Prius (2004-09) :: Brakes Makes Pssst Sound When Applied
Jan 14, 2014
I have a question: when physical brakes applied (at the end of the slight braking, or when speed is small, or when gasoline engine starts on parking car, or when i apply brakes on parking) i hear light "pssst" sound. It is like sound from back door stay assembly, when i open back door, or like suspension shock adsorber works. My local service bleed the brake fluid, but it doesn't work. When we bleeding rear brakes (left and right) and opens bleeding plug, that noise sounds continuously until we close bleeding plug. And there is no air in old brake fluid... Technician says, that sound is normal, but i also have Toyoyta Prius 20 and there is no noise while pressing brake pedal... I just want to ask: is that sound normal for Prius 30 or not?
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My wife told me she was hearing a squeaking sound coming from the front end of our 2006 Prius (90,000 miles) along with a noise when she applied the brakes.
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I have a 2008 Prius basic model bought second hand. There are two issues since I have bought the car; first it will roll back or forward when the brake applied, this happens on any uphill or downhill. I brought the car to Toyota service centre, they did a brake test, the test passed. but this doesn't resolve this issue. It just very weird. during driving, all brake works ok, but parking the car, if not in even service, it starts to roll.
Second, recently I hear there's a crack sound when apply the brake during low speed, especially during the stop/start traffic, and I notice mostly happens when the electrical motor in running. So when brake, the crack, like the spark comes from somewhere like battery. While brake to slow down from high speed, seems no sound. So I suspect it was from the battery or electric motor.
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So I have a 2003 Passat wagon. While driving down the road with no brake pressure applied the front right brake makes a squealing noise. As if the caliper doesn't release pressure....what should I do? Any hints?
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1950 cadillac - standard drums on all 4 corners.
I put new wheel cylinders on each drum, and replaced the drivers front hose, as it was clogged. The passenger side I left because it works and doesnt leak. I've cleaned all the brake surfaces, shoes and drums, and bled everything.
When I brake, and only when I brake, the front right makes a grinding noise and the car pulls to the right.
I tried tightening the star wheel today to bring the shoes inward in hopes that would equalize brake pressure up front, but when trying again today, I got that grinding sound still.
There is no scoring or gouges on the shoes, drum, and the inner and outer ball bearings seem fine - round chrome balls with no discoloration, no gouges on the spindles. Granted I don't drive this far at all, especially now that I have this grinding.
How can I really tell if its the ball bearings? It only makes the grind when I am on the brakes.
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Just had a couple questions, The first one is in regards to the brakes on my '09. I've read that the brakes themselves don't actually kick in until you are going 7 mph or less. Anyways, when I am coming to a stop it is not necessarily smooth. I try my best to apply even pressure to the brake, but I basically come to a jerky stop. Is this common in a Prius? I bought my car certified pre-owned last month and I know the brakes were one of the checklist items.
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I have a 2007 Toyota Camry 4 cylinder and the ABS light comes on intermittently. Not only does the light come on, but sometimes when I apply the brakes, the brake pedal makes a grinding, vibrating sound that I can hear and feel under my foot, and feels as if the brake pedal is going to go all the way to the floorboard. If I quickly pump the brake, it stops that sound and the brake works fine.
I have taken the car to O'Rileys and Firestone and they put it on the analyzer. Two codes come up which indicate that the right front ABS was bad and/or an open circuit. I replaced the ABS sensor, but the problem described above persists. I took it back to Firestone and the same codes displayed. Firestone said it was an open circuit and that I should take it to the Toyota Dealer. I called the Dealer and they want $135 to analyze the car. They won't tell me what they will do in the analysis. I also took it to Just Brakes and they kept it for 3 days and could not or did not do much other than suggest I take it to the Dealership. I have read that the Dealership will probably say the ABS computer needs to be replaced ($1,000). I have also read that the 2007 Camry Hybrid ABS brake system has been recalled, although my Camry is NOT the hybrid.
