Soft Brake Pedal Only When Car Is Running

The car stops abruptly as soon as I get the pressure on the second pump of the pedal. CAUTION: Brake fluid is harmful to painted and plastic surfaces. First, you can avoid unwanted bills and keep the money for something else. Doing this two or three times (depending on if I have enough room to reapply) will get the pedal higher and firmer every time. That's why a soft, spongy-feeling brake pedal that doesn't resist pressure and goes straight to the floor is a common sign that something's gone wrong in your brake system. 5 Most Common Symptoms of Worn Brake Pads & Discs Brakes are the most important safety feature of your vehicle. symptoms on mine also included the pump running ( under the sphere ) whenever i pressed the brake pedal , to change the sphere, you need only depressurise the brakes by pumping the pedal 20 or more times until hard ( already this state in your car ) ,wrap the sphere mounting an old rag to catch fluid and then with an 8mm allen key , and a long. In our tech area, you’ll find our Master Cylinder FAQ answering common questions from classic car owners. It worked because you had just enough brake fluid in the system! If there is fluid (any fluid) in the reservoir and as long as there is brake fluid in the lines and wheel cylinders, the braking system will work. Correct, there was a TSB for soft brakes - but not this issue I am posting about. I have used the same push rod when converting from single to dual reservoir and from drum to disc , never noticed a difference. We knew we needed something that would last 250 laps without getting a soft pedal or worse, loosing the brakes. Pushing the brake pedal down feels like it will work normal until about 50% when the brake pads finally feel like they are contacting the rotor. Bleed the brakes. I took the time to bleed the brakes system and the fluid was a brownish color, but it has been nearly 10 years since it had been replaced. The pedal is stiff when the car isn't running, but once I start it and press the brake the pedal drops to the floor. If you then keep your foot on the pedal and switch on the engine the pedal should go down. Poor pressure can result in more time, distance, and/or effort to stop. Initially the brakes bite lightly, and then the pedal keeps going down, and you have to keep applying the brakes more and more to get the car to stop normall. 7L to be specific. Lightly pumping the brake pedal with the engine running should cause this noise to disappear. EG - firm pedal with engine off - start the car with foot on brake - after engine running, pedal will slowly depress almost to the floor. Anyway the brakes work fine but are spongy as in the pedal travels further before it bites. She hopped in and stepped on the brake pedal before the van backed into the street. If you step on the pedal and feel a vibration, you're in for some troubleshooting. The best way to accomplish this is by installing a dual master cylinder and power brake booster system. I just picked up my sport DC yesterday and put about 100 miles on it today. however if you have applied the brakes say 4 or 5 times, the pedal goes rock hard. First I replaced a rusted and leaking brake line going to the right rear wheel cylinder. Then sitting stationary, push down on the brake pedal with both feet really hard and you will hear a click at the rear of the car. When the brakes are applied the piston must travel further than normal and will be noticed as a low brake pedal. It was spongy to the point the pedal went to the floor and it was taking about 5 times longer to come to a stop. Solutions for a spongy brake pedal. Causes Of Brake Judder And How To Fix It Sep 15, 2016 The moment you press your foot on your brake pedal to slow your car down is when you need to feel the most confident that the parts involved in stopping your car safely and in time are working properly. Brake pedal goes to floor when engine is on and don't when car is turned off. I did notice a softer pedal feel than in my "03 taco DC. it is easy to replace it sit on the side of the throttle body and is only held on by two screws, these are not expensive approx. Release the key once the engine cranks. Start an automatic car by pressing the brake pedal when the vehicle is parked. The brake pedal is hard if you pump them up when endine is not running, and it stays firm. A key aspect of keeping your pedal feeling solid after upgrading to a better brake fluid is to switch from standard rubber lines to stainless steel lines. The rear wheels of a front wheel drive car lockup heavy braking. get in the car 'dont' start the engine and press the brake pedal several times, on off 5 or 6 times you should find the pedal becomes firm and hard to press, ie normal. what if after doing all sorts of brake work on a truck that already had a soft pedal (due