Hyundai - Elantra :: 2002 - Brake Pedal Goes To The Floor Without Much Force
Jul 9, 2015
Working on a 2002 Hyundai Elantra GT. 4 disc, no ABS. Problem is the brake pedal goes to the floor without much force. I bled all 4 lines, but no improvement. Rigid lines from the brake master cylinder to the rear wheels were very corroded, so I ran new lines. The old ones pretty much fell apart when I took them off the car. I also replaced the brake master cylinder. I tried to bleed the brakes again, but couldn't get much (if any) fluid pressure at any of the wheels. Yes, I found a couple leaks at the junction points for the rigid lines, but I re-flanged those connections and got rid of all the leaks. Still no real pressure when trying to bleed.
So, I tried a second, then a third master cylinder with a new attached resevoir. No improvement. I bench bled the snot out of this third master cylinder because the symptoms clearly suggest air was likely trapped somewhere in the system. I used a wood dowel to fully actuate the cylinder many times after all the air had been released while I had short clear hoses running from the master cylinder outlets into a little plastic cup filled with clean brake fluid. I wanted to make sure there was no way air could be in the MC, and no air drawn back in when I released the wood dowel.
Next, I quickly capped off the MC outlets and connected a hose to each brake line individually where they normally screw into the MC. I then let clear fluid drain through each line until it was spilling out clear of each caliper bleeder with no air bubbles. So, no lines are kinked, clogged, or contain air.
I took every precaution to keep air out of the system, yet when I push the brake pedal, there is still virtually no real pressure generated by the MC. The power booster rod is shoving the master cylinder in as it should. I don't think there's any problem with the power booster.
I've used gravity bleeding, manual "push & hold the brake pedal" bleeding, vacuum bleeding, and I'm certain there is no air in the lines or calipers. Still no significant pressure coming from the MC when I push & hold the brake pedal to the floor. It takes maybe 20-25 pounds of foot pressure, but always goes completely to the floor with all the bleeders closed. If the pedal is held to the floor, fluid slowly seeps from the bleeders. I'm used to it spraying when doing this on a healthy brake system.
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I have been working on my 01 Elantra for 2 days now. My problem is that I have absolutely no brake pedal at all, it just goes right to the floor. and this is only when the car is running, when it is off I give it a quick pump and i have a nice firm pedal. I installed a new master cylinder, bench bled it and all that jazz. I replaced the rear brakes and a wheel cylinder, I have also bled the brakes multiple times, and mutliple ways. bled the master while on the car and all the brakes while the car is off and while it is running. I dont know what else could be wrong with this. I looked at all the lines and there are no wet spots, no hoses are swelling up. everything looks top notch...i just have no brakes why.
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My rear brakes developed a squeal when the brake pedal was released. My dealer replaced the rear brakes & disks at about 57000 miles. I had taken a salesman from the dealer to get an appraisal & he told me that it sounded like a simple adjustment would fix it. 2005 Elantra
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In the first instance of this problem, my brake pedal was stuck to the floor. By pumping it a few times, it gradually released and rose to the proper level. Brakes then seemed to work fine for a couple of weeks, until I reversed out of a parking space, but could not brake the car when I shifted into drive. I pushed the brake pedal to the floor, but could not stop until I ran over two large boulders that, stopped the car short of a big tree.
My mechanic doesn't know exactly what went wrong, but is replacing the brake cylinder. I fervently hope that fixes the problem! What could it be?
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On my daily commute in stop-and-go traffic, on a bridge, headed downhill, suddenly neither the accelerator nor the brake pedal would engage in my 2008 Elantra. Cars in front of me had sped up, then ground to a halt, and I was coasting downhill toward them, at a pace too fast for the handbrake to stop me. I couldn't downshift either (the car has automatic transmission, but shifting to low lets the engine slow you down). With nothing else to try, I shut off the ignition and then turned it on and, amazingly, all was back to normal. The dealer didn't find any trouble codes in the computer so they say the car must be OK to drive. But I don't feel safe driving the car. This might have happened and what I can do to fix it?
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I have a 2002 Honda Civic EX 1.7L. Recently the brake pedal would sometimes go to the floor when I'd apply the brakes. The car would still stop, but not as quickly as normally. If I apply the brake and it goes to the floor I would release the pedal and reapply the brake and it would stop at it's normal position and the brakes felt firm and the car would stop fine. I was told my problem was the master cylinder so I bought one on Sunday and replaced it. I bled the lines and it seemed like all the air was out. The brakes worked great and the pedal stopped in the same place and was firm.