There has had two fender benders on the left front side and the right front passenger tire hit a curb which bent the tire, but the tire has been balanced (not sure if the wheels were damaged in these minor accidents or if the wheels could be causing this?) Other thing that occurred right before the ABS light started coming on, and the brake issue, is that the air conditioner went toes up, and there were small metal fragments within the air condition housing unit. I replaced the whole A/C unit. I haven't been able to assess if one would have anything to do with the other, but it is interesting that the ABS and brake issue all started within a few days of the A/C unit being replaced.
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2004 Prius (123,000 miles). For the second time in a month, while driving, the brakes have suddenly gone funny (for lack of a better word). When I first apply the brakes to slow the car, it initially does not respond, then, as I continue to gradually depress the brake pedal, the car will begin to jerk as if I am slamming on the brakes repeatedly.
Just before this symptom begins, the brake system warning lights and master warning light come on.
The first time this happened, I took it to a shop (not Toyota-specific) and they found that my floor mat had slid forward and folded and was under the brake pedal touching the wires. When they removed the floor mat, the problem went away. I threw out the floor mat and have been driving without one.
Today, the same thing happened again, with nothing obstructing the brake pedal.
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My 2005 Toyota Prius gave me confidence. Here's what happened:
I was driving on the Interstate with the cruise control set at 70 mph. Seeing traffic stopped ahead, I applied the brakes for a moment to slow, then released the brake to coast. Much to my surprise, the cruise control was still engaged and the car accelerated. I applied the brakes again, manually turned off the cruise control, then was able to coast. I drove for another half-hour without incident until the following afternoon when I drove again, experiencing a much more serious problem.
I had just turned left, and was straightening the wheels when I heard, and felt, a loud "snap" in the steering wheel, immediately upon which I knew the steering wheel was disconnected and I could no longer steer the car. Very, very fortunately, and only because I was already nearly stopped, I was able to stop the vehicle without incident.
However, I immediately recognized that, had this happened in almost any other scenario than being nearly parked, the outcome would have been markedly different. The steering wheel is completely loose, not controlling anything, and all the many steering wheel controls are equally disconnected, including the driver's air bag (SRS), something that I would have needed, but wouldn't have worked, had I crashed into oncoming traffic or an Interstate median.
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2008 Passat Komfort Wagon with 34,500 miles. Started to get grinding sound when I applied brakes, which diminishes as I drive. Thought it was rust, but sound is very loud and sounds just like pads are gone and digging into rotors. The brake warning light is not on.
Dealer told me rear caliper was closing unevenly and recommended service---not covered by warranty of course. When I picked-up car same noise as before. The service manager told be that the car was just washed and the rust built up in the last hour---I could believe some built-up, but the sounds made my teeth ache. When we went for a test drive the noise got quiter, but was still apparent. The SM told me this is a "normal" noise. I have had many cars with disc brakes, dating back to a 1960 Jaguar; none have made this "normal" sound.
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I have recently had the rear brakes on 2001 Aurora replaced. When car is driven about 20 minutes, there is a rubbing sound from the rear when the brakes are applied. I have taken the car back to the shop and they said for some reason the new pads were worn and put new pads on thinking it was bad pads. The noise continues. Is there anything special that must be done on this car when the rear brakes are serviced? Are there special type of brake pads that must be used for rear disc brakes? I am just going to sell the car if I can't figure out how to fix this problem soon.
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I bought my 06 Corolla LE last week and just started hearing a nasty squeaking sound whenever I applied the brakes. I took it to the dealer today and 4 hours later he calls me and tells me that he had to readjust my back brakes and lube them up and it should be fine..About a half hour into driving the car around town I start hearing this noise again. Now he's telling me to bring back in the morning to see what the issue is.
My question is besides the brake pads and rotors which were checked by another mechanic that said they were good what the hell could be the issue?
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my 99 s/w 2 started making a squeaking sound coming from the front right wheel area it goes away when I apply the brakes? is that one of those built in warning features to let you know the brake pads are getting low? the brakes have 86,000 miles on them.
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Back in April when I was getting my car inspected the mechanic told me I needed new rear brake pads. I knew I did so I let him change them.
Now I get noisy brake pads this moaning sound out of them when I apply the brakes while I'm backing out of a parking spot or my driveway. I've only driven about 5 or 6 hundred miles since then.