to what looked like nearly destroyed front rotors, bad left caliper and nearly gone pads – all changed to new during my work), the front brakes with all the new stuff dont seem to be getting enough fluid pressure. A ten pound residual valve will maintain a line pressure to the rear to keep the drum brake shoes out close to the drums giving a higher firmer pedal. My understanding is the prop valve is trying to regulate the brake fluid and a pedal drop on a disc brake car is normal as long as the car will stop. This is a two-man job that requires a coordinated effort. Then I suddenly had a spongy brake with the motor running, and have since replaced the master cylinder and the power brake booster, and also had the brakes bled by a local shop, as I understand the ABS has at times caused difficulty in bleeding the brakes. Now, there seems to be some air trapped in the ABS/ESP- accumulator system. Troubleshooting Your Brakes Spongy Pedal: 1) Air in system. I don't use the parking brake when I park, just leave it in gear, so when it does happen (rarely), I've gotten quick at pulling the parking brake. Originally published January, 2017. A: To me, the only reason for you to buy a new car is because you want one. Star Auto Mall 78 has over 1,500 affordable vehicles in stock. Brakes were fine and bled before bushing job, but I opened a line not knowing I didnt have to take a front caliper off so I re-bled everything. This spring I replaced the MC, front calipers, pads, rear drums, cylinders, and shoes. This Ford Shelby GT500. The topic ‘Car brake help – 'sinking' pedal’ is closed to new. The power your foot applies on the brake pedal is assisted by hydraulic pressure. Brake pedal is spongy Inspection Service When you press your brake pedal, it should feel firm and solid. brakes bled pedal goes to floor when started Broke a brake line replaced can't find any leaks. I have changed the brake fluid every 30,000, replaced the front rotors once. While only a miniscule amount of air can enter the system during each check, over a period of months or years, the air will accumulate and can result in the "soft brake pedal" or "low brake pedal. had the master cylinder replaced and it is still acting the same. The master cylinder is full, and I have never added fluid. If you notice a difference in the resistance in the brake pedal — it feels “softer,” or sinks all the way to the floor mat when you press on it — it’s a sign you need immediate service. A brake pedal that feels mushy, spongy, or that slowly sinks to the floor when depressed can be best described as brake pedal sink. If your brake pedal feels spongy or goes to the floor, check your brake fluid immediately. Well after poking around on the web I read that without the scan tool you have to remove the two sm. After a short while, the brake pedal got mushy so I replaced the master cylinder because I couldn't find anymore air in the system. Don't mix the two. With the car running and at a stop, I can apply the brakes and the pedal sinks as I press it down, there doesn't seem to be any resistance until near the end of the travel. Tech B checks the brake operation of the brake caliper piston. Do you have rear drums? They can cause excessive pedal movement. From your question, I know that the car has power brakes. When you're done, be sure to remove your foot from the accelerator pedal first, then the brake pedal. This guide is only for bleeding the brake lines, if you need to change the pads, visit the Front Brake Pads Replacement Guide or the Rear Brake Pads. Visit Exclusive Auto Wholesale online at www. Still a soft pedal that travels too far. Solutions for a spongy brake pedal. If the pedal is still good and firm with only the front brakes connected, then you know that the MC and front brakes are not the problem. When you put your foot down on the brakes you expect your car to quietly slow down and come to a stop. An automobile’s brake system has a soft, spongy pedal. If the pedal goes to the floor then you have a hydraulic leak in the brake system, this can be confirmed by checking the brake fluid, if its significantly low or empty I'd look for a fluid leak. brought vehicle into shop and checked over, pedal is soft, if you pump it several times, it holds breifly and then fades away, the rear brakes were junk, there were chunks out of the rotors, replaced rear brakes, there are no lines leaking on vehicle, replaced the master cylinder. Then there’s gear engagement, using what can be a tricky dog-leg manual box. Having a car that can stop as well as it can accelerate is a must, and by performing regular brake maintenance and getting familiar with your brake lines, you'll be able to make sure your car can stop on a dime. Then I start the car, and with the motor running, the pedal turns to mush and I can push it to the floor. Doing this two or three