I'm still getting used to my prius and hybrids in general so there are a few things that I still don't know about them. But what what makes that cool whirring sound you hear when accelerate from a stop or coast? It's got a cool scientific buzz.
View 6 RepliesTowing with my 07 F150. I now have a noise all of a sudden. I worry that is the rear end going out. As I accelerate normal from a stop, I , for one feel bump-clunk sensation, as if I have a bad u joint. 2nd I now have a "whip whip whip" whirring sound, sound character speeds up as I speed up.
I hope the sound is the brakes, because I know they are getting down to the end of their life.
I've been having a wierd whirring sound when I accelerate for the last 1000 miles or so. I have about 19k miles on my 20007 Azera Limited. As a driver, I do have a somewhat heavy foot so I worry that I tax the engine/transmission too much. What it could be?
View 16 RepliesI have just bought a 2000 Passat 30valve V6, from a dead stop when I accelerate it makes a weird "thud" sound and feeling under my feet, almost like when you have a broken tranny mount on a chevy. I have been told that it is the "TPS" or throttle body?? It does not do this shifting into any other gear.
View 2 RepliesI recently just purchased a 2011 Lexus RX350 AWD... I would like to ask on the downshift while slowdown the car.... Every once in a while I feel the tranny down shift while slowing down... It's not harsh or anything, but just enough to have a slight feel. Like a backlash? Is this normal? I also have 09 GS350 AWD.. It's so smooth that I can't feel the downshift at all...
View 11 RepliesI recently acquired a 2003 Camry with 150,000mi. its has a rough take off from stop and when I accelerate it make a rattling/grinding sound. the sound disapates after around 30mph. Ive changed trannyfluid, oil change next is plugs and all that good stuff since I do not know when it was done last.
View 4 RepliesI parked the little dear in the garage about 9:30 last night. I went into the garage this morning around 6:30 and I noticed how still and quiet it seemed. I then opened the garage door and went outside for a few minutes. When I came back in, I hear a low whirring sound. I went back outside to listen, but it was definitely coming from the Prius, perhaps near the back, underneath.
The hatch was open; I closed it, but the sound didn't change. The fob was in the house, and I didn't open the driver door, so it wasn't the brake pump. It lasted at least 2-3 minutes, at which time I was too bored to continue listening, and I went back to weeding and watering.
I have a concern about not hearing the whirring sound after shutdown anymore. I know that the sound comes from a small electric-pump that pumps 3 liters of coolant into a thermal container (to keep it hot) everytime I turn the hybrid system power OFF. When the power is turned back ON, the coolant is pumped back into the engine.
I've noticed that after I got an oil change and tire rotation at Pep Boys the sound is no longer there after shutdown or power up. Then after a couple of days I took the car to the dealer to fix the tire rotation (because Pep Boys didn't do a good job at rotating the tires, there was a woo woo woo sound while driving) and the dealer also did a multi-point check, but they didn't say anything was wrong with the car.
On my 2010 Prius (~75,000 miles): The whirring electric motor sound that one hears when just entering the vehicle (even before starting the vehicle) seems to be getting more frequent (and maybe louder).
I used to notice it only when getting in the car and before or just after pushing in the start button. But now I notice it driving around the neighborhood, even at moderate speeds. Is this a sign of some impending failure?
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 RepliesWe are only one week in to owning our 2006 Prius! Question is why does it sound like a motor whirring sound after turning it off? It only lasts 20 to 30 seconds, just wondering if this is a normal sound?
View 4 RepliesI have a "05" Prius problem that I'm stumped on. I have 165k miles. I am the original owner and have maintained this car really well and it really runs incredible. I just started to hear a strange new whirring/winding sound coming from the front when driving. When accelerating it goes quiet. When I let off on the gas it starts whirring. Between 40-45 MPH if I let off on the gas it will whir but then when I drop below 40MPH it does it intermittently. It almost sounds like it is attempting to slow the car down . I've looked over the forum and other sites and hear about other sounds like this (ex: A/C motor), but nothing that matches my symptoms. I can say this, it in no way affects the performance of the car, just very annoying. If it is serious I would like to jump on it right away and try for 200K .
