Prius (Gen 3) :: Hard Braking / Brake Rotors Become Rusty
May 18, 2010
I have never experienced what others have described as the brake delay issue, neither before nor after the ABS recall. I have even purposely driven over rough patches of road to try to duplicate.
After two days of rain, I noticed yesterday that my brake rotors were rusty. I remembered a comment from qbee42 about putting the car in neutral while braking in order to remove regenerative braking and to force friction braking to clean rusty rotors.
Yesterday I was approaching a stop light with plenty of distance and no one in front. I started braking around 45 mph with regenerative braking and then pulled the shift lever to neutral. When in neutral and with the regenerative braking removed, I felt the decrease in braking when transitioning to friction braking and I had to brake a little harder in order to have the same amount of braking as before in regenerative braking.
I can see where someone can "perceive" this as a surge forward but I only interpreted this as a decrease in braking force, as others have stated here many times.
I tried this again at the next stop light and felt the same "sensation" again and had to brake slightly harder when in neutral in order to have the same braking force. It was apparent to me that for the same brake pedal position that the friction brakes do not exert as much braking force as the same pedal position with regenerative braking.
Is this similar to what others are reporting as "brake delay" or "surge forward" issues?
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It's happened the last two times I've washed the car. I thoroughly cleaned the wheels with Sonax followed by soapy water, then washed the rest of the car. After washing, my usual routine is an initial towel dry, then I take the car for a short drive to shake the excess water out of crevices & the wheels, followed by the final towel dry & detailing.
This is happening on all four wheels. I know my front rotors are nearing their end of life, but the rears should have plenty of life in them (45K miles).
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Last June I took my 2001 Audi A4 off the road since I bought a more fuel efficient commuter car but I wanted to keep the Audi in the family until my oldest son started driving. That day has come and I'm making the car drivable again. I pulled the battery over the winter and kept it on a Battery Tender. I put it back in over the weekend and the car started up up and runs just fine. The only problem is that the rotors are extremely rusted and make a horrific grinding noise. Is there anything I can do to remove this rust? I assume I can just grind it off with the brake pads but that can't be good for the brakes which, if I recall correctly, are fairly new.
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I have an '09 Avalon with 34K miles. On braking we get a shudder. It's especially noticeable on gentle braking. I am pretty sure this is due to the brake rotors being warped or whatever the correct term is. Are these covered under warranty? I'm a skeptic and I feel sure the dealer will try and blame the tires but they are wearing evenly and are rotated every 5K. The ride is smooth when not braking so tire balance should not be an issue.
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My c is about 5 12 months old now, and the rear brake drums are already covered in rust.
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I replaced my warped front brake rotors a couple thousand miles ago and all was fine but when I went to swap over to my snow tires, I can see that the outer part of the rotor has been rubbing on the caliper bracket. This is happening on both front rotors. Could my new rotors be too thick or something?
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i have the brake (!) the ABS and the VSC lit up after i got new bearings and new brake pads and rotors, the car was also stalling before the mechanic removed these bearing "dust cover" circles that must have been causing speed sensor interfernce bc the spedometer was stuck on 0....so the car seems to be done stalling after those were removed and all the big lights went off then i hit the brakes a few miles later and those three lights came on...
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Just bought this van used last fall. Had an occasion, a few months ago, to brake quite hard (to avoid hitting a bird in the road--yeah, I know...) and felt a clattering vibration/noise in my brake pedal. It's happened a few times since then. Is this a problem that needs to be looked at or a normal reaction to quick, hard braking? (Braking noise in 2008 Dodge Grand Caravan)
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My 2004 Pacifica (130k miles) was left parked for 2 weeks while we were away. Upon return it didn't wqnt to back out of the parking spot. After about 1/2 revolution the wheels made a clanking sound and hung up. Rolling back and forth freed things up enough to drive the car to the mechanic (about 40 miles). And after the first mile or so everything seemed to go back to normal, with no absolutely signs of anything not wanting to turn smoothly.. The mechanic thought that the problem had been that the brakes were sticking due to the car being unused and said nothing needed to be done. However, upon examination he found that we could use new front brakes and 2 motor mounts. He said that the need for brakes and motor mounts was due to normal wear and tear, and was not related to the wheels hanging up issue.
But now, immediately after installation of 2 new front rotors and pads and 2 new motor mounts there is a vibration/shudder when braking from anything more than 20-30 mph, which was never there before. The shudder is rapid and sometimes pronounced like going over the warning groves cut into the edges of pavement on the interstate. He thinks that this may be a sign that there is a driveshaft issue, and dismisses it as due to an out of round rotor since they are new. I don't know what to think. By the way, he has always been an excellent mechanic, with a great reputation and loyal following.
