Prius (2004-09) :: At Start Up High Pitched Beep
Sep 28, 2014
I've searched for this issue and haven't found a thing.
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Sep 28, 2014
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Passat (B5) :: High-pitched Beep Went Off While Driving - Emissions Workshop Warning
On Sunday the high-pitched beep went off while driving, followed by the orange engine light to the left of the speedo needle and EMISSIONS WORKSHOP coming up on the computer.
Everything is normal. Revs are fine, temp is fine, no other lights come on. I checked the coolant and that is fine too. This happened about two months ago, but it stopped after a couple of days.
Could this be something like an O2 censor?
Touareg :: Alarm Replaced - No Longer Chirp But High Pitched Very Loud Beep
I recently had to have e my alarm replaced on the car and after i left the dealer i parked and locked the car and came to notice that the chirp is no longer a chirp but a high pitched very loud beep that lasts longer than the previous chirp. The odd thing is that when i activate the alarm it sounds exactly as it should. I contact the dealer and asked if they gave me the right alarm and assured me that it is right and properly installed. What is going on??
View 6 RepliesPrius (2004-09) :: High Pitched Whine When Accelerating
My car has 155k miles and I haven't had any previous issues with it. I noticed probably 30k miles ago the beginning of a whine sound when the car accelerates. The noise has been getting louder (it's really not that loud) but I am wondering what this could be. I want to avoid anything happening to the car and want to find out what the problem is so I can fix it.
View 6 RepliesPrius (2004-09) :: 2008 - High Pitched Woo-woo Noise During Acceleration
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?
View 3 RepliesPrius (2004-09) :: High Pitched Whining Noise After Turn Off And Restart
I know this noise is the Thermos Pump and it operates when I turn the car on and off. Question - is it failing - also a really annoying noise, but I'll put up with it as long as nothing's breaking.
View 4 RepliesPrius (2004-09) :: High Pitched Squealing Noise From Front Driver Side At Above 30 MPH In Cold Weather
When it is cold (below 30 degrees) and above about 30mph, there is a loud high pitched squeal (rather like the pitch of a squealing hearing aide)that seems to come form the front drivers side. The colder it is, the louder it is.
When I am able to take it in it is too warm to hear it. What might be causing the noise and will they be able to figure it out if it isn't making the sound?
Golf IV R32 :: High Pitched Noise On Cold Start
It's been pretty cold here and haven't started my R in 2 days at the most. I turned it over this morning and got this high pitched noise, like maybe a belt slipping or a bad bearing? The CEL flashed a few times then went away.
I couldn't stick around to check codes or inspect the bay, but what it might be?
Passat - Volkswagen :: 2001 - High Pitched Humming On Start Up
Just picked up my car from the shop last night. Had a full tune up, air filter replaced, radiator upper hose replaced (was leaking), transmission service and an oil change. When I picked up the car at night I heard that it sounded a little off when starting but I was so excited to have it back that I drove it home. Once I was on the freeway, no weird noises and it drove perfectly fine. This morning when I started it up again the sound was there again. I can only explain it as a sort of high pitched humming. I pulled away from the curb and it made more noise - I heard that sound once when I needed power steering fluid. I put the car in park and popped the hood. Power steering fluid was full. My mom suggested I restart the car so she could hear the sound. This time when I started the car it sounded fine. Typical.
I drove it to work and it drove fine and never made that noise again.
(car is a VW Passat 01')
Touareg :: 2004 - High Pitched Hum From Differential?
I have an 04' Touareg V8 that I have owned since new. It currently has 97k miles. It recently has developed a high pitched hum that seems to come on at 30mph+. The sound seems to come from the middle of the car. The car is at the dealer and I want to hear some unbiased post regarding this.
View 4 RepliesLexus LS 2007+ :: 2014 LWB - High Pitched Engine Noise On 1st Start
I purchased a 2014 LWB six weeks ago. The vehicle runs great. For the last three weeks, I hear an unusual high-pitched sound when starting the engine for the first time that day (temperature between 40-60F). See videos below. Ride height is set to normal, so I don't think it is the air compressor. You may notice that the whine goes away when the idle rpm falls from 1500 on the first start.
First start (8PM), driver window open, high-pitched motor whine [URL] .....
Second start (8:05), window open, normal engine noise [URL] .....
Third start (8:10), window closed, normal noise [URL] ....
Lexus RC F 2015+ :: High-Pitched Whine Below 1200 Rpm After Cold Start?
I posted a related video in the fuel pump thread here where the high whine noise is apparent several seconds after a cold start. Now from inside the cabin, looking at the revs, the "sewing-machine-like" whine disappears above 1200 rpm.
High-pitch noise below 1200 rpm - YouTube
Dodge - Durango :: 2005 - At Start Up Emit A High-pitched Whine?
I have a 2005 Dodge Durango, 5.2 liter hemi engine, 135,000 miles. For the last three months the car has emitted a high-pitched whine when the engine starts, while the transmission shifts through the gears, and while the car is at speed. The tone remains the same as the car runs, but it seems liked to the engine revs as the transmission shifts. A very reputable mechanic has tried to find the source without success. He's run all the diagnostics, and used a stethoscope. He checked the alternator and the power steering pump and replaced two belt pulleys, but the whine is still there. He so far has not been able to locate the source. He says he's heard the same noise on a couple of other Dodges or Jeeps with the same engine. I'd like to know what's causing this whine and how to fix it.
