Lexus GX 2004-09 :: Keep Getting Feedback In The Brake Pedal At Stop
Feb 28, 2012
I am looking at purchasing a used 05 gx. It has about 109k on the odometer, a lengthy carfax report showing that the maintenance has been kept up since day 1. It's a one owner and is very clean. While borrowing the car for an afternoon I noticed two issues that is causing hesitation.
While stopped at a light I kept getting feedback in the brake pedal, like a light thump in a pattern of two at a time.
The second, and this might be normal? While examining the outside of the car with the engine running I heard a sound at the rear of the car by the rear wheel. It sounds similar to a compressor, maybe for the air ride suspension. I checked the height control in the car and it was set to "N".
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After replacing several front end suspension parts I noticed an issue with the brakes. The car stops fine and in a straight line but right before the car comes to a complete stop the brake pedal drops about 1/2inch and if I am not holding the wheel, I see it move to the right ever so slightly. It does it every time and I am thinking that a component was either damaged or is not installed correctly.
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I was going down the highway at 70mph and came up to a toll booth when the brake pedal went to the floor and the car wouldn't stop. I hit the pedal hard and the car stopped in a very jerky manner as if the abs was initiated. I looked at the dash and the ABS, (!), and brake lights were illuminated. I turned the car off and then on again and the lights were off and the brakes worked normally again.
The Toyota dealer in CT said the weak battery was causing an under-voltage at the stroke sensor and replaced the battery. They told me if I lost my brakes again (!) I should bring it back for a new stroke sensor. In hindsight, I should have just told them to go ahead and replace the sensor. Two days later, driving down Florida route 301 in the rain, a stoplight went from yellow to red in about 3 seconds so I hit the pedal hard. The back brakes immediately locked up, the front wheels kept rolling, the car swerved and slid through the red light intersection sideways.
I counter steered and slid between two cars at the other red light, on the wrong side of the road as I straightened out. The car swerved and slid sideways again in the other direction and then spun around so I finally wound up in the correct lane, and I drove off like nothing happened. I was doing maybe 35-40 at the time and it's a miracle no one got hurt. Again I look down and see the lights illuminated. I cycled the power switch as before, and again the problem went away.
About an hour later the problem came back and this time no amount of power cycling will clear it. Basically what I'm understanding now is that it's the regenerative side that doesn't work with the bad sensor. The hydraulics kick in at around the last 10% of the pedal so the car will still stop, but I have to floor the pedal and that makes the car think your trying to lock up the wheels so it initiates the ABS system which makes stopping jerky and unpredictable. BEWARE the stoke sensor!!! What a dangerous design!! The dealer has the car now...
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2005 with 110K miles. Had oil change about 2K miles ago, tires rotated about 1K miles ago. I was at a stop light when I felt a little movement in the brake pedal and the lights all came on. Brakes continued to work, but somewhat harder to push the pedal. When first applying the brakes, there was a very slight wandering of the car, which was easy to correct.
I drove the car home and turned it off. About an hour later I started it and the problem was gone. I took it to an independent garage the next day. Their scan tool found C1357 -- decrease pressure solenoid fault -- but could not go further into sub codes. They recommended that I take it to dealer.
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2003 - I tried to change the brake fluid with a MityVac. I've done it to dozens of cars with no problem. With the Prius it didn't take it well as I have to pump the pedal sometimes to stop or the pedal goes way down. Only now I read about how a special Toyota scan tool is recommended to do it. Is there any other way? I only really did the front brakes since after trying one rear wheel cylinder and getting nothing out of it, I quit. The dealer wants $165 and I'm sure that doesn't include any extra shop fees and such they tack on. What other way can I try before taking it in?
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In my 2008 F150 with 108,000 miles, I am having a vibration in the brake pedal. When I am stopping or at a dead stop. I first thought it might be the rotors needing to be turned, but the vibration seems to go away when I turn off the a/c.
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How to reduce some of the sponginess in a brake pedal? I've already checked my brake fluid level, am positive there is no air in any of the lines. Looking for fixes to solve my issue of having to put my brake pedal to the floor before the pads start to grab the disc?
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Bought a 2004 GX470 a few months ago. Took it into the local Toyota dealer for oil change (40+ miles to nearest Lexus)
They told me I needed to replace front brake pads, so I did that. Immediately after they finished I noticed what I would describe as a clack or clank sound when pressing or releasing the brake pedal.
This sound was not there before. I went back inside and told them, the tech came out and listened and said it would probably go away. I took the car back in a couple weeks later and they applied some type of lube which didn't work. The service rep said that the only way to remove sound was to replace some type of pin.
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I have a 2004 GX470; bought it new. The last few months I have been hearing a strange noise from the driver's side; seems to be coming from under the floorboard and can sometimes feel a vibration in the brake pedal. The noise is similar to a cat meowing. Have a son who is a GM tech; he said it sounds more electrical than mechanical. It happens mostly when I drive it cold. Seems to also happen more when turning/braking. I had the main belt replaced this summer. Should I have the tension pully replaced?
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I made a scary discovery the other day, or I should say, my son did... Apparently, you can shift the lever out of park, reverse, any gear without pressing the brake pedal first! 06 GX with 77k ...
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I just recently got 2008 gx470 as a college graduation present in May. Very exciting having a GX as my first "real" car!!
After driving a few months, I have noticed that my brakes are acting a little funny. Whenever I brake, the car seems to "skip" until I come to a complete stop. It's not a very serious problem, but more of an annoyance.
I took it to the dealership and they told me that my rotors are "warped" and need to be shaved down. They quoted me for 600-700 dollars for the fix...
