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09-21-2011, 02:34 AM | #1 |
F’B’D guy
Join Date: Feb 2004
Location: Texas/Maine
Posts: 2,222
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A little help with hydroboost on my 1 ton
Never worked on a system like the hydroboost on my 1976 GMC dually. The pedal went to the floor yesterday and the master cylinder was real low. I'm guessing the MC failed, I looked underneath for signs of a blown wheel cylinder/caliper but saw no signs of fluid. Is the system easy to work on? I want to fix it right, the first time...
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09-21-2011, 04:04 AM | #2 |
Registered User
Join Date: Sep 2000
Location: Gold Bar, WA
Posts: 1,216
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Re: A little help with hydroboost on my 1 ton
Replacing just the master cylinder on a hydroboost is no different than on a vacuum boost system...bench bleed it well and then bleed the system like you normally would after install. Just be sure to specify you need a MC for a hydroboost truck.
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My Projects: 1960 GMC 1/2ton with 305 V6 (daily driver) 1963 Chevy 1/2ton 2wd...converting to 4x4 1967 Suburban 1/2ton 2wd My Girlfriends Projects 1985 Chevy Suburban 3/4ton 4x4 with 6.2L diesel, 4" lift, converted to TH-400, Warn Premium manual hubs, & Wildcat 315/75/R16 tires. (daily driver) 1978 Camaro Type LT with a Marine 350 & vortec heads, Rochester Carb, & roller cam 1978 Camaro Z28 |
09-21-2011, 08:16 AM | #3 |
F’B’D guy
Join Date: Feb 2004
Location: Texas/Maine
Posts: 2,222
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Re: A little help with hydroboost on my 1 ton
Thanks for the info! Does the hydroboost contraption ever go out?
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09-21-2011, 07:09 PM | #4 |
Registered User
Join Date: Aug 2011
Location: Newark Ohio
Posts: 122
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Re: A little help with hydroboost on my 1 ton
I've been running them and working at dealerships for years and maybe replaced 2 units. Good luck, Ron.
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09-21-2011, 08:37 PM | #5 |
F’B’D guy
Join Date: Feb 2004
Location: Texas/Maine
Posts: 2,222
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Re: A little help with hydroboost on my 1 ton
Ron, are you saying it's prolly just a master cylinder?
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