View 8 RepliesLexus RX 2004-09 :: RX330 - High Pitched Hum Once The Car Reaches 30 Mph
My 2005 RX330 has run fine for all 45000 miles to date. One exception is that there is a high pitched hum that becomes noticeable once the car reaches 30 mph and continues to increase pitch until about 45mph. The hum seems to disappear when going faster than 45. If you cruise on a quiet street at 30mph the hum will stay steady if you maintain speed. The hum will increase if you accelerate.
But... if you take your foot off the gas pedal the hum instantly stops. Put your foot back on the pedal and it instantly starts. You can almost "play a song" by taking your foot off and on the pedal. Lexus service clearly heard the sound during a test drive, but could not figure it out.
Ford - Escape :: 2004 - High Pitched Idle
Earlier this year, I had to have my alternator changed out in my 04 Ford Escape - the local shop installed a re-manufactured part to save me a bit of money (which was fine with me, considering the brand new alternator I had had installed needed to be replaced after a year and a half). For the most part, the car works fine, but when it is idling (especially after a cold start) there is a constant high pitched "whir" sound. I have also noticed the lights dim a bit when more systems are used, but nothing ever stops working. I have had the alternator checked 3 times now, but each time it is charging the car normally. What could be causing this?
View 12 RepliesPrius (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.
Prius (Gen 2) :: High Pitched Whining Sound After Shutdown
Yesterday after a 45 minute drive home (GA and above 90 degree heat), I noticed a moderately high pitched whining noise after shutdown. The noise continued for about 5 minutes. From my understanding, the inverter coolant pump redistributes the coolant after shutdown and I have heard a humming noise previously which I assumed to be this action.
View 10 RepliesPrius C :: High Pitched Whining Noise When Braking?
I've noticed more and more that when I am braking that I heard a high pitched whining noise. Sort of this ultrasonic type sound. It will only go away if I depress the brake pedal very firmly after being completely stopped. However every so often the firm press will not stop the noise. I hear it more in the evening on the way home than in the morning to work, though I may not be paying attention as much in the A.M. due to morning brain fog.
I don't hear it any other time. I'm worried something is wrong with my inverter.
Prius (2010-12) :: High-pitched Sound When Coasting?
Noticed the barely audible (with good ears) high-pitched sound that emanates from the car when you let off the throttle enough to prevent any charge or discharge bar from showing? It goes away if you completely release the throttle or if you press the throttle a tad bit more.
View 19 RepliesTouareg :: 2004 - High Pitched Noise From The Right Front Wheel
My '04 started making a high pitched noise from the right front wheel within the last two weeks. It's in the local dealer now and they tell me they suspect a bad right front wheel bearing. I don't see any posts about similar experiences here. I kind of worry that the fact the vehicle is two years old and only has 9200 miles on it may be part of the problem-is infrequent use enough to cause the bad bearings? I drove it infrequently (1-2x/week, sometimes no driving for a week or two) up until the last three months, and now it's being driven daily.
View 10 RepliesDodge - Dakota :: High-pitched Whining Squeal Only Occurs After Put Car In Gear And Actually Start Moving
This is an ongoing problem that has lasted for several weeks now -- I’m completely flummoxed and at a loss. It goes something like this:
My truck (2000 Dodge Dakota, 2.5L, 5-speed) has developed -- for lack of a better term -- a high-pitched whining squeal, which only occurs after I put it in gear and actually start moving (if I leave it idling in neutral, when starting it after letting it sit overnight, the sound usually does not appear at all). After about three or four minutes of driving time, the sound will show up, but there’s an odd twist: the sound is most apparent, and really loud, when the truck is at idle, such as when at a stop sign or traffic signal; when I put it in gear and take off, the noise will drop in pitch and, depending on how hard I’m pressing on the accelerator, it sometimes disappears altogether.
When I take off, every time I shift gears the sound returns -- only for as long as I step on the clutch and back off the gas, and when I step on the accelerator again the noise falls in pitch and vanishes. It does this off-and-on thing through all the gears, and after reaching the desired road speed (and I’ve reduced pressure on the gas pedal) the sound returns and is constant. Also, if I shut the truck off and wait just a few minutes, and then fire it back up, the sound will be gone, but will return after a short while, exactly as related above. It’s worth noting that, during all this irritating misadventure, the engine has run exactly as it always has -- there’s been no discernible impact on performance.
Now, some considerations. The noise is louder and more strident when the ambient temperature is lower, such as in the morning. Later in the day, when the temperature rises, the sound becomes erratic and somewhat unpredictable, and is much lower in volume, and it will even stop abruptly and then reappear later.
Many people have suggested that it could be the belt or a pulley, maybe. I replaced both tensioners and even installed a new, shorter belt to bypass the A/C compressor (to eliminate it as the possible culprit), but the noise remains. I was skeptical of all that because -- and please correct me if I’m wrong -- a shot pulley making such a horrible racket should get louder as engine speed increases, not drop in pitch and disappear. In fact, the noise seems to have no relation to engine RPM; if anything, it seems tied somehow to intake manifold pressure (the sound vanishes when the truck is accelerating, which is when intake manifold pressure goes down, or so is my understanding), or throttle position, or something else entirely. The vacuum system? The noise seems mechanical to me, not like escaping air (or, well, vacuum) . . . but what do I know?