Brake Pedal Soft

Spongy, mushy and squishy are just a few of the terms that a customer might use to describe negative brake pedal feedback. The garage that did the work is stumped. I'd ask the Jag dealer to demonstrate on an equal car > that this is characteristic of the model. If you are running the engine, you should not see that to happen. brake application. Low / Spongy brake pedal. After Abs Engaged The Brake Pedal Is Now Very Soft And Requires That The Pedal To Be Pushed Completely To To Floor. Agree with both the above replies. The bad news, the brake pedal almost goes to the floor. I have a 2009 Corolla S, and i find the brake pedal is "soft". During replacing new brake oil I took special care not to let the brake fluid reservoir bottle empty so that it may not damage the master cylinder. Tue Mar 19, 2013 5:34 pm so as some of you may know, i recently did all new brake lines in my '95 rmw front to back and side to side. The brake booster generally doesn't cause a "spongy" pedal and when the engine is started the pedal will drop 1/4"-1/2" because of the assist from the booster. This is an '08 Ford Escape V6 with about 135k miles on it. When I apply my brakes normally or hard, my brakes operate perfectly But when I apply the brakes slowly (i. The overwhelming reason for a soft brake pedal is a system that needs to be bled. MAINTENANCE : Bleeding the Brakes on a Jeep JK Wrangler Failure to do so will result in poor to non-existent braking due to air bubbles that can get trapped inside your brake lines. Continue with the front right wheel. 0 person(s. Clamped both rear brake lines but one clamp popped off when fitting the new caliper so guessing abit of air got in the system. The brake pedal is the driver’s physical connection to the brake system, providing feedback that the driver uses to determine if there’s a problem with his brakes. SPONGY OR SOFT BRAKE PEDAL This is usually caused by air in the brake system, either as a result of improper bleeding, fluid loss or a very low fluid level. When i got it back, the brake pedal was spongy with excessive pedal travel before brakes start working. Including products for Camaro, Firebird, Chevelle, Impala, Street Rods, G-Body, Nova and more!. Since I had a credit from some earlier work at a local garage, I'd let them handle it. Best to use a power brake bleeder. Get a new Pedal Kit now!. Then, the pedal falls away another inch or so. But the brakes may need to be adjusted, or the lines bled to remove air. The brake pedal feels fine and the car stops perfectly. Spongy when running. I have just finished swapping my rear drums to disks on my EG sedan (DC2 Front and Rear). I usually fix this issue with pumping the brakes. REPLACE BAD HOSES Inspect ALL power steering hoses. For example, if 50% pedal travel gives threshold braking at 75 mph, then no matter how big or little your booster is, you will still only ever be able to threshold brake at the same 50% travel. Anything that increases movement, even slightly, will result in a lower brake pedal. Soft or spongy brakes can be frightening, but you can usually correct the problem without too much hassle. approaching a stop sign), the pedal will very slowly start sinking all the way to the floor; however, a simple lift of the foot and re-application will stop the car as it typically. If the brake pedal does not return properly, check the pedal to be sure it is operating freely. May be an issue with a caliper. Hard and Soft Brake Pedal Diagnosis. 7 vortech,vin code r. There are some causes for this. soft brake pedal The jeep sat for about 3 weeks (long story) until I finished everything. Air in the brake line(s) is the most common cause of a soft brake pedal. Then I changed the master cylinder and bled at least 2 times on all 4. Not enough to prevent power brakes under normal stops, but on above normal braking, no power brakes. not enough that "nabibigatan" yung car (it can still coast. 