Prius (Gen 2) :: 2007 Whirling / Vibration Noise Coming From Engine Compartment (with Audio)
Jun 27, 2014
I would describe the noise as a whirling/vibration sound that can be heard as soon as the gas engine portion of the car kicks in (even in park) but gets louder and more noticeable as the car is in motion, especially at highway speeds (55 - 65mph). Opening the hood and listening to the engine block, the noise is definitely coming from around the area of the silver-covered portion by the driver's-side, which I believe is the hybrid synergy engine. The noise has gotten to the point where I really get bothered by it driving anywhere, and I have to turn up the radio to try to drown out the noise.
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03 camry 205,000 miles. After first start when backing up, there is a thrumming vibration noise coming from the engine compartment. The noise is less when moving off in drive.
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So, I have 100K miles on a 2007 4Runner (V6) and after having my radiator flushed at the Toyota dealership service dept, I get my car back and now hear a low rumbling noise coming from the engine compartment. I hear this noise every time I turn on the air conditioner, and sometimes even when it's off.
I took my car to Toyota today and after getting the service advisor to acknowledge the noise, I get a call 2 hours later saying, a) that no noise was identified by the technician; b) nothing wrong with my car; and c) I can come pick it up.
It ain't my imagination. Clearly, something is wrong. What it is? Should I take it to another service department? This kind of thing makes me crazy!
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I have a 2007 Azera with a 3.8 engine. It has 16000 miles without any problems. There is a clicking noise coming from the engine compartment when accelerating. The noise only occurs when the engine is cold and seems to be more pronounced when accelerating quickly. I do not hear it when the car is idling.
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I started noticing some strange sounds coming from the engine compartment after shutting off the car ( a 2007 with 90K miles). It's different from the hum for several seconds that I often hear after switching off the car. This one is a squeaky rough sound like a small motor wearing out. I think it's from the driver side of the engine compartment. Is that where the inverter pump is? This car didn't have any record of needing the inverter pump changed for the recall as far as I could tell.
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I have a 2004 Prius that has a ticking noise coming from the engine compartment It speeds up and slows down with the idle of the engine or the pressing of the accelerator. Appears to be coming from the passenger side (US). No diagnostic codes have come up.
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I first noticed a strange noise coming from the engine compartment a day ago. I had left the car to sit in the sun for a few hours. When I got in the A/C was set to on and the system was on auto. I tested to see if the noise went away when I turned off the A/C and it did. I turned it back on and it returned. I know the A/C operates at different speeds based upon cooling needs and that it can get sort of noisy but I didn't think that it could/should get this loud. The system seems to begin working quickly and it does seem to put out cold air. If the noise is unusual do you think that it indicates another underlying problem in the A/C system?
Just to clarify, the ICE is not running in the video. The cabin fan is set to low and the temperature is set to low. The person in the car presses the A/C button and the cooling fans in the engine compartment come on as well as the A/C unit. The sound gets louder a few seconds in. Here is the link to the recording I made of the sound.
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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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In 2010 i purchased a 2005 Lexus GX470 w/ 52k miles. It had 2 previous owners and you could tell it had been garage keep and most likely not their weekday car because low miles and 3rd row was in mint condition. Up until late last year the car has been great. I use it to tow my boat and the only thing besides regular oil/filters and its 60k checkup was to replace the drive shaft for the TSB/clunk noise on stopping.
I am currently having two issues that have been becoming worse.
1st is the knocking or tapping noise in the engine compartment. Below is a link to the video. This was after driving for approx 15 minutes. It doesn't do it 10/10 times, but is probably happening 1/2 the time now when i drive it. Oil is 10W30 Full Synthetic by MobileOne and just replaced today to see if that changed anything. I purchased 2 replacement knock sensors a few weeks back but haven't had the time to break it down to swap them out. Figured since the belt needs to be done at 90k and my car is 10yrs old I might as well replace the timing belts at the same time. When the AC is on or car is in drive it doesn't knock strangely enough. In the video you can hear the AC click on/off and knock when its off. I'm hoping this isn't a bad engine or rod or something... Thoughts?
