Prius (Gen 3) :: 2012 - Humming Sound When Accelerate Or Brake
Oct 12, 2012
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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Oct 12, 2012
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Prius (Gen 2) :: Humming / Buzzing Sound When Depress The Brake To Power On
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.
View 3 RepliesFord F-150 (2009-2014) :: 2012 - Cold Start Humming Sound
I have a 2012 F-150 Platinum 6.2L. Every morning after a cold start, I get this humming sound until the engine heats up. It does seem to get a little quieter when I'm moving but not much. This only happens after the first start of the day and has only started doing this since it's been cold (20-30 F).
YouTube ......
Camry 2012+ :: 2013 SE With Faint Droning / Humming Sound - Suspension Noise?
I love the car, but had a few small gripes, including ride firmness and road noise. Well, the ride firmness has definitely calmed down a great deal over the first 3500 miles to now I find it has a perfect balance of handling vs. comfort. It's firm, but the bumps are not as jarring as those first 500 miles or so. I'm very happy with it.
The 2nd issue I hd/have, is road noise... or rather... I think... suspension noise. It's a faint droning/humming sound that I think comes mostly from the rear. You can start hearing it at 20-30mph on all but the smoothest of roads. The noise seems to be *in addition* to the very, very minimal tire noise I hear from the very nice stock Michelins. The harsher the road, the louder the noise of course.
My guess (and it's only a guess?) is that the metal bushing ('pillow ball') in the rear along with the other firmer suspension parts are the primary cause of this noise.
So I have tried a couple of things to try and counteract this noise:
1) Put D'amplifier Pro in the trunk - Got down the bare metal and put the stuff all of the place back there... Above the wheel wells also.
This did not stop the noise I hear.
2) I then put some sound deadening foam mats above both rear wheel wells.
This did not work.
The strange thing is that this noise is pretty faint, but unmistakable... however if I move my head forward (say, right in line with the steering wheel) 2 feet.... I barely hear it. But when I move back to the normal driving position, there it is.
Camry 2012+ :: Humming Sound In Trunk Area - Stopped When Pressed Smart Key Button
I heard a humming (motor) sound coming from my trunk area today. Car was off since previous evening. Sounded like maybe electric fuel pump? It stopped when I pressed smart key button and is not doing it now, but......
View 14 RepliesAccent RB (2012+) :: Persistent Squeaking Sound Coming Out Of Car When Accelerate
I have a squeaking sound that's coming out of my car when I accelerate and it has been persistent for the past few weeks. I'd like to fix it myself if possible. It seems like it's just a loose belt, but I'm not sure. If I don't have a lift, jack, or car mechanic experience is it reasonable to think that I could figure it out safely? I'm relatively good with my hands and at figuring things out. Are there any serious risks of damage to myself or the car from me tampering with the belts?
View 2 RepliesFord Ranger / B-Series :: 2006 - Low Humming Sound And Brake Pedal Momentarily Drop Back Just Slightly When Going Downhill
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.
Accent RB (2012+) :: Knocking Metal Rattling Sound When Accelerate Up A Hill Or Slight Incline
Since about 5000 km, I have had a knocking metal rattling sound happening when I accelerate up a hill or a slight incline. It has happened a few times on flat road as well just more prevalent on the uphill battles. Now I assumed it was jus something loose that was rattling since I installed a cold air intake and had installed hid lights(I thought the ballast was banging on something). I tried and tried to find the rattle but I had no success. I read up on here about other people suffering the same problem and that running higher octane gas would solve it well I tried 89 and it was still there just not as much and I recently started using 91 and its gone haven't heard it at all.
View 132 RepliesPrius (Gen 3) :: 2012 - Humming Noise From Rear Of Car When Parked In Garage
Got home from work the other day, shut down my 2012 Prius 4 and went into the house. A couple of hours later went into the garage to drop a trash bag and heard a humming/whirling sound from the garage. Walked around the Prius and isolated it coming from the bottom rear of the car. Went and got key, turned the car on, then off again and the noise ceased. What that was? Fuel pump maybe? And why did this occur?
View 2 RepliesPrius (Gen 3) :: Humming Sound In Rear End - Louder When Going Fast
My 2010 is humming like bad.....I think it's the rear. the faster you go, the louder it is. Put new tires on - same noise.
View 5 RepliesPrius (2004-09) :: Humming Sound When Car Is Coasting With Gas Engine Off
My 2008 Prius had a front quarter panel replaced after my wife back in to a fire hydrant.The body work looks fine , no issue there, but now when the car is coasting with the gas engine off you can hear a humming sound that was not there before the repair.Also it does,nt seem to be recharging the hybrid battery at the same rate.My thought is maybe the body shop caused some damage to MG1 by spinning the front tires on a emision testing machine or rollers.Does special precautions would have to be used when testing wheel clearances after a quarter panel replacement on a hybrid? Would a body shop need to do this ?
