I have a 79 f150. I changed two brake lines and master cylinder and bleed,and more bleed,but still very soft all most to floor? wheel cylinders look good.
View 2 RepliesWhy the brake lines have 2 or 3 coils in them near the master cylinder? Makes it a real pain to work on anything down in that area. Always snags ratchets and stuff...
My brother and I were discussing it the other nite, and the conclusion we came up with was, the first guy ever who was installing a brake system had tubing that was a couple feet too long, and couldn't find a tubing cutter, so he coiled them up.
Then the next guy saw that and figured "hmm, so THAT'S how it's done", and so on... Kinda like the story about the lady who always cut off both ends of her ham before she put it in the broiler..
I was wondering if there was how to on doing the MC replacement? The brake pedal goes to the floor almost every time you press on the brake?
View 1 Replies1987 F-350 460 Auto Trans. Brake Pedal slowly going to the floor. Stopped at a red light yesterday on a slight down hill and I noticed the brake pedal slowly going to the floor. I had to put the truck in Park to avoid bumping into the car in front of me. I checked brake fluid level and still at the full level, check rims for brake fluid leak from brake cylinder, none. Could my master cyclinder need rebuilding or is my vacume diaphragm going. Not sure thats what its called.
View 14 RepliesI replaced the master cylinder 2 months ago and now every now and then the rear lock up for a second. its only happened a couple of times. Pulled the wheels and everything is in place with nominal wear with clean drums and rotors. Am at a loss as to why this is happening.
View 1 Replies2001 F-350 / 7.3L / 147K ... What are some symptoms of the master cylinder going out? And is there a such thing as a rebuild kit anymore? The pedal has been getting spongier & spongier over the past months. Truck still stops O.K. but you have to brake earlier than I used to. Pedal can go almost to the floor. Pedal continues to go to floor as pressure is applied. Does not go to floor though.
View 4 RepliesLost braking power. Replaced master cylinder. Brakes went soft again. Shop says it is something to do with the ABS Control Unit (?). Took it to dealer who said it is a leaking master cylinder. Back to shop which claims nothing wrong with new master cylinder and it i the ABS blah blah. Dealer says it can't be ABS. Went to another shop. Replaced master cylinder again. Brakes still soft. No one can figure this out and I am stuck with very soft brakes.
View 5 RepliesWhich line goes to front brakes and which to rear from the master cylinder?
View 1 RepliesWhat kind of brake line is it and if is replicable with regular brake line? I'm just replacing long line between front and back splitter block and just would like to know what is it. What is purpose of that braiding (?) at front brake lines and why they wind down instead of going straight. Part of that long line is braided too, part that go across frame.
View 3 RepliesI have a '53 Ford F100. I have a PB conversion kit on it. The master cylinder & Booster are under the floor. I have used this setup for many years. Recently my master cylinder went bad. I replaced it with the same model. I bench bled it, and installed it. I also added a remote fill kit, since it's difficult to check & fill. Because of the booster, the master cylinder no longer sits under the hatch in the floor.
I got everything installed & connected, then bled all 4 wheels using a bleeder kit with an electric vacuum pump. The fluid runs clear & no bubbles, but I can't get a pedal by pumping. I have no leaks. I tried with the engine off, and running. I have felt soft pedals before, but I have no pedal at all, it just goes to the floor.
I have a '79 F150 4wd and was wondering what would indicate a caliper needing replacement. I'm already going to replace everything on my rear brakes, they are completely trashed. However, the fronts seem OK, NO indications of leaks or seizing both sides of the rotors appear to be evenly "used" I guess. The inner pads do seem to be thicker than the outer pads is this normal? Anything I should be specifically looking for before I have the rotors turned and put a new set of pads on?
View 5 RepliesIs there a good way to bend brake lines without a bender? I have two brake lines to bend that are probably no longer then 3 feet and don't want to buy a bender.