times (depending on if I have enough room to reapply) will get the pedal higher and firmer every time. then with brake applied,start engine. Remember, if your car is equipped with ABS (most are these days), the pedal will seem to vibrate when you brake very, very hard. i replaced front calipers (lucas 54 from mk3), 22 mm mk3 vr6 master cylinder, and power bled the sh!t out of the whole brake system (followed bentley instructions). Brake pressure can be changed in the car setup on cars that have brake pressure modulation (from powered braking systems) in real life. Brake pad replacement is the most common repair job for automotive brake systems. So, this afternoon, we flushed and bled the brakes and no difference. Something is obviously wrong, and you need to find out the cause. Each of your brake calipers or brake drum wheel cylinders will have a bleeding screw that will allow you to force air out of the lines using the brake pedal (or a brake bleeding kit) and the proper bleeding procedure for your vehicle. The face of the disc may have some rust or dirt on it,. Bled brakes seems like their is plenty of firmness on pressing pedal but when I start blazer pedal goes to floor abs light never came on and still doesn't come on and no codes any heip thanks. Note that the pedal was not soft before I replaced the rear pads. I'm having the same intermittent soft brake pedal problem with my 2008 Mariner. Always pump off the Vacuum from the brake booster first, key off, by pumping the brake pedal 3 to 5 times, now you can feel the brakes for a hard , sponge free test. I had to push it almost to the floor before it would begin to stop. Changed my M\C's up from 3/4" to 7/8" front 13/16" rear and although I get a firm pedal earlier in the pedal stroke it takes an extreme amount of pedal pressure to even get the car to slow down (if this is what "man up" means Fran, your a stud!) and to lockup the brakes is impossible. After 2 master cly. However, this truck is more refined and the brakes actually work very well, more like that of a luxury car sports car. Compounding the problem is an attempt to use a large bore master (1-1/4” or larger) on a small booster. Hydro-boost brake systems are self-bleeding if there is no other problem in the system. That is the brake line distance from the wheel to the M/C. The most recently reported issues are listed below. spongy pedal with hq brake upgrade - posted in Brakes, Wheels and Tyres: hey guys im running rebuilt booster with hq rotors with girlock calipers and rears are hq drums , i have bleed brakes twice anf pedal still feels soft half way , is there anything i can do to help firm the pedal up ? master need to be improved ??. During normal use brake fluid can become contaminated and the master cylinder wears internally but only for the length of your brake pedal travel. As soon as it does, put your foot on the brake pedal. So, this afternoon, we flushed and bled the brakes and no difference. Off Lease Only has taken reasonable steps to ensure the accuracy of the data displayed, however, HomeNet Automotive and Off Lease Only are not responsible for any errors or omissions. From your question, I know that the car has power brakes. However , when the engine was not running the brake pedal was solid as a rock it was not going to move, just like it used to be,whether the engine was running or not. Learn more about the most common brake issues and their solutions, here. Check your tachometer for the stall speed and see if it reads lower than it should be. HYDRO-BOOST TROUBLESHOOTING. No Pedal with New Master Cylinder Installation - Quick Fix or Check? See more from Wagner A "no brake pedal" condition can be encountered after a new master cylinder is installed, leading the technician to believe that the master cylinder is defective. The contact stated that while driving approximately 40 mph, the brake pedal traveled to the floorboard upon being depressed without warning. You can make the brake pedal more sensitive by bleeding the air from the brake system. It pedal gets hard when the motor is off because there is no vacuume. The result is a clutch pedal that engages with almost the same force as the brake pedal, but with a shorter stroke. I think that the air got in during my attempt to bleed the clutch slave manually for the first time and pumped the clutch like a brake pedal instead of just holding to the floor I did not let the master cylinder run to low and when the clutch went the slave piston was fully extended I am going to try to make the pressure bleeder and try bleeding the whole system after I unclog the bleeders. Vacuum pump reading 21 in hg. A soft pedal under normal use, as mentioned above, usually indicates air in a line somewhere, especially if this is a change from the way the brakes felt prior to the fluid change. How much should brake pads and discs cost? We've compiled estimates for brake pads and discs replacement costs for some of the most popular car makes and models. When off pedal is nice and stiff,, but when engine is turned on, NO pedal. Improper operation, noisy system. 