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I switched my front rotors 4 times in the last 4 years.
I know you probably thinking its the driver. I've owned the car since 2012 and have only put on 46000 kms.
The rotors vibrate and have that weird stop and go hesitation when braking.
Is it simply OEM or nothing?
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It all started around 18,000 miles when I noticed a vibration under highway braking. I convinced myself that everything was fine for the time being and I would have the dealer inspect the brakes at my 20,000 service. Fast forward to the service and all four of my rotors were warped. The dealer turned them all and said I wouldn't have any more problems. The car sits at 28,500 miles now and I'm starting to get the same vibration sensation as I had at 18,000 miles. I'm definitely going to be bringing the car in for it's 30,000 mile service and I will bring up the issue again. What type of warranty is on the brakes as I hope they will replace the rotors this time.
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Recently bought a 2001 Excursion 4x4 but failed to take it on the highway and get it up to speed. It shakes real bad around 65 but I can't tell exactly where the shake comes from. Here is what I've fixed so far. Balanced tires, Alignment, Fixed Steering Linkage, Balanced rear drive shaft, new shocks, new brake pads (slightly warped rotors but shakes w/o braking), lubed everything, replaced all fluids except transmission which was clean, no metal in any fluids, removed front driveshaft. Checked wheel bearing as best as I can.
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Ever since day 1 when I make a hard stop i had a vibration when braking - heard i need to put bigger rotors on also change calipers - asked FORD about this and they said it would have to be aftermarket rotors and calipers ???
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I recently put new wheels on my 2012 (more open spoke than stock ones), very soon started to notice the brake drums getting rusty. Is there anything I can do to 1) get rid of that and 2) stop it from happening? It's really killing the look of the new wheels. (The wheels themselves are spotted right now from sprinklers this morning.)
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I noticed the front brake pads were touching the rotors when I was painting the brake calipers. I had my e-brake engaged and in park. I'm assuming the e-brake only brakes the rear wheels because the front rotors were still movable. Although the car still rides fine but I'm not sure if this is normal.
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I have an 03 Camry LE I4 with about just under 100k miles. Recently, under semi hard braking at highway speeds, the steering wheel will shake quite a bit to the point that I don't feel safe braking hard. I initially thought the brake rotors were warped, but those were replaced less than 2 years ago somewhere around 80k miles. I've taken it to many shops and here are the verdicts they've given me:
1. Rear drums are warped which is the problem (I don't think so...)
2. Control arm bushings need replacement (coming from shop who did brake work before)
3. Ball joints need to be replaced
4. All rotors should be resurfaced
What should I do?
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So my 07 with 125k miles has had new rotors for about 50k miles or so, but for a while now when the brakes get hot it gets a violent shudder on braking at highway speeds....the odd part to me is nothing at lower speeds, and not always at higher speeds....do I just have warped rotors again? The rest of the front end I good and tight....
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Just thought I'd ask, I was at the dealer last week and while there asked them to take a look at my brakes because they were making a slight screeching sound but only when first applied when speed was slow.
They said it all looked good but that the sound I was hearing was from grooves that had been etched into the driver's side front rotor. I find it hard to believe that my rotor would have grooves in it after only 21k miles, considering I don't track it or drive it aggressively that would have caused that.
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My 2007 Prius brakes extremely hard at low speed (while I am applying the same amount of pressure). While decelerating, I let the regen braking do most of the work until I get to about 10mph, then I press the brake so I will have equal pressure until I stop. When I get to about 5mph I feel almost a lunge where the brakes aren't working as hard and then the brakes take hold extremely hard. My prius has been doing this for awhile not depending on the weather, but I finally noticed it worse than normal yesterday when it was raining and my car braked hard and actually skid and the traction control light came on.
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I slammed on my brakes the other day because a car pulled out in front of me. When i let off the brakes i noticed the car did not move for a good 1-2 seconds and a traction control light was flashing. I didn't think much of it until i was sitting at a light and decided to see what happens if i press my brake pedals in hard again... the traction light turns on again and the car doesn't move when brakes are disengaged for a few seconds. Is this normal? It feels like my hill assist on the BMW. Why the traction light turns on? My car is a 2010 Prius III with 5k miles.
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I just had my front axels replaced. The Cv's were clicking. That problem was fixed.
Metal clunk at initial acceleration and hard braking (none during steering)...
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