Results for "hydroboost"

Around my neighborhood, opinions on hydroboost fluid seepage are all over the map—my neighbor calls it normal wear, the RV dealer screams safety hazard, and YouTube mechanics can't agree either. It's not a major leak - just some dampness and staining where it mounts. I'm remembering a previous forum discussion where a user named Subford had similar seepage years ago and wanted to follow up on their experience.

The seeping seems minor right now, but I'm worried it could suddenly get worse while we're on the road. I had attached a picture similar to one I saw in an older forum post. Should I stop driving immediately and get it fixed? Or is some seeping normal and okay to monitor?

My main questions: Is minor hydroboost seeping immediately dangerous? Did Subford ever end up replacing their hydroboost? What does the replacement job involve? I want to be safe but also don't want to panic if this isn't urgent. …more

Between the small hydraulic leak that started on my 1995 F53 hydroboost brake system last month and what's happening now, I'm wondering how much worse this nightmare can get. Right now it's just a slow drip - maybe one drop per minute - and I can feel the power steering is slightly stiffer than normal, plus the brake pedal requires a bit more effort than usual.

What I really need to understand is the theory behind how hydroboost systems operate, since this is different from the vacuum brake boosters I'm used to. More importantly, if this leak gets progressively worse and I don't address it immediately, what's my worst-case scenario? Will I completely lose power steering and power braking assistance, or would I still have manual control of both systems? I'm trying to figure out whether this is something I need to drop everything and fix right now, or if I have some time to plan the repair properly. …more

Looked under the hood of my newly purchased RV and discovered the previous owner left the F53's external power steering reservoir with three return lines in absolutely terrible condition. They all clamp onto separate fittings on the bottom of the reservoir.

I'm trying to figure out the right way to flush this system. Should I be disconnecting each return line one at a time from the reservoir and doing them separately? And if I do that, do I need to cap off the reservoir fitting where each line was connected so it doesn't just dump fluid everywhere when I'm working on the other components?

Or is there a simpler approach that'll get all three components clean without all the hassle of disconnecting lines? …more

Spent the weekend troubleshooting my 1996 Ford F53 motorhome's spongy brake pedal, and now I'm really concerned about the hydroboost system safety. When I disassembled the unit, I discovered there's no check valve ball in the accumulator assembly. The system has been working fine so far, but I watched a video where someone's accumulator failed catastrophically without this ball and damaged other components.

I'm worried about operating the RV without this part, but I'm also second-guessing myself since the brakes have been functioning normally. Do most 1996 Ford F53 hydroboost units actually require this check valve ball, or could mine be a special variant that doesn't need it? I don't want to risk brake failure or cause expensive damage by running it incorrectly. …more