4 Have your friend slowly pump your brake pedal a few times. Spongy brakes is always caused by air in the brake lines, but there can be several different causes for this. Would air trapped in the ABS affect the pedal feel?. When the brakes are applied the piston must travel further than normal and will be noticed as a low brake pedal. Finally getting the car back up and running and this is the last thing holding it back from driving. Make sure the rear shoes are adjusted out enough where you can only spin the wheel once. But in rare cases we may have trouble and the pedal will feel good with the engine off but with the assist its soft and sinks, in that instant we may bleed with the car running to help determine if. 7L to be specific. Everyone thinks of a car cover when it comes to storing a car. The parking brake of the ’ hydraulic. Still on a dual circuit system(as Lee points out) the front brakes are actuated by the front part of the master cylinder and the back brakes are actuated by the rear so if your front brakes are pumping up fine with no air then the trouble shooting the problem lies with looking at the back part of the master cylinder and the rear brake circuit. Changed my M\C's up from 3/4" to 7/8" front 13/16" rear and although I get a firm pedal earlier in the pedal stroke it takes an extreme amount of pedal pressure to even get the car to slow down (if this is what "man up" means Fran, your a stud!) and to lockup the brakes is impossible. Vacuum pump reading 21 in hg. Press the brake pedal several times to exhaust all of the vacuum from the system. The best way to accomplish this is by installing a dual master cylinder and power brake booster system. If you hear a hissing noise inside the car or the pedal is firm (like when the car is off) then your booster is bad. Simple physics tells us why: a pressurized fluid running through a rubber line is going to flex the outside of that tube, which will result in a softer pedal and less immediate response. If the brakes feel spongy, you should immediately have the car's braking system diagnosed and take necessary actions because it creates a potentially unsafe condition when you are driving. The pedal is hard when the engine is off and extremely soft when running. It almost feels like you're stepping on a sponge. new Booster, 3 master cyls, New calipers, New wheel cylinders in the rear. Brembo is an acknowledged world leader and innovator in the field of automotive disc brake technology. You're driving along and notice your brake pedal seems soft. The brake fluid which is present at each bleed screw should be clean and free of air. LIke putting your foot into a pillow. Clamp only one line (either one) pedal sinks to just over an inch from the floor and stops. hard brake pedal is the most obvious sign only way i know to test a booster, is to turn engine off. Use of DOT 4 or 5. It definitely won't be as boosted as factory, but keep in mind, when you are cruising, the engine will make 20" or so, and the booster will "store" that level of vacuum for the first press. A few pumps & the pedal was up & tight again. A pedal that has good pedal reserve with the vehicle parked, but a low brake pedal while driving should have the rotors and wheel bearings inspected for lateral runout. The contact's daughter owns a 2009 Ford Escape. In fact, other than having to pump the pedal twice the brakes really work well. Spongey / long brake pedal, only when the engine is on?: Hi all, Need some fairly urgent advice, I am due to be at Brands Hatch tracking the '5 on the 9th! Essentially, my brakes are useless. The contact stated that his daughter continued to depress the brake pedal until the vehicle would stop. Hi , just to let any one know if you have a late model fiesta 2009 onwards if you are expriecing a spongy or low brake pedal and there is no obvious reason or leaks it can be fixed. Why a 1997 Toyota corolla brake pedal is soft when the engine is running and when the engine is off pedal is firm what could cause this? Unanswered Questions What are 3 examples of corporate mergers?. I did this and the pedal was easy to push which to me indicates the booster is fine. I have used the same push rod when converting from single to dual reservoir and from drum to disc , never noticed a difference. In truth, this is a video about how to replace and bleed a master cylinder on a C1500, 1990 5. 