View 2 RepliesPrius (2010-12) :: Low Level Humming Sound At Idle
2010, purchased new, 89k. Never a hint of a problem. Last few days, I've notice a low level humming sound at idle. Probably there at speed and swamped by road noise. No change in performance. Temps in the 85 t0 90 range, with AC always at Auto, and at 72.
View 8 RepliesPrius V :: 2012 Makes A Humming Noise / High And Low Pitch But No Longer Than 2 Minutes
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.
View 7 RepliesPrius (2004-09) :: Humming Sound Occur When AC Turns On Or Speed Changes
When my AC turns on or changes speed - a humming sound occurs. It only lasts for about 1 - 2 seconds.
Is this normal
It sounds similar (higher pitched, but not as loud) to the humming you hear when you turn the vehicle off.
Prius Plug-in 2012-15 :: Loud Humming Noise From Right Rear Wheel Well Area After Charge Complete
Happened to go down to garage to get something from pip about 3 hours after charge was complete and noticed loud hum coming from right rear wheel well area.
We had not had any lightning storms, electrical interruptions or anything odd; house is on whole house surge protection, and 240v evse has been working fine.
Hum disappeared when car was booted up in ev for a moment and then turned off. Hasn't come back on in an hour.
Prius (Gen 3) :: 2012 - Rattling Noise Almost Each Time When Accelerate
When I accelerate I notice a rattling noise almost each time. Is it bad gas? I have been getting gas (90-95% of the time) at the same gas station for years, including the whole time with my 2011.
Also for the first time today i got an error message on my screen for the radio that says something to the effect that the USB has too much power consumption and will not run.
When I powered off and powered back on after lunch it started working again. I never had either problem with my 2011.
Prius Plug-in 2012-15 :: Quick Way To Accelerate In EV Of HV ONLY Mode?
PiP or traditional Prius users could tell me the quickest way to accelerate when in EV mode of HV ONLY mode? So I find acceleration is good in TRUE EV mode where I can keep up with regular traffic from a dead stop, however after I have used that batteries resources up I try to use EV of the HV only mode as much as possible.
I find that in EV of HV only mode to be so slow from a dead stop. I try to press the pedal so that the I go to the halfway bar or max of EV mode. However it barely gets the car moving. I figure this is how the traditional Prius works. I think if I was to try to use this EV power to get to 25 mph it would take 15 seconds!
Prius (2004-09) :: Won't Go Over 22 MPH / Car Started To Accelerate And Brake Itself
Today, we got a flat tire, so went to put spare on. The jack bent when we jacket it up..so had to borrow jack from neighbor. Once we got the spare on, it made a funny noise..on the way home, it wouldn't drive over 22 MPH, and once we replaced the original tire (got a new one/fixed), the car started to accelerate and brake itself!! It was definitely not normal. And there was no resistance to the pedal or floor mat interference.
I believe it was a computer problem? Anyways, when you hit the brake (cause it was going so fast) you could hear the engine strain as it groaned to a stop. Got the car home and in the garage for the night..That was work in itself, not driving it through the wall! Arranged to get the Prius towed to Toyota in the morning..see what they can do. It's intermittent when it does this, and very weird.
Prius (2004-09) :: Continuous Whirling Or Humming Sound When Engine Starts - Possible Bad Transmission?
My wife's 2006 Prius is having some problems. The car has 187,000 miles on it. When the engine starts it makes a continuous whirling or humming sound. WHen I try to drive it has minimal power and can not be driven above 15-20 mph on my street. I bought an inexpensive Actron code reader and got the following codes. P0A92 P0300 P0303 P0304 P3191. Does it sound like a definite transmission problem and those other codes are caused by the transmission problem.
View 13 RepliesPrius (2010-12) :: High-pitched Electrical Humming Sound From Hood In Ready Mode
My Prius IV with about 10K miles started to emit a high-pitched electrical humming sound under the hood when it was in Ready mode. It did not have this sound before. I opened the hood and found the sound was coming from somewhere around/under the engine area. I want to know if this is normal on Gen 3 Prius? I have seen post on the same noise in Gen 2 Prius but the posts (thread) stopped without a resolution.
View 19 RepliesCamry :: 2007 - Whenever Accelerate Having Humming / Whining Noise
I was installing a new engine mount the one on the tranny and one of my jack stands failed on me, luckily I wasn't under the car. I always put a tire under the car just in case and it worked for me, but now whenever I accelerate I have a humming/whining noise. Can this be the transmission? This is on the 07 Camry 4 Cylinder.
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