View 6 RepliesI am having trouble big time getting air out of my brake lines. I put new front pads and rotors on and also had to replace the brake line coming from the caliper as it kind of crumbled and needed to replace the next line up that goes to the ABS block on the left front. After doing this, I bled that wheel only and at first it was ok until the brake line on the right front at the caliper also broke when I was pushing on the brake pedal with the truck running, spewing fluid all over. I have tried to bleed using a decent vacuum bleed setup from Advanced Auto but keep getting massive amounts of air coming out and when I start the truck and hit the brake pedal, it goes to the floor. Could the master cylinder be bad? I have checked every connection that I made and all other connections and there are no leaks at all. I am stuck in the garage! The truck is a 1999 F150 4x4 with 4 wheel ABS.
View 1 RepliesA few years ago I (for him) replaced all 4 calipers, rotors, pads, etc....things were good. Just recently he replaced his Brake Booster and Master Cylinder (not sure what led to this), but long story short everything is back together and he doesn't have brakes.
My GUESS is that the system needs a good flush, new fluid, etc....
My problem is I'm unsure how to bleed the ABS system. A few google searched indicate I need a scan tool, but is there another way? Can I jump something.
So my question, how do I completely bleed the brake system on this truck?
I have this truck (in signature below) that I have not driven for ~3 years. As I am starting to drive it I am noticing I need to put A LOT of pressure on my brake pedal to get the brakes to work. They stop the truck and the pedal doesn't feel soft as if there is air in the line but it feels as if I apply a lot of pressure and there isn't a lot of grab.
While it might be possible, I don't think I have any type of glaze or coating on my brakes that would cause this. 95% of those 3 years, the truck was inside.
I wonder if it feels as if the truck is hard to stop because of the additional power I have coming from this new motor?
Is there any type of part I can replace in the brake booster to adjust the pedal? Or brake booster. Maybe that is going bad?
I have a 2004 Ford Expedition and today on the freeway I had to step on the brakes pretty hard to avoid an accident. After pressing, the pedal resistance became really soft and the brakes worked, but were very sensitive (a lot of pedal movement to brake). I had this happen some time ago and I did a complete system flush and no problems since then, but it has to do with how hard I hit the brakes. What could be wrong????? BTW - I never noticed the anti-lock brake pedal pulse at all during this event. I'm not even sure it is working at this point. No dash lights to indicate an error of any sort.
View 3 RepliesMy problem, Brakes. I hardly have any at all (pedal all the way to the floor and hardly stop), yet the front pads are dragging, and heating the rotors. Maybe a bent line? I bled the fronts, and as soon as I loosened the bleeder nipple, a good bit of fluid came out, without pressing the pedal of course. It's dark out now or I would inspect for bent lines. Could there maybe a problem with the booster?
View 6 RepliesI have changed the clutch master cylinder on my '03 Honda Accord (6 cyl.) six times in the past 12 months. Either the o ring seal blows out or the bolts holding the plate down breaks off. I bleed the clutch of bubbles until the oil runs through also. What am I doing wrong?, I'm about to send this car packing.
View 9 RepliesI replaced my MC cap and gasket less than a year ago with a Dorman replacement and I'm leaking again, already. I don't want this to be an annual thing! Any good quality replacement? Is there any tip or trick to get the gasket to seal better?
View 9 RepliesEarly 70's Ford truck. The brake MC fluid is filled but not overfilled, and doesn't leak at all when the truck is parked. It can sit there for a month and never leak a drop, parked. But when I drive the truck, even just around the block, then park, and look inside the engine compartment immediately the brake MC is dripping brake fluid. It appears the leaking mode is by the fluid somehow jumping up and coming over the top edge of the MC when the truck is in motion or when the brakes are applied. All my diy'er years of replacing brake master cylinders on Ford Galaxies, VW Rabbits, Corollas, and this truck, I've never seen this kind of weird brake problem before. On this MC design it seems there's sort of a rubber baffle inside the lid of the MC, and that's present and accounted for.
View 17 Replies...Is there anything special that needs to be done for brake bleeding after putting in a new master cylinder? I decided today to flush my system with my vacuum bleeder and now my pedal slowly falls to the floor at a light...No problems in a panic stop or otherwise, just falls to the floor slowly when braking...no leaks, so I'm assuming a master cylinder is an order....
View 14 Replies