51 Answers When the engine is started the brake pedal goes almost to the floor, will not stop car. ASE: A5 Brakes (Test 1) STUDY. I have 33 Plymouth with a hard brake pedal. Technician A checks the fluid level in the master cylinder. With the car running and at a stop, I can apply the brakes and the pedal sinks as I press it down, there doesn't seem to be any resistance until near the end of the travel. No boost, no pedal movement. Pressing on the clutch pedal like this prevents you from being able to use the accelerator. Put a block of wood under the brake pedal to stop the stroke before running out of piston, keeping air out of the lines. Mine effects pedal position at 2 different levels, not just soft brakes, but a failure of the ABS valve system. The only way to determine the cause is by taking a look at the braking system or taking the vehicle to a qualified mechanic. Install plugs in both ports of the master. After you turn the car off and apply the brake there should be enough vacuum to get assist from the booster for 2 applications of the pedal before it hardens up. Toyota Tundra owners have reported 10 problems related to brake master cylinder (under the service brakes category). If you do not feel comfortable checking your brake pads, take your vehicle to a local dealership or repair shop where a professional can do it for you. Inside your brake lines is a liquid called brake fluid, which transfers the force of you hitting the brake pedal to the brake rotors and pads to immobilise your car. When you wish to brake or come to a stop, do not coast to a stop while pressing the clutch pedal. I bought the car knowing they were soft and the pedal had a bit of travel, but I had assumed a good ol' bleed would. The pedal travels only a short distance and the "jump-in" is steep; too steep for my taste. I have 33 Plymouth with a hard brake pedal. 05mm), then brake vibration will occur through the steering. Although this only happened at very low speeds, I had the brakes bled, then a new master cylinder fitted. I had to park my car last November because the brake pedal was going to the floor and wasn't safe. My test car had a $3,600 option package that contained such items as the larger 22-inch wheels, a 360. You're so familiar with it, in fact, that you can probably tell if something's different. Each of your brake calipers or brake drum wheel cylinders will have a bleeding screw that will allow you to force air out of the lines using the brake pedal (or a brake bleeding kit) and the proper bleeding procedure for your vehicle. We had to choose the right package for our asphalt project car. Soft brake pedal questions I've had my 97 Limited since around 99-2000 and for the first few years it was all roses, but sometime around moving to Arizona in 2004 I noticed that the brake pedal felt a squishy. If you hear a hissing noise inside the car or the pedal is firm (like when the car is off) then your booster is bad. The person driving the brake car is responsible for braking when needed but of course, that. I think that the air got in during my attempt to bleed the clutch slave manually for the first time and pumped the clutch like a brake pedal instead of just holding to the floor I did not let the master cylinder run to low and when the clutch went the slave piston was fully extended I am going to try to make the pressure bleeder and try bleeding the whole system after I unclog the bleeders. We're sorry. When stopping I need to push the brakes pedal all the way down before it'll come to a complete stop. I took the time to bleed the brakes system and the fluid was a brownish color, but it has been nearly 10 years since it had been replaced. spongy pedal with hq brake upgrade - posted in Brakes, Wheels and Tyres: hey guys im running rebuilt booster with hq rotors with girlock calipers and rears are hq drums , i have bleed brakes twice anf pedal still feels soft half way , is there anything i can do to help firm the pedal up ? master need to be improved ??. Is the pedal height strictly set by the amount of, or lack of, air in the system? The pedal doesn’t feel soft, but I cannot get is back to ‘normal’ height. The master cylinder and other hardware in the system should be OK since they were all checked, but the advisor did tell me that there was only around 15-20% brakes remaining in the front. i noticed that my brake pedal has a little too much free play. Nate - Madison, Wisconsin 56 Ford Customline Sedan. The garage that did the work is stumped. When small air bubbles form in the brake lines, the entire system suffers as the brake pedal becomes soft. It can blitz the quarter mile and devour a road course, and you don't have be a pro driver to appreciate it. What car will I learn in? I work during the week - can I get lessons at weekends? Can you help with the Theory & Hazard Perception Test? I've not long passed my test. I bled a litre of fluid through it and initially the pedal felt fine. My brakes are very stiff, like they should be when my truck isn't running, so when I'm bleeding brakes, all is well and it seems like