Prius (Gen 3) :: Passenger Side Engine Compartment Buzz At Mid To High RPM


Feb 20, 2011

When the RPM get to about 1/2 way on the engine side of the display to nearing the power indicator area there is a buzz emanating from the passenger side of the engine compartment. It sounds like a heat shield on the exhaust (that's a total guess, it sounds like flimsy metal).

It is not the hood prop. It only happens in that specific RPM range and it is when the engine is cold or hot. I will be able to replicate it for the tech at Toyota because it is constant. It has been constant for quite a while but since it only buzzes in that range I don't drive with a constant buzz just accelerate or decelerate through it.

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Camry 2012+ :: Buzz In Engine Compartment That Lasts Only For 1 Second

I've noticed on my 2013 LE that after backing out of my driveway, I put it in D and after about 4 seconds, I get a deep "buzz" from the engine compartment that lasts only 1 second. Is this normal? Is it part of the torque converter or transmission?

I don't notice anything unusual on the shifting action and this happens both in winter and summer. There are no issues with the transmission that I can tell.

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Passat (B6) :: Sound From Passenger Side Engine Compartment

I have a 2006 2.0t 6mt w/ 60k miles which I bought new. Ever since I can remember when I am stopped at stop lights or driving slowly (less than 10mph), i sometimes hear a knock knock knock coming from under the hood. It normally happens 8 times in a row, perfectly spaced (probably 1 thunk every second). It almost sounds like an electric valve or pump cycling/priming/purging. I would say that this 8 knock cycle happens just a few times a week. I have tried to capture the sound with my blackberry, but it is pretty quiet.

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Passat (B6) :: Smoke From Passenger Side Of Engine Compartment

Yesterday right after driving over a speed bump my car started smoking and the engine light flashed. it seemed of burning plastic. The part smoking is under the engine cover of the passenger side . it is a metal box with a plastic plug and looked to have "fins" the car also threw codes P301 and P2300. The car is a 2006 is this a coil.

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Touareg :: Strange Noise From Passenger Side Engine Compartment

I have this strange noise coming from the engine compartment on the passenger side of my vehicle. Here are the characteristics of the sound:

1) Sounds a bit like a skipping tranny. Fast paced creaking type sound.
2) Only happens when coasting and the car is up to temperature. Meaning when I'm accelerating or braking the sound is not present.

BTW, the vehicle has 28k-29k miles and is 18 months old.

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Toyota - RAV4 :: Medium Pitched Whirring Noise From Passenger Side Of Engine Compartment

So my girlfriends Toyota RAV4 (2005) is making a medium pitched whirring noise from the passenger side of the engine compartment. (Same area where the serpentine belt and the alternator and all those goods are located.) The battery warning light is on, solid. I have not had a chance to take my DMM and check voltage but I suspect this is going to be a bad alternator since it is a noise consistent with the RPM of the vehicle and visual inspection of the belt is that it is still in one piece, not frayed, flexible, etc. I didn't rev the engine because I didn't want to freak her (the gf) out. My plan is to test voltage before she does anything rash like take it to the dealership which she is already planning on doing but the noise concerns me since noises tend to come from things that move which is probably an indication of some sort of mechanical failure and that tends to cost money. Luckily it's her car.

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Golf IV / Jetta IV :: 2003 - Coolant Leak Quickly From Passenger Side Of Engine Compartment

My 2003 GTI 24V VR6 is leaking coolant pretty quickly from the passenger side of the engine compartment. I have a new water pump in hand. If I'm replacing the water pump, would it be smart to go ahead and order a thermostat and metal crack-pipe to replace at the same time that I'm having the water pump installed? I'd hate to get the water pump installed, and find out that the leak is at the crack pipe.

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Ford Super Duty (1999-2016) :: Little Thump Or Thud From Passenger Side In Engine Compartment?

I have a 2008 f-350 diesel, with 33k miles, I am getting a light thump or thud from the passenger side in the engine compartment, It does it when the truck is NOT moving as well as when it is moving. It use to do it only periodically but now it is doing it about every 1-2 minutes and it happened 3 times while we were sitting at a stop light.

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Passat (B5) :: Repetitive Buzz From Inside Dashboard On Passenger Side

This is an issue which I noticed last summer/Fall. It seemed to subside over the winter. The noise comes from inside the dash on the passenger side. The best description is one of a failing hard drive or dvd player skipping during a chapter. Kind of a repetitive buzz. The noise is more pronounced in the footwell than up top.

It is a b5 Variant 4motion V6 ... 110,000 miles ...

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Prius (2004-09) :: 2006 - Passenger Side High Beam And Driver Side Regular Headlight Went Out

My 2006 Prius (Model NHW20) has a strange headlight problem. On the passenger side, the high beam light is out but the regular headlight works.

On the driver side, the high beam is working but the regular headlight is out.