2017-18 MDX Sport Hybrid ALL Check the iN VIN status for eligibility. That results in a spongy feel at the brake pedal. Brake Maintenance: 5 Warning Signs. The most likely cause of a spongy brake pedal is old or contaminated brake fluid. I am having issues with my the brake pedal on my '08 2dr civic Si. Not enough to prevent power brakes under normal stops, but on above normal braking, no power brakes. Jeep Parts, Jeep Soft Tops, Jeep Accessories, Jeep CJ Parts, Jeep Cherokee Parts. And worse, I had the same soft pedal after having a shop do a flush. If air gets into the brake lines, it can prevent brake fluid from flowing properly, causing the brake pedal to feel spongy or soft. A half an hour and 2 pints of brake fluid, I used synthetic, and you will loose a hugh portion of the soft pedal. Forum rules When you put a new thread up in the Workshop please put your car's year and model in the thread title, along with just a brief indicator of the problem. (Page 1 of 2). Obviously you wil. The brakes just don't feel right. My brake pedal as been pretty soft for the past few months now. I have bled all four wheels and got some air out of only one wheel, which was the one that had most wear on brake pads. Air in the brake lines could be due to a leak or low brake fluid. 0 person(s) were injured. if anyone could give me any advice i would be. The car brakes, that's not the point. If pumping the pedal makes the car stop when the pedal’s higher up, either a brake adjustment is in order or you need more brake fluid. When staionary, the pedal can easily be pressed down to the floor. Car has been sitting for at least a year and has only 50k mi. Anyway the brakes work fine but are spongy as in the pedal travels further before it bites. Maybe it isn't a problem, not sure. A process called “bleeding the brakes” gets rid of the air. How did you bleed the brakes? We don't care about your friend's CRV. A sinking brake pedal always used to be a master cylinder problem in days gone by but after the initial garage changed the brake fluid, master cylinder and bled everything with no improvements, two Peugeot dealerships have since checked the car and told me it's perfectly normal for the brake pedal to do this. The brake pedal may have a soft feeling or travel to the floor with low effort because of air bubbles in the brake fluid. The bottom line is this. ive racked my brain on what it could be since i had no prier problems. Especially on diesel powered cars. I have just changed my front pads and discs, bled the entire system, and the brakes still feel like crap, very spongy and you have to really press down hard if you want to stop quickly, they do work if you press down hard, but feel sloppy. You're driving along and notice your brake pedal seems soft. You MUST have the the correct pedal ratio for the system to work correct. EricTheCarGuy 480,743 views. The more force a driver applies to the brake pedal, the greater the stopping force that is applied at the wheels. Since then, they still are "spongy" but firmed up some. Now it's almost at half pedal when the brakes start to grab. I am running the 7/8" master cylinder and proportioning valve is wide open to the rears right now. So you have bled all the air out of the brake system and you have done all you can to eliminate that spongy pedal and it's still there and driving you nuts. If I plug the rear and just run the front, the pedal goes to the. need to press pedal all the way down. If the pedal feels "soft" or "spongy" instead of firm, there's probably air in the system. Contaminants in your brake fluid may cause your brakes to function incorrectly. If your pedal goes to the floor, you have a problem. the rear was bled. A “soft,†or “spongy,†brake pedal describes a situation when the brake pedal does not have that firmness. I know about all of the TSBs on the Flex regarding brakes and that's why in my post I mention that I have already replaced the components in question. The most common reason for a soft brake pedal is simply air still in the system. I had a 2008 Element with exactly the same problem. I replaced the master cylinder thinking it was the issues. Keyword Research: People who searched spongy brake pedal also searched. I have a soft brake pedal on our 1998 Excel. Does the pedal feel spongy or is the pedal travel too far when pushed? What does the pedal feel like when the truck isn't running?. EricTheCarGuy 480,743 views. What we want to do is to reconfigure the active range of the pedal to. The brake pedal may have a soft feeling or travel to the floor with low effort because of air bubbles in the brake fluid. This will cause your soft pedal. As I stop the pedal will continue down toward the floor, to a levelbelow the accelerator pedal. Wrinse , repeat. it gets a bit ridged right before it meets the floor. I have bled all four wheels and got some air out of only one wheel, which was the one that had most wear on brake pads. Soft brakes after installing a new master cylinder The pedal is a good bit softer than it was before the new master cylinder. When the brake pedal feels soft, you might be able to build up brake pressure by repeatedly pumping it, however, this is only an 'emergency' measure to stop the car once - it is not a 'get you home' solution. on my particular car 2010 zetec fiesta manual the fix was to take it to the ford dealer and have them use the diagn. Since the brake fluid is cannot be compress, the brake pedal feels solid. Hyundai issued two recalls affecting 889,000 Sonatas due to brake problems. 