Prius (2004-09) :: 2007 - Rotational Noise On Acceleration / ICE Won't Start
Feb 10, 2016
I have a 2007 Prius that had a rotational noise on acceleration. I pinpointed the noise to the transmission area and suspected something was wrong with the electric motor. I took it to a local transmission shop and they disassembled the transmission to replace a bearing.
After repairs, they called me and informed me that the hybrid battery needed to be replaced. I've been driving the car for about a week with the noise and had no indication of a battery problem, or any other problem.
I had them tow the car back to my shop. The hybrid battery was discharged. The battery blocks were all between 10 and 12 volts. The vehicle would move slowly, but the ICE wouldn't start up to charge the battery. It had one DTC for hybrid battery malfunction.
I removed the battery from my own Prius and installed it in the car. The ICE fired up right away and shut off soon after, which would be completely normal in my car. But the engine never started again. I drove a short distance all on electric. The battery bars depleted quickly. Regen braking was not operating. There was a shudder every so often on acceleration. I'm not sure if it's in the transmission or the ICE is attempting to start? There are no DTCs so far.
The screen indicating where the power is going indicates that the engine is ON and delivering power even when it clearly is not. Not sure where to go with this one. It seems really odd that the ICE started once and won't start up. I tried disconnecting the battery and starting over, but the ICE still does not start up. I looked around the transmission for something disconnected, but found nothing.
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I have a 2006 Prius (150K miles) with a noise coming from the drivers left wheel. It is a hollow metallic squeak that only occurs while the vehicle is moving. It sounds like the wheel is making brief contact with something metallic at the same point on every rotation. The pitch of the squeak increases with the speed of wheel rotation. It does so while rolling, with breaks and without. The noise gets louder when turning right, and softer when turning left, though it begins to get louder again when the wheel is turned hard all the way left.
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I have a 2007 Prius with 136,500 miles on it. Love this car. Getting 53.3mpg currently. A while ago I started noticing a strange sound coming from the passenger side of the car where the engine is. Recently the sound has become more pronounced and it has me stumped. The noise occurs upon acceleration, but not all of the time. If the battery is at 2 purple bars and I accelerate, the noise is very noticeable. But once I get to cruise speed it goes away. Again, this is sometimes and not all the time. Hopefully it's nothing, but I figured I would post this incase something is on the verge of failing so I may catch it in time.
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I need to diagnose an issue I've had with my 2007 Prius with 79,000 miles on it. Several months ago I noticed a distinctive whining/humming noise coming somewhere from the engine compartment of the car while driving. The noise may be present at lower speeds, but the volume of the noise appears to increase proportionately with my acceleration and as such is most noticeable at highway speeds of 50 - 70 miles per hour. As I accelerate faster, the noise level seems to increase. If I take my foot off the gas and coast, decreasing speed, the whining noise gets lower in volume. I believe I first noticed this noise about 6 months ago, but wasn't more proactive about it like I normally would be because at first the noise didn't seem overly loud and my extended warranty unfortunately was up once I hit 77,000 miles. Now 6 months after I first noticed the noise, I believe it's definitely louder than it was when I first heard it, so much so that I can pick it out over the radio being on at a decent volume.
After checking some forums I thought the culprit might be a wheel bearing. I took it into a local Midas shop at they informed me that my passenger-side front wheel bearing was actually breaking apart in pieces. Obviously I had that wheel bearing replaced but I was also hoping this was the source of the whining noise. Unfortunately that wasn't the case as driving it home the noise was still present. They also said the tires were not balanced properly (from my Toyota Dealership no less when I had them install new tires) so I had the tires rebalanced as well. They did take the car for a test drive but probably stop looking for issues with the car as soon as they saw the wheel bearing in that condition. Also that shop does not specialize in Prius' or hybrids so they might not be able to notice the noise that shouldn't be there like I can.
Other than wheel bearings, where this noise could be coming from. Some posts on here possibly pointed to the ICE water pump or transaxle fluid (which as far as I know has never been replaced since I bought the car new).
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I have a 2007 Honda Pilot. 65K Miles.
Several months ago, when turning left, regardless of speed, my wife starting hearing a noise. It is not a knocking or harsh grinding noise, but a low grumble (I don't have a great word for it). It's definitely rotational, it doesn't get any louder as speed increases, but it obviously happens more often. It seems to come from the right side of the car, I originally thought it was from the wheel, but just now I had it jacked up and had a neighbor who works on cars look at it with me and now I'm not so sure.