it'll be fine. Causes Of Brake Judder And How To Fix It Sep 15, 2016 The moment you press your foot on your brake pedal to slow your car down is when you need to feel the most confident that the parts involved in stopping your car safely and in time are working properly. i want to just. Place the key in its ignition slot and rotate three clicks forward. This guide is only for bleeding the brake lines, if you need to change the pads, visit the Front Brake Pads Replacement Guide or the Rear Brake Pads. Yes when I clamped the 2 front brake lines I then started the car, and pedal was firm as, I then clamped the rear lines started engine and pedal was not as firm. B) On the last push of the brake pedal, hold moderate pressure on the brake pedal. If a valve is stuck open it will keep sucking until the pedal goes to the floor and will only release once the engine has stopped. Even though it is 14 or 15 years old, it probably has some life left in it. Brake pedal is now firm when the car is OFF but immediately when the car is turned ON, it goes to the floor and it brakes just barely at the end of the pedal. Recently my brake pedal became very soft. Fluid boiling: When the fluid boils in the calipers, gas bubbles are formed. Brake Brake pedal feels soft (already bled the system) [Archive] - DMCTalk Forum - A DeLorean Community. I can pump the pedal and it firms up. i noticed that my brake pedal has a little too much free play. The master cylinder is full, and I have never added fluid. Only use half at most of the pedal travel to pump up and bleed (sit your other foot under the pedal so it can't go to the floor), you've probably seen the crap and buildup in a reservoir, now think about it sitting in the bore and a rubber seal running over it a few times where the piston seal normally doesn't go. There is no fluid loss, the brake pedal will firm up when pumped with no engine running, then as expected goes down with engine running, but seems to go too far and will not firm up when pumped. If brake fluid is spilled onto a painted or plastic surface, immediately wash it with water. If you only use your brakes to do this you will generate a lot of heat in them as they’re designed to work for several hundred metres at a time, maximum. After a rear brake pipe split I replaced it which I thought would cure my no brakes problem. A) With the engine not running, press and depress the brake pedal several times to remove any vacuum from inside the booster. - dacre : Very occasionally when braking, the pedal would go down to the floor with no braking. Endless fluid did not leave my brake pedal feeling spongy at all after a track day. What are those things in the title? Brake fluid is categorized as one of those three ratings. Here's a quick guide to diagnose and repair your soft brake pedal and keep your ride and your loved ones safe. My mom was coming over a bump the other day and when she got to the top she hit her brakes and they went out she could still use them but she would have to crush them always down the master cylinder was replaced and bled where's new brake fluid and now it gets hard when it's off but when you start it new releases it becomes spongy again the rotors are a little worn but I'm not sure if that. An automobile’s brake system has a soft, spongy pedal. Re: Can you push your your brake pedal to floor. So this week I got underneath and checked it out. When I pump the brakes without the engine running the pedal feels good and barely goes down. Then I start the car, and with the motor running, the pedal turns to mush and I can push it to the floor. Anyway the brakes work fine but are spongy as in the pedal travels further before it bites. Clamped off both front lines, had good hard pedal. BIG JOHN the pedal at a stop with the engine running to how hard. With the car running your power brakes are functioning and you have power assistance thus making your problem easier to duplicate. Our Project ’63 now has a set of snazzy four-wheel disc brakes, now we need some reliable pedal pressure to make it all happen. Soft or spongy brakes can be frightening, but you can usually correct the problem without too much hassle. Tech B checks for a scored or gouged brake rotor. The brake light switch serves two major functions. She hopped in and stepped on the brake pedal before the van backed into the street. If the pedal is then quickly pumped, the pedal rises and becomes firm. Since gasses are compressible, the brake pedal becomes soft and "mushy" and pedal travel increases. Check the vehicle to ensure it is in park, or P gear, and that the emergency brake is activated. Video: 3 Noises Your Brakes Should Not Make If you start to hear unusual sounds, get your car to a trusted mechanic. No Pedal with New Master Cylinder Installation - Quick Fix or Check? See more from Wagner A "no brake pedal" condition