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. So today i check for leaks because the master cylinder was a little low. I bled them this way rear pass , front driver then rear driver and front passenger last. (Booster was filled with rusty old fluid) After bleeding three times, once with a pressure bleeder and twice manually, the brake pedal sti. Brake booster was replaced under warranty. My brake pedal started to feel very soft and would sink to the floor when I tried to stop so I brought it to the shop and they said it was the master cylinder. Brake Fluid Leaks: Worn, damaged or rusted components. Doesn't appear to creep at all. "When you're not the biggest, you try harder". Then I would look for leaks around each piston or bulges in the rubber brake lines. brake application. We carry more Harley-Davidson products than any other aftermarket vendor and have them all at the lowest guaranteed prices. 5 yrs old) stock front brakes with fresh pads and rotors disk brake rear with fresh pads and rotors No rubber brake lines, all braided or hardlines Thanks for the help in advance. Rear drum wheel cylinders that are too large will give a poor pedal. So you have bled all the air out of the brake system and you have done all you can to eliminate that spongy pedal and it's still there and driving you nuts. need to press pedal all the way down. Spongy brakes are a result of air getting into the brake system, which can happen from leaks in the. The reason why I do not think it would be a brake booster is that when they fail the pedal gets hard, not soft, because you now lack the power assist of the booster and have to depress the pedal entirely with your own strength. but now my brakes are spongy and I can hear air. Please read part one before continuing with this article. 6LX 51 plate) TIA. No previous brake issues. Since then, they still are "spongy" but firmed up some. I did notice that the pedal is stiff when the car is off, but once I turn it on the pedal goes to the floor. Then, the pedal falls away another inch or so. If the level is full or close to full that would probably be a symptom fluid leaking past the seals in your master cylinder. If your brake pedal pushes down further than normal to activate the brakes, it may be a sign of contaminated fluid. The pedal going right to the floor would be very unlikely with a failing, or blown, booster. Obviously you wil. Make sure when pushing on the brakes you look at the rear caliper pistons and make sure they are not travelling excessively. I rolled out. a spongy brake pedal is caused by air in the system. After Abs Engaged The Brake Pedal Is Now Very Soft And Requires That The Pedal To Be Pushed Completely To To Floor. This is a follow-up to a previous question about a soft brake pedal. If the pedal feels "soft" or "spongy" instead of firm, there's probably air in the system. The easiest way to diagnose this problem is to pump the brake pedal gently a few times. If any one hose is bad the others are likely to also be ready to fail. Most domestic car manufacturers do this. when we dropped off the car the brakes were working fine. Master Power Brakes recommends that the distance between the pin from the booster and the hole in your master cylinder be approximately 0. (Page 1 of 2). brake fluid is hydroscopic. EricTheCarGuy 480,743 views. The brakes on the Girfriends TDi Ambiente seem a bit soft to me. With the engine off, the pedal comes up solid and I can't get it to the floor even with both feet and a hernia. That's normal. Moisture in the fluid will not substantially change the pedal feel until the fluid temperature exceeds the boiling point of any water in the fluid, then the pedal feel gets very soft. Star the engine and perform the same test and the pedal creeps all the way to the floor in around 7 seconds. A brake pedal that feels mushy, spongy, or that slowly sinks to the floor when depressed can be best described as brake pedal sink. The road outside of my daughter’s dance class is very steep. Last week, they replaced both front calipers. If still have a soft pedal, I will check level of fluid. Last week, my brake pedal gradually got soft and I had to push the brake pedal farther to the floor to stop. 