I don't think it's the fuses but I'm not sure. No amount of interchanging the following fuses changes anything about the issue:

1. 10A H-LP HI RH
2. 10A H-LP HI LH
3. 15A H-LP LO RH
4. 15A H-LP LO LH

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Santa FE SM (2001-06) :: 2004 - Passenger Side Low Buzz / Whine - Loud When AC Or Heat Defroster On

I have the 3.5 LX AWD 2004 Santa Fe 102,000 miles purchased new. My power steering fluid reservoir was leaking from the top a lot. I read here that the screen in it could be clogged. I went to the garage the manager never heard of such a thing he said, and never heard of a PS reservoir having a screen (I gave him the TS. He said if I got the part and wanted it changed they would change it. I did that. It was done 2 weeks ago and now it all dry under there. But, now.. there is a low whine on the passenger side under the hood toward the back, but when I put the A/C on or the heater on defrost (Not when heater is on, only in defrost) there is a loud rumble/hum from the same area. Shut A/C or defroster it goes back to a low buzz/hum again.

I had the power steering pump replaced at the dealer about 2 years ago, its not old. The noise is NOT any louder when I crank the steering wheel all the way to either side. The fluid since replacing the Power steering fluid reservoir is staying at the same level, full, no leaking. When I put everything on, lights heat only (No defroster), radio, lights the noise doesn't get any louder either, I tested that. The other night after driving about a half hour to and from a place I went to u-turn in a parking lot and that whine was louder for a minute and while driving forward slowly out of the parking lot getting up to speed.

When I asked about the PS fluid reservoir, I had also, asked the repair shop manager his opinion, of that loud hum/rumble when I put the A/C on (At the time I thought it only happened with the A/C when the compress popped on). He listened said "That's the A/C compressor it's going and its going and cost more to replace it then its worth on your 2004." So, that's the background.

Questions: 1. Just wondering if you think it is the A/C compressor that is the loud noise when on, would the A/C compressor even go on when the defroster is on, the A/C is off, and the heat on and there for still make that loud rumble??? Or does that defroster fact kind of mean its not the A/C compressor??

2. What is your opinion of the low buzz/whine noise now (When heat/AC off)? I can't pin point it totally in park when listening, its very low (Except that one point where it was loud for a few minutes driving out of the parking lot.) (The motor sounds a bit louder in it in front too just side observation)

I almost worried if the low buzz was the Transmission as its fluid hasn't been changed in a few years (Because the mechanic said sometimes changing the fluid when its been a lot of miles between can actually cause problems to the transmission) It was done at the dealer around 45,000 miles and now my Santa Fe has 102,000 miles.

Could the power steering pump be going bad in only 2 years from what I've described? Or could the PS fluid reservoir having been spitting PS fluid from the top for a couple of weeks have caused damage to the PS pump now?

The fluid never got lower then full when it was coming out of the top and only when driving, I kept checking it. The mechanic who put the PS fluid reservoir in said he had no idea if it leaked from the top due to the screen as he felt the screen had only minor debris that was not blocking a lot of the screen since its a big screen (He didn't look too hard though), and it was possible even a small crack in the reservoir could cause that same fluid coming out at the top. He said it could be either he didn't notice a crack either.

Or are these two noises possibly not related even though possibly from the same area on the passenger side under hood.

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Prius (Gen 2) :: High Pitched Squealing From Passenger Side

I was driving home from work tonight. It was a rather windy and rainy drive home. Anyways, I started to notice a high pitched squealing from the passenger side. I couldn't tell if this was from the window or coming from a vent.

I tried to slightly crack the passenger side window. The sound wasn't too loud, but just wanted to make sure it wasn't something major.

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Lexus LS 2007+ :: Glove Compartment Door Lose On Passenger Side?

How to re-tighten the door. Mine is loose and when closed there's some gap.

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Ford F-150 (2004-2008) :: High Pitched Squeal Coming From Engine Compartment

I just bought a 2006 F150 SuperCrew with a 5.4L engine and since the weather has turned cold, I've noticed an intermittent high pitched squeal coming from the engine compartment. I've replaced the serpentine belt and the idler pulley plus another belt pulley but none of the above worked.


I've also had two separate mechanics look at the problem and both are at a loss as to what could be causing the noise. The guess is maybe its an air leak coming from either the intake or vacuum lines. But nobody is really sure.

The noise seems to really become noticeable when the temperature gets below 20 degrees and around 2000 rpms, but sometimes it happens at other times. Where this extremely annoying sound might be coming from?

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Ford F-150 - 1997-2003 :: High Pitched Backfire In Engine Compartment And Trans Not Shifting

1991, F-250, automatic, 150,000 miles, two tanks. Used mostly for towing an RV plus some pleasure. Not in daily use. A month ago I parked it and a few days later cranked it up and found it wouldn't run over thirty MPH. There was some high pitched backfire in the engine compartment and the trans. wouldn't shift. I parked it and the next day it wouldn't start. When I turned the key on the fuel pumps (either tank) ran continuously. Towed to a garage (I am not a Mechanic). They have replaced the fuel pressure control, checked all pressures and it still won't run right. The problem is intermittent. My tranny man said the trans was good. My mechanics don't know what to do. I bought it in 1998.