can be encountered after a new master cylinder is installed, leading the technician to believe that the master cylinder is defective. Mine effects pedal position at 2 different levels, not just soft brakes, but a failure of the ABS valve system. The soft brakes are apparently normal as he said. Yes when I clamped the 2 front brake lines I then started the car, and pedal was firm as, I then clamped the rear lines started engine and pedal was not as firm. I'm no expert but if your pads are worn, maybe that could give you a soft pedal. If your master cylinder is going bad, you’ll likely feel a spongy pedal when you apply the brakes, or the pedal will drop to the floor while holding the car at a complete stop. It doesn't lose pressure or have increased pedal travel this way, the only thing is of course it lacks power assist this way. Tech B checks the brake operation of the brake caliper piston. But when I hold my foot on the brake with the engine running the pedal sinks down. Soft brakes after installing a new master cylinder I just put in a brand new master cylinder today and bled out all the lines. Tried bleeding the system like 3 times and still a soft pedal. Use of DOT 4 or 5. I'm aware that there is probably air in the system somewhere, but I've bled through a significant amount of fluid with no bubbles coming out. With engine running, brake pedal goes to floor. The rev limiter popped at 1,800 rpm, the lights dropped, and as the lights came down the brake pedal disengaged. You're so familiar with it, in fact, that you can probably tell if something's different. and try to bleed the system again maybe there is some air trapped in the system. assist which makes it a little easier to push the air out, atleast makes it easier to feel in the pedal. About a week later and they are right back to where they were, very spongy and I can get the pedal down to the floor just about when the car is running, but not when its off. 1) There are several others running EMPI disc brakes that didn't mention anything about having a spongy feel to the pedal. With engine running, brake pedal goes to floor. My brakes are very stiff, like they should be when my truck isn't running, so when I'm bleeding brakes, all is well and it seems like it'll be fine. this is a common problem according to my research with ford edges. Master cylinder and power booster have been replaced, problem still exists. I bled the brakes and found bubbles in the two front calipers (the two rears were fine). But if anything is keeping a brake pad or caliper piston from moving closer to the brake disc when the brake pedal is applied, the pedal will have to move a little farther than normal each time. This is because air is much more compressible than the brake fluid. If you step on the pedal and feel a vibration, you're in for some troubleshooting. Ive only owned it a little over a year but as long as Ive had it the brakes have been very soft, I have to push the pedal nearly to the floor for anything to happen. Finally getting the car back up and running and this is the last thing holding it back from driving. A couple of weeks ago I started getting a soft brake pedal, followed shortly by the "ABS" and "Brake" lights coming on. A brake pedal that feels mushy, spongy, or that slowly sinks to the floor when depressed can be best described as brake pedal sink. Pedal still soft, so more bleeding, a few bubbles but nothing major air wise, pedal better but still spongy for first half of travel! Also tried the pedal with the engine running, and i noticed when i released the pedal, the engine revs go up slightly and then drop, never noticed that before, coincidence or yet another problem?. We offer a 3 Day Exchange on qualifying vehicles! Why shop anywhere else? Our dealership specializes in providing you with the best used cars, trucks, and SUVs in the tri state area. the only way to get a soft pedal again (and there fore brakes) is to rev the engine. Bled entire system. A brake pedal that feels mushy, spongy, or that slowly sinks to the floor when depressed can be best described as brake pedal sink. Soft or spongy brakes can be frightening, but you can usually correct the problem without too much hassle. We had to choose the right package for our asphalt project car. If brake fluid is spilled onto a painted or plastic surface, immediately wash it with water. If the pedal goes to the floor then you have a hydraulic leak in the brake system, this can be confirmed by checking the brake fluid, if its significantly low or empty I'd look for a fluid leak. The brake system uses hydraulic pressure and if there's a leak somewhere in that system, your pedal will feel soft. Hi all, I have just replaced the front pads on my 2010 XF 3. I have a 1997 Dodge Ram 1500 2wd that I've owned since new. Brake pedal is spongy Inspection Service When you press your