hotrodln
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Re: Trouble bleeding brakes
UPDATE: so i gave up this week and invited my local mechanic by and told him to bring his best scanner...so he stopped by yesterday and gave it a whirl....his scanner wouldn't bleed the brakes....it made the abs unit make some minor noise, but that's it....pedal still to the floor ( almost). so i figured i would take the RV out of the barn and go find a nice muddy field that i could " exercise the ABS"...well i took it off the jackstands, put it in reverse and the brake pedal was NICE AND HIGH! WTF! so feeling brave i drove it around a bit and now all is well. no funny noises from the hydroboost, good firm brake pedal.....so i'll need to think about this one for awhile to find the secret lesson to be learned....635Views0likes0CommentsRe: Trouble bleeding brakes
after doing more research on the internet AND talking to my local mechanic i'm pretty sure i need to buy a scan tool for about 300 bucks. it's still probably cheaper than getting my unit towed to a shop...AND i'll have a cool new tool that i can use to amaze my friends!635Views0likes0CommentsRe: Trouble bleeding brakes
Stefonius wrote: I'm still wondering if you need to have the ABS pump cycled. Do you know anyone with a Ford or AutoEnginuity scan tool? I have a shop that inspects it once a year about 1 mile from my house. if the brakes work at all i might just drive it there and let them check it out. I've got no error messages on the dash....635Views0likes0CommentsRe: Trouble bleeding brakes
OK so i pressure bled the brakes- saw lots of bubbles...BUT it could have been sucking around the threads of the bleeder screw....anyways....while sucking on the bleeder screws i closed it...so as not to let any air back in....same deal...hard pedal when it's off, goes to the floor when it runs.....so i did the brake pedal pumping with an assistant, closed the bleeder screw while the brake pedal was held down...same issue. I'd hate to go change the master cylinder and find out it was fine...635Views0likes0CommentsRe: Trouble bleeding brakes
cjalphonso wrote: It could be the master cylinder. When brakes are working normal, the plunger only travels a short distance and may build up a ridge at its stopping point. When you bleed the brakes and your foot goes to the floor it pushes the rubber plunger past the ridge and can tear up the rubber causing a bad seal. I hope this is not the case, but ask me how I know :( OUCH again! it's only got 40k miles on it, so i hope that isn't it...250Views0likes0CommentsRe: Trouble bleeding brakes
j-d wrote: So I put the wheels back on and tried backing/stopping and forward/stopping. Seemed fine, so I drove it. I had upgraded from 2002 brakes to 2012 brakes and immediately found the pedal was OK and the braking was excellent. So can you make a couple controlled short moves/stops and see how it's acting? Then a short test drive? I suspect you'll be OK. Seems to me we don't realize the racket the H-B makes when the coach isn't moving and all we do is focus on the noise. that sounds like a plan! my RV is in my barn out in a nice flat field! what could go wrong?? I'll bleed em one more time with the power bleeder then try it out in the field. Maybe if it doesn't work, i'll just leave it there!206Views0likes0CommentsRe: Trouble bleeding brakes
Stefonius wrote: I don't know if your E450 is like my F450, but I had the same issue after I replaced a rotted steel brake line in the rear of the truck. In order to get a proper and thorough brake bleed on my truck, the ABS pump has to be cycled during the process... one valve at a time. This requires a scan tool capable of sending commands to the pump. Since I don't have the cash for such a tool, I have to go to the local dealership for a brake bleed. OUCH! i hope not! i never let the fluid level go too low in the reservoir, so i hope i don't have to go thru that....but we'll see!206Views0likes0CommentsRe: Trouble bleeding brakes
ron.dittmer wrote: I would try bleeding again, but I would first suck out all the fluid from the master cylinder reservoir. While sucking, move the hose around the bottom-most of the reservoir to suck out all dirt and impurities. I don't recall if you can, but if possible, wipe out the reservoir with a clean shop towel once empty. Then refill and re-bleed. I commend you and encourage you to do your own brake work. No auto shop will be as careful and determined as you to get your brakes just right. Of coarse, be sure you are doing it right to begin with. We are here to help in any way we can. Yeah the reservoir is soooo clean now that you have to open the top to see the fluid....i'm kinda of a nut for clean brake fluid....i take some of my cars to open track days where we race the pee out of them....if i don't have proof that my brake fluid was completely swapped out in the last two months, i don't go out on track! I think most people dont pay much attention to brake fluid....but it gets very contaminated....206Views0likes0Comments
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