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Accord :: Throttle Body Vibration - High Frequency Rattle Noise Inside Engine Compartment

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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Subaru - Outback :: High-pitched Squealing Noise Coming From Engine Compartment In Cold Weather

Need to determine the cause of a strange high-pitched squealing noise coming from the engine compartment of my 2008 Subaru Outback 2.5l automatic. The squeal happens only when the temperature is cold (below 32 degrees) AND I hit a bump. It happens more often the colder it is outside. The noise is definitely coming from the front of the car and seems like the passenger side but I can't be sure. It happens with the blower fan/AC both on and off so I don't think it is caused by that. It happens when the car is cold or driven for a while and warmed up.

It occurs at both high & low speeds. I checked all my fluids under the hood and everything is filled as it should be. There are no lights (check engine or ABS) on. Recommend any troubleshooting that I can try? I have not taken it to a mechanic yet as they might have a hard time reproducing the noise since it has to be below freezing and hit a decent bump. I attach a video that I took while driving last week on a 16 degree day and heard the squeal when I hit a bump. I had been driving for about 30 min when it occurred. I have more videos of the noise if needed.

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Prius (2004-09) :: High Engine Coolant Temp / No Heat In Passenger Cabin

First background: G2 car has 215,000 mi and recently got P1121 scan code, so I replaced the coolant control valve. that's when high coolant temp and no cabin heat started.

on CCV top nipple connected to hose that had a dot on it and hose goes under inverter cover on right, next nipple down went to hose slightly to left of first hose, bottom hose goes to thermus can. initially ran car in diag mode with high heat, no heat in cabin.

so I got a Autel 519 scan code reader and I see now that the only code is a P0505 (idle air control malfunction)

taking car down my road for short test run, I turn off cabin heat completely and watched the ECT. after a while it climbs to around 220, then while engine is running quickly goes to 245F then 260F. At that point in time (around 245F) the high temp indicator lights up, temp stayed at 260ish so I return home. With car in park, cabin heat off - the temp returns back down to 220F. if I rev the engine temp again climbs.

I have gone through all suggestions, open radiator bleed valve, manually 'pumped' coolant hoses, turned on/off high heat in cabin and finally with car off removed and jumped the CHS multiple times for about 20secs.

Have purged the coolant system over period of days and coolant appears to be full as level is near top of radiator cap, no bubbling, no gurgling.

However 2 mentioned problems continue... I am starting to suspect coolant thermostat but it would seem strange that it would go at precisely the same time as coolant control valve.

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Sonata NF (2006-10) :: Cause Of Squeak In Driver Side Engine Compartment?

I have an 08 Sonata Limited. About a 3 months ago, a noise began appearing on the driver side, sounding like it was coming from the engine compartment, and it has become steadily worse.

Today, I am learned how to replicate the sound, but I cannot locate where it is coming from. Here is the scenario:

The sound is a squeaking, like 2 pieces of styrofoam being rubbed together. The sound comes and goes. The engine must be in Drive or Reverse, and under load, meaning the driver side tire must be on the ground. If I jack the car up so that the drivers side wheel is off the ground, and put it in D and let the tire turn freely the noise does not occur. The car does not need to be moving for the sound to occur; in fact, it sounds worse when the car is at rest.

Today, I jacked the car up and took off the drivers side front tire to see if I could identify the source of the noise. Later, I put the tire back on the hub, and without lowering the car, started to tighten the lug nuts. When, I tightened the nuts with a wrench, I began to slightly turn the axle and shift the location of the engine and lift it, and I heard the squeak! Obviously, the car was turned off, so I was able to repeatedly shake the wrench and slightly turn the wheel, which shook the engine, and repeat the squeak each time. I lowered the car and jacked up the passenger front side of the car and did the same thing; I was unable to get the sound to occur.

I could now identify the direction of the sound, and it was coming from under the air filter chamber. I tried removing the air filter box, but it is held in place by a rubber plug and the air intake tube. Unable to remove the box, I could not see exactly where the noise was coming from.

Is there a motor mount under the air intake box, or is there another part that may shift over time and begin to make this noise? My best guess is that when the car is in Drive and under load, the engine vibrations are causing something to make a squeaking sound.

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Sonata NF (2006-10) :: 2007 - Whining Noise On The Right Side Of Engine Compartment

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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Ford 7.3L Power Stroke (1999-2003) :: Oil Leak On Driver Side And Whole Engine Compartment Is Wet

I'm having a problem trying to locate what I assume is an oil leak. It is on the driver side and the whole engine compartment is wet on the side up on firewall beneath the master cylinder. And the whole underneath is wet also axles and leaf spring and can't find where it's coming from. I have sprayed it down with degreaser to try to pin point the leak still no luck. Truck has 236k on it also new hpop and turbo pedestal and checked the valley and its dry. Right now I'm at a loss. I'm leaning towards oil cooler but would a leaking oil cooler cause whole side of engine compartment to be covered?

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