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My car sounds like it's dragging something but when I look under it there's nothing there. The sound it makes is comparable to the sound a snow plow makes as its plowing the road. The sound is constant but gets worse when I brake. What could be the cause?
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I noticed yesterday a sound, like a grinding sound, *sometimes* as I apply the brakes to stop. I'm at 68k. The noise only happens when the brakes are applied so I suspect there is an issue with my brakes again.
Some BACKGROUND info: At around 60k (or 8 months ago roughly), the front pads were replaced after the brakes were squealing and a pulsating brake pedal when stopping. The pads were replaced by a dealer. In addition, both front/rear rotors were turned at the same time. Rear pads had 40% at the time and were not replaced.
Some weeks later the pulsation came back and I went back again and they machined them again. For this current issue I was thinking about taking the car to someplace local (not a dealer) and getting a free brake evaluation of what is going on.
I'm also concerned that all this machining the dealer did to eliminate the pulsation may have decreased the life of the rotors and perhaps they need replacement now.
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I have a 2001 f150 4x4 5.4 Liter 72000 miles. There is a rubbing sound that is only audible when the brakes are applied. And only when applied with light pressure. The noise will continue intermittently until you come to a complete stop. If the brake is applied aggressively there is no sound at all. I am not sure if it is a brake issue or some thing in the front end that is flexing when slowing down.
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I just replaced my front brake pads and rotors. Car had no squeaking sounds before this. When changing the right front pads and rotor, the set screw that holds the rotor in place snapped on me when I tried to remove it. I drilled out the remaining screw and inserted an easy out / screw extractor to try to remove the broken screw. Screw wouldn't turn/budge and eventually the easy out snapped in half while trying to turn it. Here is where I fear I made a little problem into an even bigger one; I tried to remove the broken easy out by banging the back end (smaller end) of it with a hammer and screwdriver, hoping it would pop out from the front of the hub. No success, and continued using a lot of force to try to remove it from the rear part of the hub. Eventually I noticed the hub area by the back of the easy out bent a little from me using force from the rear to remove the easy out. I stopped there, bent the hub section back to original shape (didn't bend too much to begin with) and sawzawed off the protruding end of the easy out from behind.
After driving a few times I started noticing the squeaking sound coming from the front right wheel, the sound sounds like is in tune/harmony with the wheel rotation. As soon I step on the brakes, the sound stops. I had a similar sounding problem with a rear wheel a long time ago and it ended up being that the bearing needed adjustment. I know the front bearings are pressed in so they can't be adjusted. I am thinking the force used to try to remove the broken easy out damaged something with the hub or bearing or maybe the axle nut.
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Our gen 1 has developed a (currently minor) noise issue when braking. I'd like to sort it out before it becomes serious.
The brakes are still strong, and the regenerative system appears to be working. When the brakes are applied (even gently) there is a pulsing raspy sound, seems like it is coming from the front, driver's side. It is more rapid at higher speeds, and louder during rapid deceleration. I guess I'd call it 'grinding', although this is much less unpleasant than the classic 'grinding brakes' I've heard on other cars.
In any other car I would figure a warped rotor or worn out brake pad. But I had imagined that the regenerative system handled light braking, and conventional brakes took over beyond a certain threshold. Now I'm hoping they work in tandem, even on gentle braking and this is just a boring, simple pad issue.
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I've had my 2011 Prius II for two months, and I love it. One little thing bugs me, however. I have noticed that sometimes when I apply the brakes, the car lurches forward a little bit. But I keep the brake pedal on, and the car does stop. Is there something wrong with my brakes, or is this something that has to do with the regenerative braking?
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I have a 2012 Prius with 15000 miles on it. In the year I have had it, I have had this problem a few times. On rare occasions while I am braking the car seems to lurch forward. In particular I have noticed it while braking and hitting a bump. The problem is that when this happens the car seems to jump forward while the brakes are being applied. My foot is on the brake when it happens, but I am not braking suddenly. That rules out any anti-lock braking. I have had the dealer look at it but since it didn't happen on their test drive they couldn't figure anything out. They did open a case on it in case anything comes up.
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