Now today on my way to work the pedal went down a little farther than normal during one stop. On the way home it stopped in different places. The brakes would always grab and the pedal felt fairly firm wherever it stopped. I drove it this evening again and the pedal went to the floor like with the old master cylinder. One pump and they grabbed in the normal spot. What is going on? Did I not bleed the lines well enough? Is the new master cylinder just junk? I saw in the manual that air can get trapped in the ABS sensor, but an air bubble problem should just make the pedal squishy, not change where it grabs, right? I'm stumped and I really don't want to take my car in if I can fix it.
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2002 F-150 4x4 w/ 5.4 v-8. Brake pedal goes half way to floor before it starts to stop the vehicle. I have replaced and bled the master cylinder, bled out all of the calipers, and the calipers are installed correctly because the bleeder screws are at the top on all of them so no air can be trapped up there. The truck seems to stop fine, but just takes more pedal to get it to start stopping than I'm comfortable with. Could the ABS unit need bled out too? Or could it be an adjustment issue with the booster rod?
Also, something else I noticed, and it may be related..the ABS unit usually makes a slight clanking sound (like someone kicking a metal garbage can) a couple seconds after the key is turned on. I know its the ABS unit because a couple weeks ago I had a friends scanner hooked up to the truck, and I went into the ABS computer to clear the codes (have ABS light on from what I found to be a bad sensor wire on the front drivers side according to the scanner) and as soon as i cleared the codes on the ABS, it made that sound. I don't know if maybe there is something wrong with the ABS actuator, or if it's related to the brake pedal issue.
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I went to start my car this morning after not driving it for about three days and nothing happened when I pushed the start button. So I double checked to make sure it was in park, had my foot on the brake and again the car wouldn't start. The only thing that would happen is it would engage the accessories same as if I pushed the start button without having my foot on the brake pedal. I did notice that the brake pedal felt unusually hard as in, it would not depress more than a few millimeters. I decided to push on the brake pedal with considerable amount of force which resulted in it depressing maybe a few millimeters more. Then when I pushed the start button the car started up and the braked pedal sank a few inches like normal when the car first starts up. Everything was normal after this. Made a few pit stops on the way to work and the brakes felt fine and the car started perfectly normally.
I have had the car for only a week and a half. It's a 2012 isf.
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After driving in the rain and starting the car again after a few hours (as in starting the car again after work, or starting it first thing in the morning) the following happens: As soon as I release my foot from the brake pedal to go into "drive," there is a "thunk" sound from the rear of the car as well as a lurch. A soft "thunk" may have a soft 'thunk" sound, but a louder thunk will have a pronounced lurch/jerkiness from the rear. The car drives OK and has no problem with braking when I apply the brakes.
It happens only after driving in the rain. The dealer says the sound and movement are the normal result with disc brakes wearing off the rust on the rotors. Other wet weather concern (happened once): while driving in a couple inches of snow, the brakes began to grind and eventually failed to bring the car to a stop. Dealer rotated the rear rotors (due to uneven wear, although I had the car only two weeks at the time) and installed new rear brake pads. He said grinding brakes on an Elantra are normal in rainy, snowy, and dusty conditions. Is my car really safe to drive? Is there a problem? I'm considering trading it it as I don't feel safe. It is an otherwise OK car.
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Last week my brake pedal started going to the floor when I stopped, it still stopped and felt fine on the top half of the pedal travel but then it would just slowly fade to the floor. I took it to a local shop and they said the master cylinder was leaking internally and my rear brakes were shot. I have 75,000 miles and the rear brakes were original so I told them to fix it. This is basically what I expected it to be.
They kept thinking they were getting defective master cylinders but after the two Napa parts and two Carquest parts they realized they misdiagnosed it and said I needed to take it to the dealership. I paid for the rear brake job since it needed done anyways and have an appointment for next week at the dealership. What might be causing the problem? I see no brake fluid leaks, no vacuum leaks, the booster was replaced 25,000 miles ago due to noise, no ABS light on, no CEL on, no other symptoms.
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The other day I got in my truck and started down the driveway when I realized I had no brakes, I slowly backed up and parked it. I haven't driven the truck for approx. 2 weeks and it seemed fine then. The master cylinder is full, there are no signs of leakage from wheel cylinders or lines. Today I unscrewed the left front zert and no fluid came out. My pedal goes all the way to the floor.... Whats going on, and if its a easy fix?
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Is it normal to experience road vibrations in the pedal and floor? I've owned my car for about a month now (it's a used 2011) and it has brand new tires on it, but the past week or two it seems these road vibrations have worsened.. it's like I can feel the texture of the road on my feet. If I reach a freshly paved area it goes away like magic.