When I described the problem to him, he first thought it was a CV joint, or possibly ball bearing. After a few minutes looking under the hood, he quickly ruled those out. Boots were in great condition, and he remarked that everything seems to be very solid around the wheel.
I thought that noise was a result of weight shift to the right side of the vehicle when making right-hand turns, but we had the car up on two jacks stands placed on the jack braces, turned the car on and gave it some gas with the wheels turned left, and you can definitely hear the noise with zero weight on the wheels or axles. When you straighten the wheel, the noise subsides.
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So i was cleaning my 2007 mazda miata and i noticed one wheel has some fairly deep scratched grooves inside of it. I inspected all the other tires and the other front tire has similar marks but they are way way more of a surface/barely there scratches. The rear wheels are not scratched. I am also hearing a rotational noise when i drive. It gets faster as I accelerate and slower when I brake. I don't know anything about cars.
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I have a 2004 Saturn Vue, V6, FWD with ~170K miles. It has a rotational noise coming from the front end that I can't find/fix. My regular mechanic has replaced both front wheel bearings, the rotors and brake pads. Tires have ~35K on them and no noticeable uneven wear. They were rotated and the noise didn't go away. Mechanic thought it might be transmission, but transmission shop disagreed, but couldn't suggest an alternative. The noise is speed dependent. Initially you had to be at highway speeds to detect it, but now you can hear it at 25 - 40 mph as well. Best description is a "whoop-whoop" sound. You cannot hear the noise if the car is parked and you rev the engine.
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Since the Prius is my wife's primary car, I can go a long time without driving. I recently have been driving it more, and it seems to me that it has the sounds of a failing wheel bearing. Between about 30-40 MPH there seems to be a distinct rotational noise that sounds to me like a loud wheel bearing from the front end. The sound seems to get quieter as I go faster, and at 60 mph + it seems normal.
My wife didn't notice any difference, but she drives the car everyday so maybe she didn't notice the gradual increase in noise. I know it's not tire related, because I just swapped tires. When I did, I didn't feel any play in the front bearings or feel any roughness when the wheels were rotated.
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I've got my "P1121" fix (replaced coolant control valve) recently and after about a week or so of driving (about 500 miles) I started to hear a gurgling sound at start up and sometimes when I turn the car off. I also noticed that pretty good amount of coolant (front side) was lost over the that same period of time (it wasn't losing coolant before for good 2k+ miles). I instantly filled the coolant and started the car. No gurgling then. But the gurgling came back after about 3 hours when I started it again. Car is not giving me any codes though.
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I have what feels like a rotational vibration (front to back) during mid to hard acceleration in 5th gear (60-65+mph) and its driving me crazy trying to figure this out. I can slightly feel it under hard acceleration in 3rd gear as well.
I have tried two different sets of wheels (both after market and stock) with no luck. I am starting to think it is in the motor and not the suspension... Or could it be the trans? What can I check/inspect to get how to tackle this?
Info on the car: 2003 Wagon 1.8T 5sp. 40k miles
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We have a 2007 Prius and have been very happy with it overall. The right rear tail light keeps burning out and we keep taking it back to the local Toyota dealer for replacement, but they have been very good about it. Though an annoyance, if that was the only problem we had I would not be here right now typing this.
Today my wife was driving and came to an intersection at a red light to make a right-hand turn. She braked coming into the turn and as she made the turn. What happened next scared her and is very concerning to us -
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2005 LEXUS RX 330 5w/30 oil. Warm weather state...
On first start up with acceleration I hear what seems to sound like a marble shaking around in my engine/transmission.. It is present when i accelerate and not when I am at a stop position.
It goes away within 2-3 minutes of driving... Timing belt and water pump has already been done. the car has almost 100k
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While driving through a tunnel today I noticed a metallic rattling noise upon acceleration. It goes away immediately when I let me foot off the gas and when I park the car and rev the engine the sound does not occur.
A few days ago, I had to rapidly accelerate and it felt as though I lost power for a split second. I am not sure if these are related, but I am hoping its not some sort of transmission issue (unless that is covered under the hybrid warranty. What was the diagnosis?
