I have a '99 E350 van that I am feeling a light anti-lock brake pulse in the pedal when I am rolling to a slow stop under light braking. Braking doesn't seem to be affected, but it doesn't feel right. I tried locking up the brakes and didn't feel any anti-lock pulse...seems backwards.
View 1 RepliesI recently had my wheel hub and bearing replaced. The mechanic said I might hear a little noise with the brakes but they'd work. Turns out that noise is the Anti-lock braking system engaging every time I use the brakes. It happens when the car speed gets low, maybe 5-15 mph. Also, if I'm driving slow in a parking lot or something, and let off the gas, that change in speed sets the ABS system on too, without my foot being on the brake pedal.
I've also noticed sometimes when the weather is very cold, the ABS light will go on and the ABS brakes won't work; just regular brakes. Is this something that I'd be able to solve at home? Could I possibly bleed the brake lines to check for any air ( although braking seems fine ) , busted fuse for the system, anything else to check before asking the mechanic?
What would cause the rear drum brakes to lock up upon hard braking? I have replaced the wheel cylinders, installed new spring kit, and adjusters.
View 9 RepliesI have a 2004 Explorer that the anti-lock brake light comes on. Brakes work fine. What to look for first ?
View 4 RepliesI have a '99 E350 passenger van I have been trying to figure out a vibration problem. All the way up to 67 mph it is as smooth as a Lincoln, but from there up a vibration emerges from where I think is the front driver side area. I have done new rotors/calipers, because it needed them, balanced tires numerous times, have put the fronts in the rear and those have not fixed the vibration. The van has 100k on it and I love owning it especially with the big V10. The vibration is just enough to be annoying and when driving it is almost like it cycles for 4 seconds for the vibration then smooth for 6 seconds.
View 3 RepliesI have a 2011 F350, with a 4 inch Rancho Suspension lift. Ever since the lift kit was installed, more commonly when turning to the left than right, the anti lock brakes come on and the traction control light comes on/flashes. without even stepping on brake pedal.
It seems to happen when the wheel is at about 80% of max turning, about 15mph. Both wheel hubs and sensors have been replaced. road tested with Ford tech , he watched the speed sensor input while hooked to the computer and all sensor are reading correctly.
Today I went in a constant circle and can make it do it non stop, and when you try to press the brake pedal while the anti-lock (grinding/chattering) noise is happening, it only gets louder.
Using a line lock as a parking brake? Going to switch to 4 wheel disc wont have parking brake.
View 10 RepliesMy dad is having problems with his truck, brake pedal goes all the way to the floor even after bleeding all the brakes and the master cylinder. The wheel cylinder didn't have clips in it and he fixed it and it hasnt changed. What do we do? Its a 1993 f150 4.9l.....
View 4 RepliesI did a complete rebuild of my brake system in April. Drums, shoes, wheel cylinders, springs, hoses, pads, rotors, calipers, master cylinder, proportioner valve and flushed all the lines and refilled with synthetic fluid. I have made five trips from Southern California to Idaho hauling home furnishings, one trip to Oregon and one trip to Northern California since overhauling the brakes with everything working great. Now something strange is happening. The brake pedal goes to the floor with very little resistance. It isn't spongy like there is air in the lines. It just goes to the floor if you push it all the way down.
The truck stops ok but it is really scary with the pedal going down like that. You can feel when the rear brakes come on because there is a little resistance in the pedal when they come on. You can actually lock the rear brakes up and skid the rear tires. If you push the pedal down further the front brakes start coming on and if you push all the way to the floor the truck will nosedive and you will get planted in the windshield.
I wonder if the aftermarket Bronco Graveyard proportioner valve is blowing all the pressure to the rear wheels because it won't do it if you take the vacuum off of the vacuum booster. You have full pedal when the booster is deactivated and all the wheels operate normally with the exception of having to plant both feet on the pedal to stop it.