Is this indicative of a problem that I could have the dealer investigate? Or is this a "characteristic" of this car? I came from a 97 Corolla, with the exact same tires on it, and it did not have this problem at all. Then again, it was also much much quieter going over bumps too...
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I was driving around today and had to hit the brakes really hard for the first time. ABS kicked in and during the ABS 'action' the brake pedal rapidly went to the floor. With each 'pump' the ABS made it felt like the pedal sunk slightly.
This was on dry pavement, a little gravelly / dirty and the car stopped rapidly, but just as I stopped the pedal was VERY close to the floor, and with just a touch more pressure it did in fact hit bottom.
Sounds to me like the ABS pump needs to be bled, is that right? Can I do that myself with a VAGCOM? I hate having the dealer do anything, even if it is their job. How to SAFELY confirm if cars does / does not do this as well?
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2005 Volvo S60 T5, 90,000 miles. The brake pedal depresses almost to the floor. Dealer service has not had a solution to this problem. All brake components are supposedly nominal. Might pedal position sensor be faulty?
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My 04 Camry is having brake issues. It has 205k miles. The front pads are great and the back shoes are great. (Drums in back) I've had them adjusted multiple times but my pedal still goes almost to the floor. It's not the master cylinder cause I've already replaced that. The pedal doesn't bleed off either. But I have bled the brake lines and there is no air left in the lines.
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My mother went out 2 days ago to go run errands, she stepped on the brake pedal and it went to the floor (car still in garage and in park, low mileage car 81,xxx garage kept). I have not been able to duplicate the issue. The fluid has been changed twice since new, no signs of fluid loss, undercarriage inspection revealed nothing. I am thinking maybe a vacuum hose issue.
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When I go to start and depress the brake pedal it goes all the way to the floor. The brake fluid is at the full mark and my 2011 has only 25k miles. Where should I look since it did not go all the way to the floor when I forst got it with 6K miles.
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I drive a 1991 F-150 Lariat Extended Cab. Out of the blue, my brakes decided they didn't want to work unless the pedal is about 1/2 - 3/4 of the way down to the floor. As soon as I release past that 1/2 mark, they shut off. While this makes it great for tailgaters, it does not make it great for police officers.
We have already replaced the switch thinking maybe it was that, but alas it was not. I was reading in a couple difference places about the multiswitch? However, the symptoms other people had were similar, but not the same. I never tilt my steering wheel, so I dont know if that's the issue!
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2013 Prius c Two, bought brand new with 15 miles on it 5 weeks ago. A few times when driving, I noticed the brakes seemed weak, like they weren't stopping the car very well even at low speeds (My driving is mostly in town on residential streets, so I'm rarely going over 35 MPH. Even so, I'd have to really mash the pedal all the way to the floor to get the car to come to a complete stop, otherwise it would keep moving forward. Several times I ended up about 5-10 feet past the line, sticking the front bumper into cross traffic. Luckily no one hit me. I chalked it up to the quirks of a different car than the one I was used to, and figured if it kept happening I'd take it to the dealership.
On Monday, my wife was stopped at a red light. The light turned green and the car in front of her started to move forward. After a few hundred feet, he suddenly slammed on his brakes. She said her brake pedal went all the way to the floor, and the Prius didn't slow down at all. She hit him going about 25-30 MPH and totaled the Prius. She's an excellent driver and I've been with her before when she's had to panic-stop. She's never driven a car without ABS, so she is used to pushing the pedal hard and keeping her foot on it. She wouldn't even know how to "pump" the pedal. She swears the pedal just went all the way to the floor and the car didn't slow down at all.
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For the past several weeks, my daughter reports that she has to put her foot almost all the way to the floor to get the brakes to work. The brakes do not have an effect until her foot is 1-2 inches from the floor. It usually happens after she has been driving for a while without pressing the brakes. I’ve driven the car numerous times but haven’t been able to replicate the problem. Her commute is approximately 10 miles each way in stop and go traffic. The car is a Volvo xc70 with 200k+ miles. I've had it looked at by a mechanic who didn't find anything but it's continuing to happen. I'm suspicious that it may be a master cylinder problem and concerned about complete brake failure -- should I be?
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When I press the brake pedal, the car will stop. But if I keep pressing it while the car is stopped, the pedal wants to keep going towards the floor. I have to press hard for it to do this. I have bled the brakes. I've checked the calipers and the hoses for leaks and don't see anything. The master cylinder is topped up and I don't see any fluid underneath it. It doesn't appear to be leaking. The funny thing is, when I turn the engine off and press the pedal, the pedal comes to a stop and doesn't want to move after I pressed on it as hard as I can.
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