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I took my 2008, 56k in for a new battery after my car sat outside in negative degree temps for a few days. After doing that repair, the dealer recommended a new serpentine belt. Ever since that service appointment, the car is making a high-pitched "woo-wooo" noise during acceleration. It's definitely a noise I've never heard before. I took it back to the dealer two days later; he had the service guy drive it and they both claim the noise is normal and just due to the cold. Is it the belt? Is it the cold? Am I losing my mind?
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i have been hearing a rattling noise coming from the engine under acceleration only. It isn't a super consistent rattle, seems to only happen when accelerating from lower speeds. And sometimes you don't hear and other times you do. It's not a bad rattle or knock it's more of a ticking/light rattling sound that is definitely abnormal.
I know my brake accumulator is barking at me and the 3 way coolant valve is going bad as sometimes I get a constant pumping sound. I don't think these have anything to do with it but thought I'd mention it.
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2004 Prius.... About a year ago I heard a noise in the driver's side door. It sounded basically like something was scratching against the plastic, but I'd only hear the noise during acceleration/braking, for maybe a half of a second. That was for about a week, but then it went away and I didn't think about it anymore.
Then, a little while ago, I was in an accident where a pedestrian ran into the road in front of me. He hit the driver's side, and there was some damage. Bumper, hood, front light replaced. Suddenly, I'm hearing the noise again, and it's not going away.
Really, what it sounds like to me is as if some piece of something is loose inside the door and moving back and forth whenever I accelerate or break.
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My R is making a noise I don't think I've heard before.
I've been listening to my Borla exhaust to figure out if it's rubbing on the propshaft. I'm pretty sure that's been sorted, but it still 'sings' a little bit. I'm guessing it's some sort of resonance...
Anyway, while I'm listening carefully, I hear a noise that sounds like 'rotational dragging', almost like a parking brake is dragging a little bit, but no screech or anything. It's particularly bad (though still subtle) when everything is cold. It's been colder here lately, 30-40F.
At moderate speed, 30-40mph, I don't hear the noise under throttle, but when I lift throttle, I hear the dragging sound. It might be that it's always there, and just being masked by engine / exhaust noise. Or it might make more noise when I lift.
It seems to be coming from "under and back" of the driver's seat.
I am running an upgraded Haldex with the switch set full time on 'race'. I had the 40K service at 40K, and I'm now at 76K.
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25k miles, recently started getting this noise from the front end when going ~15mpg or less. Decreases and increases with wheel speed and loudest when coasting to a stop sign. Sounds like a scraping disc brake, however brake pressure doesn't affect the noise. Started happening after last service when they rotated the tires. Haven't had the chance to inspect anything yet.
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I have a 2007 prius. I parked it for 4 months and when I came back it wont start and there's a big red triangle and say 2007 prius transmission problem p lock mechanism. I have replaced the small auxiliary battery brand new but having the same problem wont start.
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Not sure if it's related to the crappy weather we've been having here in the NE, but I've got this terrible rotational scraping / grinding noise coming from the front end (sounds like the right corner). At first I thought it must be the belly pan or a fender liner came loose after driving through snow / ice but everything looks fine. Only occurs when moving, under load, it's affected by steering a bit. I'm watching two little kids I haven't been able to get the wheels off for a closer look.
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I've got about 88k miles on my 2008 Impreza 2.5i manual. The last 30k miles on it have been rather rough (~60 miles a day stop-and-go highway traffic). Somewhere around 80k I developed a leak in my clutch hydrolic line that lead to a clutch replacement around 82k miles (I had a few leaks simultaneously so diagnosis of the clutch line took longer than optimum). I also had new break pads installed around the same time, tires rebalanced, alignment, and one new ball joint on the front driver-side wheel. Anyways, after this work I had a noise develop that I've had checked out twice and has yet to be diagnosed.
I am getting a grinding noise that occurs with both front breaks but at different, specific, reproducible points in the tire/rotor/etc rotation. It also only occurs with mild break pressure (most noticeable during a gradual, easy deceleration). The frequency changes with speed, so I know it is rotation point specific. Heavy break pressure does not generate the noise. The noise is also the most noticeable after the car has been at rest for a number of hours, and lessens the longer I've been driving continuously (but never goes away completely). I have not noticed much change as a result of moisture, and I live in Colorado so our humidity is at a minimum. I've also had my rotors checked to make sure they aren't warped, and I've been assured that my break system looks good and clean.
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