Hydroboost/powersteering, non Corvette
Thread Starter
C6 the C5 of tomorrow
Joined: Nov 2000
Posts: 6,665
Likes: 2
From: Twin Cities Minnesota
Hydroboost/powersteering, non Corvette
I have a Hydroboost on an RV, it stops fine the first stop or two then the pedal gets very hard.
I've replaced the booster, that helped.
I redone the brakes with good pads, also helps.
Only thing left is the power steering pump?
Would the pump loose pressure when it warms up?
The power steering BTW feels just fine...
Thanks
Keith
My 69 Corvette in paint jail
my '29 Dodge basket case
I've replaced the booster, that helped.
I redone the brakes with good pads, also helps.
Only thing left is the power steering pump?
Would the pump loose pressure when it warms up?
The power steering BTW feels just fine...
Thanks
Keith
My 69 Corvette in paint jail
my '29 Dodge basket case
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
It sounds to me like the Hydro unit itself is malfunctioning. Maybe, and I don't know the full anatomy, but there may be a valve or something to bleed off excess pressure past what the accumulator holds. If that bleed off isn't happening then it may be keeping the system pressurized.
My first guess would be you need a new unit.
My first guess would be you need a new unit.
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
Well, I am no expert on these things yet. But as I recall the gas canister is supposed to supply brake power for about 3 applications. So, if your pedal gets hard after 2 or 3 applications, it sounds like your not getting High Pressure to the booster (if it works). If you shut it down, give it a few minutes and fire it up again does it stop ok 2 or 3 more times? Is there a kink in a line? Return line from the booster is good, not stopped up?
Thread Starter
C6 the C5 of tomorrow
Joined: Nov 2000
Posts: 6,665
Likes: 2
From: Twin Cities Minnesota
DB, Ugh, I hope it's not a bad booster, that would be the suck. It's not the easiest vehicle to work on...
sixfooter,
Thats a good test.
I'm also thinking I should put a pressure gauge in it and see if it changes over time.
but what pressure should it be?
sixfooter,
Thats a good test.
I'm also thinking I should put a pressure gauge in it and see if it changes over time.
but what pressure should it be?
Last edited by 427V8; Jul 2, 2007 at 11:03 AM.
Team Owner
Joined: Oct 2004
Posts: 23,831
Likes: 10
From: Springfield MO
St. Jude Donor '07
Le Mans Master
Joined: Nov 2004
Posts: 6,434
Likes: 0
St. Jude Donor '07
I believe this place can either test or rebuild them
http://www.fleetpride.com/fp_p/index.html
They also do drive shafts
They've done a few of mine for my truck
http://www.fleetpride.com/fp_p/index.html
They also do drive shafts
They've done a few of mine for my truck
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