2nd is the steering vibration. I noticed there is a TSB on that for replacing the steering column and other parts and assume I should do thing soon as well. Depending on the payment or temperature it will do this at times around 60ish MPH. Again, its not consistent, but is very noticeably while driving when it is. Tires have approx 40% tread remaining and only the driver side tire seems slightly more worn on the inside than the outside.
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So I'm at my wits end trying to locate (and fix) a loud, high frequency rattle noise inside the engine compartment.
It can be heard when applying the gas pedal a certain amount. In other words, I can "find" the noise and maintain it at a certain rpm.
The noise is coming from the back of the engine near the firewall. It feels and sounds like it's coming from the throttle body plate and vibrating the gas pedal. I cleaned the plate and it isn't loose.
The issue doesn't seem to be affecting engine performance.
The sound is noticeable while driving (under load). When in park, I can find an rpm where the throttle body seems to take a heavy wave of vibration from the engine and hum (but not nearly as loud as while driving). Issue existed before I put on new motor mounts, and still persists after replacing all 4 (although the vibration and noise are reduced).
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First off it's a 2008 Prius with 80K on it.
There is a new sound that has started coming from the front of the car in the engine compartment or even lower. It is a turning turbine like sound that is mostly obvious when driving at 60 mph, but my guess is that it is always there, but not as audible at lower speeds. The air and heater are both off and have no effect on this sound. The only thing that could have had anything to do with it is that a day or two before, the tires were low so I filled them to 40 psi. The other thing is that it clicked over to 80K the last week and the friendly red maintenance required light came on.
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I have a 2011 RAV4 with 122,000 miles. For the last few months I have heard a fluttering noise coming from the engine compartment, usually at in-town speeds when I step on the accelerator gently, for example to maintain speed on an incline.What could this be?
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I have a 2001 Pontiac Grand Am with about 160K miles on it. Over the last month or two I have noticed a persistent ticking noise coming from inside the engine compartment. It sounds like it might increase in frequency along with the engine speed. It is loudest when I pull up in a drive-thru or next to another car and roll down my window. It is audible when sitting or while moving. Doesn't seem to make a difference if the car is hot or cold. I checked the oil and it appears to be full. It sounds like it's coming directly out of the engine block itself. I get the oil changed every 3,000 miles like clockwork.
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I have been trying to chase down a whirling noise that follows vehicle speed since I bought the truck in my sig in Oct. The noise happens whether or not the hubs are free or locked so I don't think it is the front needle bearings. I just changed the transfer case fluid over to Mobile 1 Syn. and there was no change in the noise. I also changed the front pads, rotors, slide pins and calipers a few weeks ago and that didn't have an effect on the noise either. Today I took the truck for a ride and I'm not sure but it seems almost like the noise is a bit louder! And I noticed that if I hit the brakes firmly, harder than a normal stop the noise gets significantly quieter and if I release them again the noise goes right back to normal. This has got me stumped...
Along with this noise, I have a vibration on the freeway that gets worse around 55 and lets off around 61. Its worse at some speeds and better at others. Thinking the two were related I pulled the rear drive shaft and checked the u-joints and the carrier bearing for play. The carrier bearing doesn't have any real play but there is quite a bit of slop, ability to turn back and forth, where the driveshaft comes out of the transfer case. All but one of the u-joint cups were fine. The bad one isn't even too bad just the rubber seal around it is a little off, there is still grease in it and the needle bearings seem fine.
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I have a 2009 Toyota Matrix S. There is a rattling noise coming from my engine compartment whenever i drive 60+ mph. It sounds like it's metal on metal. Nothing is loose inside. I took it to the dealer and they told me the water pump bearings were bad and replaced my whole water pump. That didn't resolve my problem. The rattling is still there.
