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 RepliesPrius (2010-12) :: High-pitched Electrical Humming Sound From Hood In Ready Mode
My Prius IV with about 10K miles started to emit a high-pitched electrical humming sound under the hood when it was in Ready mode. It did not have this sound before. I opened the hood and found the sound was coming from somewhere around/under the engine area. I want to know if this is normal on Gen 3 Prius? I have seen post on the same noise in Gen 2 Prius but the posts (thread) stopped without a resolution.
View 19 RepliesPhaeton :: RPMs Goes To 1200 For About 30 Seconds Then Settles To 65 On Startup
On start up (Engine cold) my rpm goes to 1200 for about 30 seconds then settles to 650, is this normal ?
View 10 RepliesLexus 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
Mazda - Mazda3 :: High-pitched Gargling Sound When Accelerate And Tachometer Reads 1500 - 1900 RPMs
I'm having a problem with my 2012 Mazda3 (automatic, non-skyactive model) that others seem to be complaining about on the online forums, but there seems to be no consensus.
About 10,000 miles into owning the car, it started making a sort of high-pitched gargling sound when I accelerate and the tachometer reads 1500-1900 RPMs. At first, the sound occurred sporadically when I was accelerating under these conditions, but now, at 28,000 miles, it's happening almost every time I accelerate between 1500-1900 RPMs. Here are a few more facts:
The engine must be warm. The car must be in drive (I cannot replicate it in neutral or park)The sound occurs regardless of whether the AC is on
I took it to the dealer 3 times. The first time, they changed the belt, and that worked for about 1000 miles. The second time, they told me that the noise is normal, and I should not worry. The third time, I took it to a different dealer, and they put a "dressing" on the belt. That worked for about 600 miles. Now the sound is back again, and it's driving me nuts. It definitely doesn't sound normal. If I test drove a car at 28,000 that made this sound, I definitely wouldn't buy it.
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 Plug-in 2012-15 :: High Pitched Revving Sound
I'm rolling down the freeway in stop and go traffic, so I have been EV stacking. Clicked from EV to HV several times over the course of 5 minutes. Then, I hear this fairly high pitched revving sound - even and constant rev up, not rev/idle/rev. I thought it was the truck next to me, so I turn down the radio and away from the truck but it happened again. I would stomp on the gas for a moment, and it would subside - not completely because it would start doing it again very soon. I'm not accelerating, but it would be like throwing it into neutral and revving. When I come to a complete stop, it would not go to EV - the light isn't on like when it is warming up the ICE.
My exit was coming up soon, so I would alternate pumping the brake and gas to get it to stop. Only when I was at the light that I powered off the car to reboot. Since then, it did not recur. Strange... Perhaps related, but I doubt it - I had bumped into a vehicle around 3-4 mph the day before. I was... drowsy.
Prius (2001-03) :: ABS And Brake Light Come On With High Pitched Sound
I have a 2002 prius with 147612 miles on it and a problem with my braking system. When I turn on the car the ABS and Brake light turn on and there is a high pitch sound that beeps continuously. Sometimes after a while the warning lights and beeping stop only to return a little while later. I can drive the car when the warning lights are on but i have to press harder on the brakes than normal to get the car to stop and the braking system feels looser. However, when the warning lights turn off I can brake as i normally do and the system feels normal. This problem goes on intermittently as I'm driving.
I took the car to the dealership today and paid $143 for a diagnostics and was told that DTC C1251 was retrieved from the diagnostic computer. The technician told me that the ABS Motor is bad and because of that the car thinks I'm skidding so the ABS shuts off. He recommended that I get the ABS Motor ASSY ( Part #47071-47010) replaced.
Also, I read a post to resolve it by flushing the brake fluid. I checked the brake fluid level in the cylinder and it is at the max level and there aren't any leaks. Would that be an option?
Prius (2010-12) :: High Pitched Squeaking Noise When Starting The Car Up
About a month ago, I purchased my 2013 Prius Four. I've put on about 2,500 miles so far and recently started noticing when I start the car up, it is giving off a high pitched squeaking noise. This happens both when the car is using the electric battery and when I can feel the gas engine kick in. After about a minute or two, the noise goes away and doesn't come back.
View 5 RepliesPrius (2010-12) :: When Apply Brakes High Pitched Whirring Noise?
I have had my certified 2010 Prius II, not two because it is a 2010 and 2010 used uppercase roman numerals for model designation, with 82000 miles about 3 months and sometimes when I apply the brakes I hear a high pitched whirring noise. I think the closest thing to compare it to would be a skill saw but not that loud.
