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Hydro Boost Rocks! UPDATE @ BOTTOM

Re: Hydro Boost Sucks!

Well I see what you mean about it being full of air keeping me from bleeding it. Only thing is that this is it's stock position, how it came from the factory so I would think that if it was going to bleed back and overflow out of the resevoir it would have done it all these years I've had the truck... So I'm assuming once it's blead that it won't run back... But who knows, guess I'll find out. Thanks for the advice and I'll be back in a bit to let you know /forums/images/graemlins/thumb.gif
 
Re: Hydro Boost Sucks!

A "stock" ps cooler that size? Didn't know there was such a thing. But I agree, if it's been working, no reason it shouldn't continue now. I thought maybe it was added along with the HA upgrade.

<edit> Also, if it is a tube and fin type, they seem to bleed pretty easy in any position as long as there is enough flow...
 
Re: Hydro Boost Sucks!

Yep, it is stock and it it's a tube and fin style. Just got back from store buying more power steering fluid, this makes 15 quarts in 5 days /forums/images/graemlins/shocked.gif
 
Re: Hydro Boost Sucks!

Dang man. /forums/images/graemlins/frown.gif /forums/images/graemlins/confused.gif
I've been following this thread..
Hope ya get it figured out dude. /forums/images/graemlins/thumb.gif /forums/images/graemlins/crewcab.gif /forums/images/graemlins/pimp1.gif
 
Re: Hydro Boost Sucks!

Ok,I modded the pump for more pressure and it steers better now with the tires up in the air than it did before but, as soon as I hit the brakes the steering still locks up to nothing. I mean, it's impossible to steer... I can turn it fairly easy with wheels in the air with engine off and with engine on and on the brakes there is no steering... Whats up? /forums/images/graemlins/1zhelp.gif /forums/images/graemlins/1zhelp.gif /forums/images/graemlins/1zhelp.gif /forums/images/graemlins/1zhelp.gif /forums/images/graemlins/1zhelp.gif /forums/images/graemlins/1zhelp.gif /forums/images/graemlins/1zhelp.gif /forums/images/graemlins/1zhelp.gif /forums/images/graemlins/1zhelp.gif /forums/images/graemlins/1zhelp.gif /forums/images/graemlins/1zhelp.gif

Hey, lets think of this in terms of brakes... I can't tell how the brake pedal feels right now cause I've basically forgotten what it feels like normal so I can't tell if it's good or not. So, lets say, if there was a problem with the booster, would it cause this type of problem? Say it had a bad seal in it and let all the fluid go by straight from the pump to the resevoir through the return bleeding off all pressure? Could this be? I'm stumped here and have no idea what to do anymore...
 
Re: Hydro Boost Sucks!

I don't know man, you exceeded my knowledge and experience some time ago... /forums/images/graemlins/frown.gif Since then I've been guessing. I have no idea what the failure modes are for a hydro boost but, I supose it's possible. At this point I no longer even have any guesses... /forums/images/graemlins/crazy.gif Just curious, is there any way the lines could have been hooked up wrong? Normally that wouldn't be possible with factory lines, but it's another shot in the dark... I'm afraid I have nothing else to offer...
 
Re: Hydro Boost Sucks!

Nope, lines are all same as they were. Only lines I pulled were the two returns and the hi-pressure line, kind of hard to thread the hi-pressure line into a slip on return fitting... Anyway, thanks for the help you did offer. I guess I'll just end up replacing part after part... /forums/images/graemlins/angryfire.gif
 
Re: Hydro Boost Sucks!

Yeah, I knew the factory lines couldn't be mis-matched, but I've seen people replace them with other home-brew lines (including all hose clamped rubber lines) that might be crossed up. If I think of anything else, I'll post up...
 
Re: Hydro Boost Sucks!

Ok well I dropped it and drove it. It went unbelievably well for the first few minutes. Steering was great, brakes were good but after going around the block, by the time I was home smoke was billowing from under the hood and the brakes were hitting the floor again and the steering was starting to get worse and worse. Pumped at least a quart of fluid out the filler neck...

Now I'm about to replace the booster and master cylinder... /forums/images/graemlins/angryfire.gif
 
Re: Hydro Boost Sucks!

I'll say one thing about all this.
Your brake pedal should NEVER go to the floor unless there is something wrong with the brake system itself. It doesn't matter what type of assist you have. So, replacing the master cylinder sounds ike you are barking up the right tree assuming that your wheel cylinders and cailpers are in good...which they probably are since you put them under the truck yourself.

Theory....Maybe the master is bad..this lets the piston inside go all the way through it's travel and that robs the steering ram of fluid somehow....or creates some type of weird fluid pressure near the hydro..causing all of that fluid to fly out somewhere else.

Blake
 
Re: Hydro Boost Sucks!

Yes, this is what I have been thinking about and researching the last hour or so... There are no brake fluid leaks anywhere in the system so only thing I can think of is a seal in the master cylinder doing exactly as you say with the booster.

As far as the p/s fluid leak, it is coming out of the filler neck and no other places. It doesn't leak when steering but when I stomp on the brakes it pukes.

Also what I'm thinking is that the master cylinder failed, which caused a huge load of pressure from the pump when the pedal was going to the floor which caused the pump to burn up.
 
Re: Hydro Boost Sucks!

I would say it's a bad MC as well. Sounds too me that when you hit the brakes, it creates a blockage in the line, therefore forcing out the fluid the way of least resistance, which in your case, the filler neck.
 
Re: Hydro Boost Sucks!

I would think the braking part of things is designed to get priority over the steering, but maybe the mods you're making are making things worse. It sounds like the braking side is sending too much volume back to the pump...could be an internal bypass on the braking side. Then once things start to overflow you have probs with the steering...

The amount of fluid volume going back to the pump may be a direct result of a bad MC though (I'm guessing/forums/images/graemlins/crazy.gif)

Rene
 
Re: Hydro Boost Sucks!

Another thought that might account for the booster/mc going south (if it has) simultaneous with the mods... You mentioned doing the high pressure mods earlier (along with the volume) so maybe the increase in pressure was not liked by the hydro boost? Something getting worn/old and the higher pressure just finished it off? Again, just thinking out loud...
 
Re: Hydro Boost Sucks!

What size ram did you get from WTO? When I did mine Matt asked if I had hydro boot brakes. When I told him I did he said that I would be limited to a 1.5 inch ram. He said any larger would require more fluid than even a modified pump can flow. Sounds to me like you have exceeded the flow capacity of your pump and you are cooking your fluid.

My $.02???


Mike
 
Re: Hydro Boost Sucks!

I have the 1.75" ram and he said it should be ok with the hydroboost... I guess whenever he gets back into town I can get ahold of him again and ask him about that. But thats not till the end of the week or maybe the beginning of next week and I need to drive this truck... It's my only means of transportation and I was getting ready to go buy a master cylinder and I read this post again and you guys are thinking it's something else... I would hate to spend 100 bucks on an MC and not have it work...
 
Re: Hydro Boost Sucks!

<font color="green"> I still think that you should disconnect the ram and see what happens... </font>
 
Re: Hydro Boost Sucks!

I agree with Shaggy. Disconnect the ram and cap off the ports with the supplied caps. This should get you by until Matt gets back.

Mike
 
Re: Hydro Boost Sucks!

And this will keep my brake pedal from hitting the floor??? Like stated above my brake pedal should only be able to hit the floor if there is either no fluid or a master cylinder problem...

I'll go give it a shot and see what happens though...
 
Re: Hydro Boost Sucks!

Ok, I pulled the ram out and capped the ports and the pedal still hits the floor. So whatcha think?
 
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