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Rumble whoosh noise (her description,,, I am currently in another State) coming from my wife's vehicle in the front of the engine compartment. Closer to the passenger side near the water pump. Noise has been present for the last six months, but would always go away after it was warmed up. During winter (In Tucson AZ so never gets too cold), it is worse due to the cold weather. Previously only happened at low RPMs and ended to be worse when turning a corner.Today it occurred also after operation for a quite beyond starting of the vehicle, and is starting to sound like the failure of bearings. Also a burning smell was occurring.Just replaced both the water pump and the alternator, and the front struts. The water pump is not leaking but the old pumps leaks are still evident. The current mechanic trying to troubleshoot is stumped. Motor mounts are getting close to failure, but still appear to not be a problem. CV joints are fine. What to look at?
2006 Toyota Rav4 4X4 4 Cylinder....
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I own a 1999 Toyota sienna that has 112,000 miles. For the past few months there has been a whirring noise that seems to be coming from the center engine compartment. It started quietly and now has increased in volume. It reminds me of a speedometer cable that is beginning to fail. I have taken it to my trusted mechanic for a diagnosis and he thought it was metal on metal noise from the transmission. I have owned cars for 40 plus years and have'nt heard of this type of tranny noise. What could be causing this? It makes this noise under power and when I release the accelerator the noise almost disappears. Also there is a clunking noise coming from the passenger front wheel after releasing the brake pedal when I come to a stop. I have replaced the strut,ball joint,and lower control arm bushing trying to remedy this. I cannot find anything else that is loose.
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I have an 04 mountaineer and when i shut it of i get a loud banging noise from it. Its sounds like its coming from the engine compartment. The truck itself runs great and I didn't see any exhaust leaks. It has 70,000 on it.
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Any way, my 2007 Sonata with 57,000 miles just developed a whining noise on the right side of the engine compartment. It sounds like it is concurrent with RPM and I thought it might be the alternator, the drive belt or some pulley. I have even seen on the general internet that some others had a bad oil filter. To me, the noise seems to be coming from the alternator area. It is a relatively high pitched noise that almost sounds like an electric motor. Would love to get it fixed. I am nearing the 60,000 max on replacement from certain items and do not know if the alternator is covered.
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My 04 hyundai accent about 2-3 months ago acquired a hissing noise which seems to be coming from the middle of the engine compartment. The car only has 100,000 miles on it.
It is a constant hiss that only stops when the gas pedal is pushed initially. I have looked all over the car and can not see any fluids leaking at all. It is pretty loud and can be heard easily outside the car when the car is on.
I hooked up my obd2 reader and found these codes:
P0304-Cylinder 4 misfire (I notice it when the car sits at idle for about a minute)
2x P0121- Throttle Position circuit range/performance problem
2x- Evaporative emission incorrect purge flow.
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It's a lite creaking clunk/shifting sound and only occurs in forward and when braking to a stop.It only makes the noise... when the brakes are initially applied.If the brakes maintain their engagement the noise no longer occurs.So... if the peddle is intermittently pressed when braking to a slow stop the slight shift/clunk noise will occur on each depression of the pedal.
The sound is located inside the engine compartment..guessing related to the brakes /or suspension components.If I were to take a stab at it's location in the bay.I would think it's loudest nearer the driver's side.I don't really hear it when I brake hard/stop abruptly.It's fairly audible within the cabin.I can't say it's a clunk... at least not fully yet but something has to be shifting slightly !? well maybe the front brake calipers/bolts are loose and the caliper is moving slightly... ? Or maybe a loose bolt on the suspension might be culprit.Could even be described similarly that of a dry coil-over seal compressing.but surely these struts/shocks can't have failed at only 30k ?I haven't pulled the front wheels off, yet, to inspect.
Very difficult for me to ascertain what might be moving/shifting while I'm operating the vehicle to make it occur.But I have to believe that fault lay with either the brakes or suspension.I'd also like to avoid the cost of a dealership diagnosis
some facts:
2010 LX
30K (well maintained/2nd Owner)
factory/everything original
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