Drove a few miles and both front brakes got hot. The driving was mild failry flat road under 30 mph and the steel rims were hot to the touch around the lugs on both sides pretty evenly.
The van is new to me and I've driven maybe 20 miles so far. The pads are about new, the rotors look fine. Already I've changed all the COPS and plugs, changed the trans oil and filter and installed a drain plug, chaned the engine oil and filter, changed the air filter, and rear drums are on order. So it would be nice to be done soon!
I recently purchased a mutt of truck, a 97' F150 heritage w/5.4 Triton motor, 1/2 ton 2WD short bed.
Having a brake issue, the pedal keeps fading. I noticed it first while sitting in traffic on a down hill grade. I am holding the pedal and notice it starts to creep down slowly, I pump it up and it firms up then starts collapsing again. So general logic says hydraulics are loosing pressure right?....No leaks anywhere, so it must MC tight?
I have replaced the master cylinder, brake booster, and both rear wheel cylinders. Long story short they all needed it, truck has 265K+ on the body with 95K on the motor. The only thing I did not do by standard is bleed the MC on the bench, I installed and long bled starting with the right rear working my from longest distance to shortest (wheel speaking). So when bleeding I did of course get air coming out because of the new parts but I still have the same fade issue.
I am confident there is no air in the lines, I have bleed a quart of brake fluid through just to be sure. I have read a lot about proportioning valves and ABS stuff.
I will try and get some vehicle specific photos and attach have hit a road block with this. I am leaning towards the ABS valve thingy mounted on the drivers fender that has four lines attached (2 in and 2 out). Other than that it comes down to hard lines which have no leaks.
My buddy just bought a 1992 f250 460 the brake suck the pedal goes to the floor don't know if master or the booster or the rod needs to be adjusted or what the brake look ok and it stops ???
View 7 RepliesI am working on a e-150 van, 2005. the brake pedal fades to almost the floor with little pressure on it. I just replaced the master cylinder, bled the entire system, and it STILL fades to the floor. driving, or in park. engine running. 4 wheel disc, 4 wheel abs...
View 5 Replies86 f150 4x4
brake pedel goes straight to the floor but if u give it short pumps of the pedel it grabs but barley....master cylinder or the booster?
My 2000 Ford Ranger 4x4 truck's anti-lock braking system is not working properly. When I slow down for a stop my anti-lock brakes kick in every time for about 1 or 2 seconds. What can I do to stop this from happening.
View 2 RepliesMy brake pedal goes almost to the floor when I'm braking.I replaced the rotors, pads, shoes, power booster and the master cylinder 3 times.Had it bled twice and I still have a soft pedal, but now it firms up a bit as I pump the brakes.
View 7 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 cylinder need rebuilding or is my vacuum diaphragm going. Not sure that's what its called.
View 7 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 RepliesWhen depressed the break peddle is firm, when released break peddle does not return, replaced mc and booster, bleed breaks. Still having same problem.
View 1 RepliesBrake pedal to the floor... And a lot of fluid on the ground.
I was coming home (empty fortunately) last evening when I noticed the brake pedal give an initial resistance, then slowly sank all the way to the floorboard when slowing down to turn onto my street. When I got to the house, I noticed a hissing sound each time as the depressed brake pedal sank to the floor. When I got out, there was a lot of brake fluid on the ground on the left rear side. It appears to be between the fuel tank and frame rail. From the side it is the section between the fuel filler to just ahead of the left rear wheel. The tank and frame rail is drenched and dripping DOT 3.
I am lucky to not have been pulling my 5th wheel when this happened! However, I have a camping trip coming up in a few weeks, but now my TV is broken. What has happened, and an estimate for repairs? Where is the best place to have it fixed, dealer or specialty shop? I just bought this vehicle in January and it has 102,500 miles, and came complete with full and meticulous repair records. The P.O. was incredible at upkeep, so this is something curious and flukey to me. But do I need to worry about the other side now, too?
2001 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.
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