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. An interesting detail is that while driving at first and while on the highway for a while, the brakes feel like normal. soft brake peddle Had the same problem soft brake peddle until I moved the peddles off the there bottom setting. 2] i want to share just a little adjustment to work around the stupid rubber piece on the brake pedal. Like the penguin stated, worn pads aren't the cause of 'long pedal travel' since the brake calipers (are supposed to) adjust to make up the difference. Could it be my brake master or booster going bad? a bad master cylinder would make a soft pedal. But unless the adjusters are cleaned or replaced the problem will return as the linings continue to wear. Low brake pedal GM Fix a Low brake pedal GM – C027B GM vehicles. Symptoms of air bubbles trapped in your braking system include an excessively soft brake pedal or a pedal that goes clear to the floor without any resistance. A brake pedal that is lower than normal is annoying and dangerous. Print See Figures 1, 2 and 3. It was not quite as firm as before but i did not take it back as it was not all that bad. In doing so, the pedal should become firmer with each gentle press of the pedal. Spongy brakes is always caused by air in the brake lines, but there can be several different causes for this. but now my brakes are spongy and I can hear air. Wrinse , repeat. I just did the front brake and the rear are pretty new. Your definitive guide to Hissing noise when brake pedal is depressed Inspection. Brakes were too soft, so tonight I did all of them again (using two people), RightRear, LR, RF, LF. Turned out it was that the rear brakes were further out of adjustment than I had thought, and it took a few days of baking up and hitting the brakes hard to get them back into adjustment, now obviously since yours wasn't taken apart before the soft pedal it wasnt exactly the same thing, but I am wondering if perhaps your self adjusters might be. Brake booster was replaced under warranty. I'm having a spongy brake pedal on my truck since december. My 2010 Tundra DC 40k miles, Brakes are spongy. I let my woman drive the truck over the weekend and this morning the brake pedal feel was very stiff. I took it for a spin and sure enough it was soft so I assumed I must've boiled the fluid and introduced air bubbles or not tightened a bleeder tight enough. Contaminants in your brake fluid may cause your brakes to function incorrectly. If you encounter a low brake pedal or one that sinks to the floor and you’ve either done a repair or had a repair done lately where the master cylinder has been moved, the problem may be as simple as a missing O-ring. But, my B6 purchased exactly three weeks ago has had a soft brake pedal since day one. 1997 - 2003 Ford F150 - Spongy Brake pedal resolved - I have a 1999 F-150 ext cab 4x4, I have had a low spongy brake pedal for years. This can be caused by many different things. May be an issue with a caliper. I have been a member for a while but this is my first posting. "When you're not the biggest, you try harder". The overwhelming reason for a soft brake pedal is a system that needs to be bled. Fear not, after some frustration, trial. When you start your vehicle a normal functioning system pedal will drop some, and pedal will have a softer feel than pushing on pedal with engine off. The reason why I do not think it would be a brake booster is that when they fail the pedal gets hard, not soft, because you now lack the power assist of the booster and have to depress the pedal entirely with your own strength. To do this, we display ads from. Brake fade caused by overheating brake fluid (often called Pedal Fade) can also be reduced through the use of thermal barriers that are placed between the brake pad and the brake caliper piston, these reduce the transfer of heat from the pad to the caliper and in turn hydraulic brake fluid. Automotive Test: By: Ashley, Kerwin, Selena, John, Breighanna, Jabari, Demetrius 1. Hard and Soft Brake Pedal Diagnosis. But at the first stop sign you draw a startled breath--the. bleed the brakes using the scanner. 