Prius C :: Noise Like Some Small Electric Motor Running?
Dec 8, 2012
I went out to my garage a minute ago and heard my C making a weird noise. Like a small electric motor running. I finally pinpointed the sound to the bottom of the car back towards the fuel tank. At this point I thought my fuel pump was powered up because it sure did sound a little like that. I was saying to myself at that point that I am sure glad the car is still under warranty. So I went to get the SKS fob to start it up, hoping the sound would just go away. While sitting in the car prior to starting it, it occurred to me that maybe I should remove the fuel cap first. While opening it a slight "whoosh" occurred blowing fumes in my face when removing the cap and the farting promptly went away. The tank is down to two segments level wise, it is cooling down this time of the day, but I did get back from a long drive a few hours ago, so I can't see how the fuel or vapors were expanding enough to release through a pressure valve. So if you car is farting, remove the gas cap first before panicking.
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I have a 2013 ES 350. Last night about 5 hours after the engine had been turned off, we noticed a strange noise coming from under the rear of the car? It sounded like a small electric motor was running. I started the car and turned it off. The noise had quit. This is actually the second time this happened.
I got under the car to try and determine the exact location of the noise, It sounded to be coming from the gas tank area. Could it be a fuel pump kicking on?
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For the last few weeks, it has seemed that the battery gauge on my 2002 has been half full more often than it should. I admit that I have no good science for this determination, but about half the time when I return home from work the gauge shows half full, and it returns to full after about 1 - 2 miles of driving. The car has about 122K miles on it.
Today I took a long drive through some pretty steep terrain toward the New River Gorge in WVA. Round trip it was about 750 miles. On the way home, I got an error on the console. I'm not sure what it was, but on the main display there were three boxes with writing. I didn't read them as I was pulling off to the shoulder. By the time I got there, the warning was gone. I turned the car off and restarted it. Everything looked good and I headed the remaining 10 miles home.
Once home, when I turned the car off, I heard a vibrating noise from (I think) the left side of the hood for about 5 - 10 seconds. I turned the car on again, and there is a vibrating sound, and the same turnoff problem.
Is this the final death knell of my traction battery? I have a 120K servicing due about now. I have been planning a reinvolt battery, but it is a bit of a drive away. Should I consider trailering the car down?
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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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A quick question, currently an observation.. but a concern. we purchased our 2012v used at 55k miles.. She's running great, MPG's are above rated expectations. (ave 47.2 so far) We are currently @ ~59400 miles.. So, all seems OK w/the exception of this strange noise.. I'm familiar with the typical prox pulse sound at low EV speeds.. and this noise is not that one.
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Just walked by the back end of my new Prius III and heard what sounded like a electric motor running from the general area of the exhaust pipe at the right rear end of the car. This was about 5 hours after I last drove it.
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I have a 2014 Lexus ES300h. I just started noticing that after 2 to 4 hours after turning the car was turned off, I am finding what sounds like the electric motor running. There is a buzzing sound. I can turn the car back on for a few mins and then back off, the electric buzzing sound goes away.
Since owning the car, I've never found the car buzzing. It sounds like the electric motor is charging the batteries. Do I need to have this checked? I have 28k miles on my car and have never had an issue.
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I have a 2000 F-350 diesel and the electric vacuum pump went out. I bought a new one from napa and it would not stop pumping. Checked for leaks and found none. If I unplug the hose from the vacuum can the next day, you can hear it suck air so it seems I am holding vacuum. Problem is I burnt out the new pump in two weeks from running all the time. Bought another one and same problem.
So now I plug the electrical in and let it build up vacuum for a couple of minutes and then disconnect it so it won't burn out and I am good for days on vent controls and 4x4. If there has been a bad batch of pumps out there? I also unplugged the hose from the pump to the holding tank and put my finger over where the pump sucks and it still did not shut off.
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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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Does the gen 3 prius use electric motor only when in reverse? Reason I'm asking is that, I was in reverse and didn't see a rock that prevented me to move and keep pressing on the gas pedal and got no response and throttle response was zero even on the HSI screen. Had to move forward and back to reverse to gain momentum to go over the rock. Just a weird feeling knowing that the gas motor didn't even kick in even when pressing on the gas pedal.
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I have a '12 F250 w/ 6.7 diesel. Lately when I turn off the ignition after a few seconds I hear a noise that sounds like a small electric pump coming from under the hood on the passenger side.
This also happened a while back but at the time the service people said they could not get it to do that and it eventually stopped.