brake pedal, it should feel firm and solid. Why two pushes of the pedal? What am I missing? Don't worry I've only driven 12 ft back-and-forth in the driveway, roads in Wisconsin are still safe. There are lots of things which can cause the pedal to vibrate when you apply the brakes. Yesterday I drove the car and it had the symptoms of air in the brake system - the pedal would go soft and if I pumped the brakes, it came back up. There is no fluid loss, the brake pedal will firm up when pumped with no engine running, then as expected goes down with engine running, but seems to go too far and will not firm up when pumped. The stock tires hooked and the car thrust forward, hurtling the GT500 toward the. The service tech said he had never heard a car make that noise before, but in the end they came back and said it was normal. Sometimes the soft brake pedal is the beginning stage of a failure in the brake system which could end with having no brakes at all! The noise you hear could be related to whatever is causing the brake pedal to feel soft such as stuck brake pads, or it could be that something got moved while installing the winter tires, such as the backing. fordproblem November 7, 2014 0 Comments If you are driving a 2013 Ford F-150 , or if you are planning to purchase one, then it is important that you review reported Service Brakes problems and defects. Thought it was a good number until I did it with my 02 Lexus GS300 and did about 2. There are two primary mechanisms of friction at work during the stop: 1) adherent friction and 2) abrasive friction. Soft or spongy brakes can be frightening, but you can usually correct the problem without too much hassle. The brakes have not been right since I bought it this summer. Troubleshooting Your Brakes Spongy Pedal: 1) Air in system. Long Brake Pedal Travel vs Soft Brakes I have been trying to track down a brake issue since I bought my 2000 4runner limited. The pedal is stiff when the car isn't running, but once I start it and press the brake the pedal drops to the floor. Use of DOT 4 or 5. Swapping to larger front discs will greatly improve the stopping ability. I don't know any other reason for spongy brake pedal, other than air in the lines. I was going to start replacing all the calipers, rotors and pads but though I might be able to find some upgraded parts form newer years. If you have a 'long' brake pedal rather than a slightly spongy feel, this will do nothing to help you. then with brake applied,start engine. Do yourself a good turn and bleed the short distances first, then the longer distances last. 2 days ago · The brake pedal has a rather soft feel but the brakes bite early and with authority. After driving over a short section of rough pavement the brake pedal was soft later making stopping difficult, and nearly running a stop sign. 89 A/T Westy. We offer a 3 Day Exchange on qualifying vehicles! Why shop anywhere else? Our dealership specializes in providing you with the best used cars, trucks, and SUVs in the tri state area. get in the car 'dont' start the engine and press the brake pedal several times, on off 5 or 6 times you should find the pedal becomes firm and hard to press, ie normal. If brake fluid is spilled onto a painted or plastic surface, immediately wash it with water. It's good to know that even the great ETCG gets stumped some times. Run pump at fast idle. There are lots of things which can cause the pedal to vibrate when you apply the brakes. If the pedal goes to the floor then you have a hydraulic leak in the brake system, this can be confirmed by checking the brake fluid, if its significantly low or empty I'd look for a fluid leak. Much like a system that has air in the lines, you may be able to get the brake pedal height to rise slightly by pumping the brakes. Squishy brakes? Here's why | Get the latest car news, car reviews, auto. Don’t push like you are panic stopping, but simply hold pressure like you are sitting at a red light. I'm no expert but if your pads are worn, maybe that could give you a soft pedal. ASE: A5 Brakes (Test 1) STUDY. If I pumped the brakes a few times while stopping (to build pressure) it felt normal. You can easily inspect for a leak by looking under the vehicle. A brake pedal that feels mushy, spongy, or that slowly sinks to the floor when depressed can be best described as brake pedal sink. Brake pedal goes to the floor, won't build pressure By 01 S-10 , May 8, 2011 in Suspension and Brakes (4x4, street drops) - Lift it, Drop it. ABS control unit was replaced at a cost of over $2000. The service tech said he had never heard a car make that noise before, but in the end they came back and said it was normal. When knock-back occurs, the master cylinder has to push the caliper piston out farther than usual, which results not only in a spongy brake pedal but a longer than usual stroke.