2017-18 MDX Sport Hybrid ALL Check the iN VIN status for eligibility. com offers the lowest price and fast delivery for genuine 1991 Pontiac Sunbird Brake Pedal & Master Cylinder Mounting. 0 person(s) died. Page 1 of 2 - need help on 1998 chevy tahoe brakes - posted in Just plain ol B. The problem was gone for a short while and then came back. replaced the rear pads on my 03 slk320. Air in the brake line(s) is the most common cause of a soft brake pedal. When I redid my brakes, I couldnt get the bleed quite right, and it gave the pedal a soft feel. The brakes should start applying after you press down about an inch on the brake pedal A hard or soft amount of pressure applied to the brake pedal is usually determined by the compound of the brake pads. Once done, my pedal was noticably harder. Brake pedal is spongy. I've replaced the master cylinder, brake booster, all 4 pads and rotors, bled the brakes more times than I can count, ABS bleed at least 10 times. what is happening is the pistons are going too far back at rest so the first press of the brake pedal primes it and the pistons dont go all the way back to resting when you press the pedal again and get full braking power. I replaced two front calipers after the bleeder screws seized in them and broke off and I bled the entire system with about a 1/2 gallon of dot 3. Ive tried bleeding 3 times now!. From your description there's clearly something wrong with the braking system. Will the pedal go all the way to. The brake pedal should return to its normal position (step 2). The cure is to bleed all. Ok, let`s try a master cylinder. For the second time, I have made a formerly soft brake pedal firm in a 740 by doing a front brake pad job and in the process, freeing up frozen caliper slide pins. car makers use twin diaphragm boosters. brake application. A “soft,†or “spongy,†brake pedal describes a situation when the brake pedal does not have that firmness. went to the workshop mech there told me was the master cylinder problem. when we dropped off the car the brakes were working fine. If measurements are the same, go to step 5. Brake pedal goes to floor after sitting. Besides the leaky caliper, what is common is the rear calipers will not stay out against the pads. I expected the brake pedal to sit higher, more like it was when the car was new. Let gravity do. The fix for this is to bleed the brakes. Soft Brake Pedal VW MKIV-A4 TDIs (VE and PD) I had a similar issue and the plastic vacuum line was cracked. permalink While under warranty I took it to the dealer I purchased from, a Ford dealer, they deamed it to be normal operation and claimed to have driven a 2008 and 2009 on the lot and felt same braking. It almost feels like you're stepping on a sponge. Tests to find causes of a low brake pedal. I have bled all four wheels and got some air out of only one wheel, which was the one that had most wear on brake pads. low spongy brake pedal: Sign In 2002 Ford Ranger 4wd 4. Some of the most common mistakes made by technicians when performing this type of diagnosis are:. 3/16 line all around with one 2lb residual valve on the front circuit and one for the rear. I assume this isnt the problem, as i am sure it is the first thing you checked. MAINTENANCE : Bleeding the Brakes on a Jeep JK Wrangler Failure to do so will result in poor to non-existent braking due to air bubbles that can get trapped inside your brake lines. • If the brake pedal is pushed hard, the noise is less likely to occur. Ok here we go the front axle has been completely rebuilt new everything rear main line and lines to wheel cylinders are new, new master cylinder it was bench bled then put on the truck and we bled the brakes at all four corners starting with the farthest from the master cylinder. After you’ve successfully bled your brake system, does your pedal continue to feel spongy or are you still not getting the performance you need out of your brakes?One of the first things you can check is the integrity of your booster and master cylinder. When i got it back i noticed a difference in the brake pedal. The booster will never cause a low or soft brake pedal, check for air or other hydraulic problems. Step 2 – Bleed brakes. that is the correct new process by Polaris. February 2017 QX50 BRAKES UPDATE: After returning the new QX50 to the Infiniti dealership, waiting for an hour for a mechanic to test drive the car, and being told that "the brakes are normal", I continued to have a soft brake pedal that was low the first time pushed, but firmed up after the first try. I'm wondering if the brakes need to be bled or do I have a master cylinder problem. Air in any of these lines can throw off this balance of pressure. However longtime drivers of the EX and Ranger are familiar with the normally soft pedal of the beast. Now it's almost at half pedal when the brakes start to grab. Moisture in the fluid will not substantially change the pedal feel until the fluid temperature exceeds the boiling point of any water in the fluid, then the pedal feel gets very soft. 