end link in terrible shape which seems suspicious for this mileage in my personal opinion!? But this isn't the reason I am posting today... I have a serious breaking issue and I couldn't find explanation yet.
My ABS Light is on. When I slowly brake at low speed and when the brake is almost completely depressed... I hear a low humming sound, and the brake pedal seems to momentarily drop back just slightly. This also happens when I'm going down hill and breaking. For the most part, the car breaks, and it's only every 8th or 10th time braking that I experience this issue.
My guess is this is linked to the ABS... but I can't afford expensive service and need to resolve this on my own.
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Normal to have a buzzing sound from the car while parked with the ac on? Its not terribly loud but can be heard inside the car with windows up.
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I Bought a 09 with 45k miles. I haven't had no issues till my return Trip from the snow, this car is perfect for all the traffic i deal with out here. I normally have my music up loud so i may have never notice it but when I was driving with baby sleeping I started hearing a buzzing sound happen when I braked. This sound was low at the start but now is very noticeable.
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Having an issue with my brake pedal. When the car sits for long periods of time, usually overnight, the brake pedal is extremely hard to depress. I have to really press down hard in order to start the ignition. Took it into my dealership, and they actually said there was a TSB issued for something to do with the brakes. Well, evidently, they fixed it, but the issue came back almost immediately, only this time it's worse. The brake pedal firms up after 3-4 hours of sitting.
Brakes feel fine once the ignition is turned on. I was told there's no issue with driving it, but I'm not so sure I trust what I was told.
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I've been having a randomly recurring problem with my 2004 Hyundai Elantra for several months now. I'll be driving along and will notice that my brake pedal won't depress. When I step off of the accelerator, it is like the brakes are already engaged. Eventually, the brake pedal won't depress at all and the car acts like the brakes are fully engaged. Sometimes I can let it sit for an hour or several hours and the brakes will readjust and I can move again. So far I have replaced both calipers, rotors, 2 brake hoses and the master cylinder, but I am still having this problem. My mechanic is flummoxed. Any time I have the car towed in, the brakes release by the time it arrives and he has no problem to observe.
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So I went into my garage last night to shut the door. I heard a slight buzzing/humming noise coming from the car. I narrowed the noise to under the truck of the vehicle. It sounded like a fuel pump was running. I don't know when it started, but it was about 5 hours after the car was driven last. After a little research, I found this in the manual page 8:
"Approximately five hours after the engine is turned off, you may hear sound coming from under the vehicle for several minutes. This is the sound of a fuel evaporation leakage check and it does not indicate a malfunction."
I started my car and it stopped after that. Could this be The case of why some people have dead batteries on the 2014? Maybe this runs to frequently or stays on too long?
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Pump buzzing/humming noise varies depending upon whether accelerating, coasting, or decelerating. Sound is reminiscent of a dentist drilling my teeth. Is loudest while accelerating, hardly noticeable while coasting, and somewhat noisy decelerating. Had one suggestion that the FWD torque placed on the steering rack causes the different noises. Haven't been able to do anything to quiet it.
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Purchased a used 2010 Gen III a few months ago and have noticed a fast buzz, felt through the floor and brake pedal. It is intermittent but the conditions needed are:
1) Air conditioning running at high speed
2) Vehicle in Drive
3) Immediately approaching a stop, and a few seconds after stopping.
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I have a 2nd generation prius and up now no problems but today my car continously makes a pretty loud buzzing sound if the car is on or off. No lights are on other than the maintenance reminder light as I currently have 57000 and waiting a little longer before I bring it in for the 60,000 check up.
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