View 3 RepliesMy "05" Prius has 164K, I'm the original owner and I have had great success with this car. I know some owners talk about the loud whining humming sound from the A/C unit which I am aware of but this newest sound is different and after 4 hours with a Toyota tech all they can come up with is an A/C compressor going bad. I only hear this sound after I reach 40MPH+ and then decelerate. It then winds down with the speed of the car sometime intermittently. If I accelerate it goes quiet.
I've also tried speeding up to 40MPH and then move into neutral. It will stop the noise. I'm adding a video and I realize there is standard road noise but if you watch my energy monitor you will hear the noise whirring winding when the green arrows point back to the electric motor. Pay close attention to the viseo frames at 13 seconds, 22 seconds and again at 29 seconds. Turn up the volume. Of course inside the cab it is much more pronounced. I'm finding it hard to believe this is an A/C compressor. Sounds more like an electric motor whining/whirring. I'm concerned about driving my car for safety reasons.
My 2008 Prius has started making a noticeable soft whirring sound whenever the engine is running. You can hear it both inside and outside of the car. The sound lasts exactly 30 seconds, then pauses for 4 seconds, than repeats . When the car is turned off, the sound can be heard for about another 10 minutes before it shuts off entirely.
View 2 RepliesI have a strange issue that just started happening. A whirring sound comes from the vent in the back seat I believe which sounds like escaping Air. Not like the last 2 years I've owned it. At the same time I noticed that the accelerator now takes a second to engage after I hit the pedal from a stop every time. Furthermore the engine seems to be over revving, as if engine braking. I've restarted the car a few times. I've checked all the fluid levels.
View 7 RepliesI have a 2009 Prius with about 56K miles on it that I absolutely love. Now I know from reading in the forums an my own experience that when the A/C compressor starts running you hear an electric whirring sound. My question is... is it a cause for concern when the sound it makes seems different -- the pitch sounds lower to me now. The A/C still works fine, but I didn't know if this changing sound means the compressor was on the way out.
View 13 RepliesPrius owner. I have 200,000 miles on the car and have done nothing except change the oil, tired and battery. No other maintenance was performed.
While driving straight the front wheel seems to vibrate some and make a whirring/roaring sounds. When turning to the left the noise is greatly reduced. When turning to the right it still exists.
Any potential causes? Possibly the struts? They as well as all the front end components are original.
I found that it is nearly impossible to accelerate from a stop in normal mode without hitting the red bar zone without getting shot.
View 19 Replies2010 Prius. There may be times when you attempt to accelerate from a stop on snow or ice where the throttle will not respond. The reason for this is that our hybrid vehicles have 100% of the electric engine's torque available at 0-1,500 RPM unlike our gas-only vehicles, where maximum torque is available around 4,000 rpm. If the Traction Control System detects wheel spin it will inhibit the throttle because if the tires were to spin and then suddenly gain traction, the torque would be so great that damage could occur to the transaxle.
View 19 RepliesMy 2004 Chrysler Sebring with 128K miles is making a loud whirring noise when I accelerate. It does not happen when I break, coast or am idle. I live in a city and potholes are a way of life. I got four new tires in November and had the alignment checked and fixed at the time. What it could be?
View 2 RepliesYesterday while i was driving home out of the blue, I was in the city making a stop and suddenly everything in my odometer start blinking including gas level (gas was halfway), also big red triangle turns on and some other lights that I couldn't see cuz the car stop accelerate so i just make to pull over and set the Parking then I turn off the car to try turn it on again and see if everything clear out but didn't turn on anymore couldn't even get it in neutral to move it...
I press START button ones and screen turns on and even able to get into info system to check that my aux12v battery was ok. BUT when press the START button twice with or without stop pedal all energy shut off, screen dies and odometer just try to blink quickly before die not even able to see if any other light turns on like the engine one or big triangle.
AND WORSE part is that i can pull anything out of my Scanner because it needs to be in 2 STARTBUTTON pressed mode in order for my scanner to connect with my Prius.