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. If your boost is huge, you get a soft pedal that still locks the brakes at 50%. Brakes still super soft, found that if I stop on a hill and keep the pedal at the same spot as when I stopped, the brakes will quickly release and let the car roll again unless I push the pedal down another 1/2"! This is going to put me in a hospital, either from stress or from when the brakes finally fail. Spongy, soft brake pedal. Air in the brake line(s) Air in the brake line(s) is the most common cause of a soft/spongy brake pedal. This will cause your soft pedal. To avoid this problem, inspect your brakes regularly. Correct, there was a TSB for soft brakes - but not this issue I am posting about. The NHTSA. Correct any sticking or binding as necessary. In doing so, the pedal should become firmer with each gentle press of the pedal. Brake pedal is spongy. But, my B6 purchased exactly three weeks ago has had a soft brake pedal since day one. Soft brakes after installing a new master cylinder The pedal is a good bit softer than it was before the new master cylinder. On a brake system that does not have a power assist, the brake pedal is directly connected to the master cylinder. Joel, the brake light works as it should - comes on when the e-brake is pulled up, but is off otherwise. The brakes worked perfectly up until that point. When the engine is off, the brake pedal will pump to hard as a rock. A brake pedal that feels mushy, spongy, or that slowly sinks to the floor when depressed can be best described as brake pedal sink. In other words: a soft brake pedal. Please read part one before continuing with this article. Here's the scoop. I'm wondering if the brakes need to be bled or do I have a master cylinder problem. Anyways, it always had a soft brake pedal and 3 years on, its still the same. Directory of vehicles that match the Brake Pedal we have on stock. Correct, there was a TSB for soft brakes - but not this issue I am posting about. The pedal firmed up for about a week and now it's back to having to push it almost all the way down to get the truck to stop. General Brake Booster Installation Instructions Page 4 IF BOOSTER IS NOT OPERATING (GIVING A VERY HARD PEDAL) 1. Worn Brake Pads: Your brakes should never wear low enough to cause your brake pedal to feel low, they'll scream at you before then. Curing a soft brake pedal on a Jeep Cherokee. 2003 XC70 spongy brake mystery. The "spongy brakes" were actually mentioned in a review: "If there's a sore point in the drive, it's in braking. This is why when you start the engine the pedal becomes softer or spongy. took it around the block, slammed on the brakes a few times and managed to get them to lock up a bit (trying to clear air from the ABS). Damaged brake line(s). The brake pedal feels fine and the car stops perfectly. Air trapped in the lines, calipers or wheel cylinders will make the pedal feel soft and spongy. Correct any sticking or binding as necessary. The rear brakes have been adjusted to the point the hand brake lever bareley makes it to the first click. the rear was bled. Something is obviously wrong, and you need to find out the cause. Prior to this, the brake pedal was reliably firm and even. The action of the pedal dropping when the engine is started is exactly what should happen as the brake servo kicks in and assists your leg muscles to apply more force to the brakes. Have soft brake pedal, the car brakes but I have to push the pedal down hard. The TRUTH about OFF & Toothpaste vs Headlights! (+Update on WD 40) - Duration: 9:35. View Notes - Automotive Test:. If pumping the pedal makes the car stop when the pedal’s higher up, either a brake adjustment is in order or you need more brake fluid. A brake pedal that feels mushy, spongy, or that slowly sinks to the floor when depressed can be best described as brake pedal sink. I've tried the following: Old fashioned 2-person bleed; Performed 4-5 hard stops (40 - 0) pushing on brake pedal as hard as I could. When stopped, say at a light, the pedal. 