View 2 RepliesGolf/GTI VI :: 2011 - High Pitched Whine / Hum That Continues For A Few Seconds After Car Shuts Off
(2011 Golf TDI) ... When I shut off the car there is a sort of high-pitched whine/hum that continues for a few seconds after the car shuts off. Sort of sounds like it's from the front of the car somewhere. What is it?
I'm not normally concerned by the noise itself as it sounds entirely intentional like something is intended to run for a few seconds, but this morning the whine was punctuated with a few random scratchy/scraping sounds. Ruh roh?! Do I need to be worried about something about to fail?
Prius (2004-09) :: High Pitch Whirring Sound For About 10 Seconds
It's been cold, but I've been driving. When I park and power down, I'm hearing a high-pitch sound...like a fàn...it lasts about 10 seconds.
View 10 RepliesHyundai - Elantra :: Faint High Pitched Whining Noise At About 2000 RPMs
Starting about a week ago whenever my car goes above about 2 thousand rpms I start hearing a faint high pitched whining sound, increasing to a more audible level as the rpms increase.. I've ruled out breaks and tires, which weer my initial thoughts, and I think it's something with a belt or the engine now. I have manual shift 2002 Hyundai Elantra.. The car still performs fine, but I have noticed a slight decrease in acceleration speed..
View 4 RepliesPrius (2004-09) :: Weird Rattling Sound For 30 Seconds During High Load / Low Speeds?
I've noticed, maybe a handful of times in the 5k miles I've owned the car, that the engine will rattle excessively for maybe 30 seconds or so on a drive. This only happens during high load/low speeds and I think after the engine has been off for at least about 10-15 minutes. It doesn't happen on start up, only after the car is warm, but hasn't been using the engine for a bit. I'm thinking this is fuel enrichment (really rough running) because the cat has cooled.
View 6 RepliesPrius (2010-12) :: High Engine Idle Speed - 2500 RPMs
Had a first-time issue with my car today. Background, 2010 II bought in June, just short of 15K miles, never had any kind of mechanical issue.
While en route to work this morning, I was about halfway into my 15 minute drive to work, when I noticed my engine was idling very high, I would guess 2500 rpms. It started doing it while I was driving around 35 MPH, then continued doing it while I stopped at a traffic light, and continued when I continued driving to a speed around 50 MPH. The high idle while stopped was not transferred to the wheels, so it was not a safety issue as it would be in other cars.
When I got back up to 50, curious to try something, I hit the ECO mode button and the car returned to normal. I took ECO back off and the car was still fine. I had no further problems.
I would point out that this morning was about the coldest temp that the car has experienced. Outside temp ranged from 7 to 10 degrees.
Bmw - 535 :: High Pitched Whirling Sound Before Take Off?
How is the turbo in this new design cooled? Sometimes when I restart a hot engine, there is a high pitched whirling sound before I take off. Is this the turbo in action? Are there active shutters in this car? Twin Power Turbo 2011 BMW 535i....
View 6 RepliesTouareg :: High Pitched Exhaust Sound
I am a V8 owner and have about 6,000miles on the car...recently the car has been making really high pitch exhaust sounds (rasp/high pitch/weird) @ WOT...it did not do this before...
View 2 RepliesGolf/GTI VI :: 2012 - Ticking High Pitched Sound?
I just got my MKVI late January, and it currently has 3k miles on it. 2DR CSG.
Almost everyday in the mornings when I drive my car to work, there is this high pitch ticking/clacking sound coming from the passenger side vent/dash/A Pillar area.
It only happens over dumps on uneven surfaces or when I launch from a stop/red light. Keep in mind I have a manual. Its a rapid ticking/clacking sound that goes with the uneven surface or any sort of vibration on the road.
It usually goes away maybe after 20 mins of driving (I'm thinking it has to do with the temperature warming up). Or if its sunny out, it just magically goes away.
I've brought it to the dealer at least 3 times with no cure, because it takes me at least 20 minutes to get there. The tech would literally have to come to my house in the morning and listen while i start the car up and drive to "duplicate" the sound.
I originally thought it was static coming out of the right speaker due to bad wiring. Had the right speaker replaced already, sound is still there.
Camry :: RPMs Go As High As 3000 For A Couple Of Seconds And Then Drop To Normal On First Start Up
I've noticed on first start up the RPMs go as high as 3000 for a couple of seconds and then drop to normal even at 68' degrees,is that normal? because if it is what will aspect when the temperature drops to 20 or even lower.It is a 2.5 liter 4.
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