I just hit 43k miles
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I bought 09 GX-470 4K miles ago..has 50K on it. Ran perfect when we bought it. wife said it started doing it 1 week later. I drove it and felt like warped rotors to me. replaced front rotors and pads with cheap wearever brand...I Know...I was sort of trouble shooting..did nothing ...did the back rotors and pads and seemed to fix it..did proper bed-in of new parts but, never checked at speeds above 55mph. recent trip got us up to speeds above 55... at these faster speeds when brakes are applied we get a nasty wheel wobble and a pulsing pedal...braking below 55 it feels fine.. thought's ?? last car was a 4runner which has the the same rotors and pads and never had a problem...could it be ABS ?? should I go with new oem rotors and pads ?
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Back brakes don't bleed. car doesn't stop anymore. The passenger back brake stops even though it doesn't bleed, but the driver side brake doesn't make the tire stop and it doesn't bleed. The e-brake works. I just need to know what could be wrong. 1995 Oldsmobile Cutlass...
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I noticed that the car take a very long time to come to a complete stop and I have to press the pedal hard to stop. The brakes have approximately 11,000 miles on them in city driving conditions. Also the slightest bit I relax my foot, the car begins to creek and move. I have to have a very firm foot on it so it won't move. Is it time for new brakes or should I first begin to look at other potential problems? Also I noticed the car pulls to right slightly could that be related?
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I have a 2005 4.2 with 89k 4wd. The brake pedal occasionally goes farther towards the floor when coming to the end of a stop. I have bled the brake lines. All brake pads, rotors, and lines are good. Could it still be air in the lines?
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Bought the car used a few months ago with a little less than 72k miles. At 72k miles, I replaced all brake pads. Car now has 75k miles on it. Wife just got back from a 1k mile road trip with it.
I took it for a little ride, and noticed this problem about 3 times, it doesn't happen every time. There is no vibration or anything when slowing down and stopping. But, a few times, when the car was at, or almost at a complete stop, the brake pedal would feel like it was buzzing a little bit, and I could hear a springy sound. I tried to reproduce it with hard braking, but couldn't. Seemed to only happen with slow, gradual breaking, and when the car was just about at a complete stop. Brake fluid is full. No lights on dash. Asked my wife if she slammed breaks at all, or had any problems, she said no. Then she said she experienced what I did once, when she was at a rest area, stopped
The only thing I can think to compare it to is how the brake pedal feels and sounds if you lock up your brakes, and the ABS is doing its thing....which I haven't ever done with this car...
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2005 VW Jetta: The brake indicator light came on in the dashboard. I took the car to the dealer, and they replaced the front brake pads. Indicator light is now off, but I drove away with a new problem: The pedal fades as it comes to a stop. I have to push almost to the floor to stay still. Sometimes the car drifts forward if I'm not consciously pushing down harder than usual on the pedal. The dealer took the car back for a few days, replaced the master cylinder, bled the lines and did not charge me. But the problem is still there. What went wrong?
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I have an issue that i have been trying to resolve. When i depress the brake lightly to a stop, the pedal pulsates. But if I depress a little harder it pulsates initially midway down and then it stops as i press harder to brake. (I hope this is easy to understand). so... press lightly, pulsates until I reach a stop. press firmly, pulsates briefly, then no pulsation until i reach a stop.
I have pretty much replaced everything. Calipers, rotors, pads, lnes, fluid, hardware. lugs are torqued to 100ftlbs.
Also the caliper is not sticking the problem persists even after I replaced the calipers. I am left at a total loss here. I cant think of anything else. One thing that i noticed is, the LUGS are really hot to the touch after driving it for 15 min or so.
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I have only 42k km or 26 k miles. Brake stops but soft. The brake pedal sink if you apply pressure after a stop. Feels like someone open a valve. The pedal go to very low. I am find the stopping power is poor. Brake fluid is brownish. I hope it is not the master cylinder.
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I've been noticing an odd noise in the brake pedal in our '03 Santa Fe. I don't hear it all the time (almost never on the highway), but especially hear it in stop-and-go traffic. It's sort of a whirr, a "RRrrr". I've googled and watched YT videos and it's definitely not a hissing sound or a grinding sound, nor do I notice any difference in the brakes' responsiveness.
I'm apprehensive of taking it to the dealer for service because I only plan to have this vehicle for at most three more weeks. Have only held onto it this long because we couldn't afford to replace it until we sold our house-- which we've just done, and are about to move to a city about an hour away on 7/5. We'll trade in the car within a couple of weeks of moving.
The noise is definitely from the pedal and isn't anything like squeaking brake pads (I currently live in the DC metro area, so squeaky brakes become very familiar with all the stop-start traffic!). The videos I've found that point to a booster problem have a decided hiss, and it's not that either. Don't want to be unsafe in the time we've got left, but also don't want to throw another thousand bucks (every time something breaks in that darn thing, it always seems like it's about $800) into a car we won't have in a month's time.
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I bought a new 2012 Elantra in March. Every so often I get a strange vibration through the brake pedal when I'm at a complete stop (red light/stop sign). It happens intermittently and I can't narrow down any exact cause. It happens when the engine is cold, fully warmed up, A/C on, A/C off, only been driving for a few minutes or driving for a few hours. No system lights come on. I've taken the car to the dealer twice and discussed this with them. They've not hooked it up for any diagnostics as yet. I don't think it's a vacuum line, engine or transmission issue because it is intermittent. I also don't think it's a defective engine/transmission mount. Could it possibly be the ABS module?
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