2010 goldwing soft rear brake pedal. From: Message: Bucket GenII 4/09/2007 11:21:04: Subject: Soft Brake Pedal IP: Logged Message: Ever since i switched from rear drums to rear disk, my brakes have been worse,you can mash the pedal down and it still creeps to a stop,so i figured maybe i got air in the line so i bled it out several times,checked everything out,all appears normal, but it still doesnt stop so well,so i took it to a. 0 person(s) died. If the brakes are soft or spongy, this is a good time to change or flush the brake fluid. Brake fade caused by overheating brake fluid (often called Pedal Fade) can also be reduced through the use of thermal barriers that are placed between the brake pad and the brake caliper piston, these reduce the transfer of heat from the pad to the caliper and in turn hydraulic brake fluid. Got the car back today. A failing brake booster will not pressurize the brake fluid and cause the pedal to hit the floor, making the car hard to stop. off brake pedal push rod to master cyl length now i have about 1 1/2 in play,pulled out splash guard to make air scoop,no. Since the brake job, I've been getting a squeak from the brake pedal and the pedal action is poor. Happy newyear brothers and sisters Im having trouble with my 2004 buick Rendezvous 3. Brake fluid absorbs water if exposed, so the systems are to remain sealed. can push brake pedal to the floor and hear high pitched whistle while the pedal slowly recovers. But if they do get very low, you might have this problem. com about brake booster. Then I had my helper pump the pedal while bleeding and it improved. Where as mine have very little travel then you go through the windscreen, hers have quite a lot of travel, work but arent as brutal as mine. It felt to me like the primary hydraulic circuit (For lack of a better word) was bleeding through and the secondary was still properly holding pressure because, although the pedal bleeds through and almost hits the floor, I can still get stopped. Once done, my pedal was noticably harder. When I picked up the car in March last year, I was dissapointed in the feel of the soft brake pedal. I think there's something in the news to think about even if you don't own one of those bikes. This is why when you start the engine the pedal becomes softer or spongy. Mine effects pedal position at 2 different levels, not just soft brakes, but a failure of the ABS valve system. I was able to remove the vacuum line from the Brake Booster and I performed the definitive test. The problem was permanent. Air, of course, can't be compressed in a brake system, so the pedal will continue to feel spongy until you get it out. :mad: I'm on hold with BMW NA will know more later. Started having very soft pedalwent almost clear to the floor & took pumping to feel halfway safe to stop. Diesel engine trucks and some heavy duty gasoline trucks are equipped with the Bendix Hydro-boost system. I took it for a ride and the pedal felt the same. I'm wondering if the brakes need to be bled or do I have a master cylinder problem. If still have a soft pedal, I will check level of fluid. Select Your Vehicle. Prior to this, the brake pedal was reliably firm and even. I have changed Pads, Shoes, Master Cylinder, Booster, RABS Valve and everything else in between. When I redid my brakes, I couldnt get the bleed quite right, and it gave the pedal a soft feel. I bled them this way rear pass , front driver then rear driver and front passenger last. After doing the pads and bleeding the entire brake system (including the RABS valve) TWICE, I still have a spongy brake pedal. A pushrod attached to the brake pedal provides the pressure to the incompressible brake fluid, with operates braking mechanisms in the wheels to slow or stop the car. Brake and Front End Magazine wrote: SELLING SERVICES-----Bleeding ABS Brakes After Component Replacement By Larry Carley Bleeding the brakes after brake components have been replaced is a step you don't want to skip if you want a firm brake pedal. The Frontier may have the reassurance of vented disc brakes with the full set of ABS/EBD/BA at every wheel (every competitor lacks rear discs) but the sponge-like pedal doesn't do the best job of conveying it to your foot. Air in the brake system can make your brake pedal feel spongy and vague. Joel, the brake light works as it should - comes on when the e-brake is pulled up, but is off otherwise.