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I have a 2009 Kia Sedona that is in great condition. I noticed an odd thing today. After shutting the car off and letting it sit for an hour or so, I came out to my garage and a heard a weird whirring noise. I couldn't place it at first, but I eventually realized it was coming from the Sedona. The best I am able to locate it is under the rear, near the back axle. It doesn't sound louder on either side of the vehicle.
The noise itself sounds like a small electric motor moving. Almost like in those old movies when a robot would move his arm. It happens anywhere between every 30 - 60 seconds, but not at regular intervals. Right before the noise happens there is a light click, which I'm assuming is a switch that's powering the thing opening.
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I have this weird electric motor noise that comes from the rear a few seconds after I shut my car off (I don't have the leveling air suspension). I also hear it in the engine compartment on occasion when the engine is shut off (I've heard it hours after the car is off). It lasts for a couple of seconds and it's gone. I do have the car set on auto ebrake. That's the only thing I can think of causing the noise...like the cable loses tension and the motor tightens it, but I don't really know.
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So recently I was driving through highway 17 with 4 people and we'll my 07 Prius was slowing down like never I eventually smelled a little burn but I ignored it I just though the engine was working a bit to hard. Recently I noticed that on the energy screen it only shows that the battery is getting charged it sometimes used the battery to the motor but not often. I did notice though that I run with electricity more when I'm in the city. It's quite weird it's like the electric motor doesn't work on the freeway.
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06' prius that I believe to be abnormal behavior. Just took the car on a 360 mile round trip. After about an hour of driving (Interstate 78mph) I happened to notice on the Energy screen that the car started to use the electric motor steadily for about 5 minutes of driving on flat terrain (Kansas). I watched as the SOC went from 5-6 bars down to 1-2 (purple). At which time the car started experiencing bouts of high rpm on level terrain/small hills. It stayed in this state for over 20 minutes or so of driving. It acted like it knew it needed to charge the hybrid battery, however the level never increased until such time as I exited the interstate and started braking. I am assuming that the HV battery should rarely discharge that much traveling at highway speeds on flat terrain.
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When sitting at redlight, engine off, vibration seen and felt when electric motor is active.
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Yesterday, at 8000 ft in the Arizona mtns, my 2010 Prius exhibited some strange behaviors. For several minutes the gas pedal was non responsive in the first half of it's travel, then it would lurch ahead in a jerky manner unlike it's normal behavior.
It seemed like the electric motor was not being engaged. It also seemed stuck in ECO mode. Pushing the economy mode button would not disengage economy mode. If I stepped hard on the pedal it would go, but not very well. After heading down the mountain to a lower elevation seemed to work.
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Last night when I went out into the garage, I heard the sound of a small, lower RPM electric motor. After walking around a bit, I found it coming from the underside of the back of the Camry. I got in and turned the key to the "on" position and it went away. The car had been parked for about 5-6 hours. I've never heard this noise before.
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Started getting a noise a few minutes after startup. I can hear it click on and then it sounds like a loud electric motor/pump/fan type noise. Starts pretty loud, then gets quieter (but not gone) after 30 secs. If I turn off the engine, it stops and if I immediately restart, it's gone for a couple minutes.
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My 2013 Prius v V with 60,000 miles just intermittently started to show 3-4 dash lights when driving: Slip, Brake, and ABS. Whenever this happens, I noticed the regenerative braking doesn't work and the traction motor refuses to turn off at a stop (like at a red light). The traction motor will turn off if I put the car in neutral. At first it happened with just those three lights, but now a fourth comes on...the LED lights indicator.
So what gives? Sometimes these symptoms last for days, and then they stop. Sometimes they stop for days, and then return. Once in a while they disappear (sometimes after a rest of a few hours) and then come back on after a short drive. Once, they persisted for days, then disappeared. A few hours later, however, I had the car parked with the power on for about an hour while talking to someone via Bluetooth (traction battery at 3/4). All of a sudden all the power to the vehicle cut off. When I turned the car back on a half hour later the symptoms came back and persisted for days.
This on again off again dance has been going on in a temperate Southern California Coastal climate (Orange County CA) and also in a hot desert climate (Coachella). It seems like a short...or maybe a problem with a brake actuator or sensor (same thing? dunno). I've researched this on the web, and couldn't find anything that matches exactly my symptoms. It seems to be related solely to the braking system, but why the LED light now? The LED doesn't come and go on it's own, it comes on in tandem with the other wheel-related lights. Very strange.
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Have just purchased a 02 prius with a transmission that slips. Would this be a electric motor problem or actual tranny problem?
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