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Replaced Hydro booster on a 97 chev 1 ton. Now has no pedal at all. I assume it needs to be bleed. What the proper way. Thanks

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Start at the furtherest bleeder away from your master cylinder,bleed untill no air from each one move on to next further.that should be right rear-left rear-right front-left front.just keep an eye on the fluid between wheels.hope the booster was your problem and this helps

Posted on Aug 25, 2010

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I cannot get what I feel is a good firm pedal. I have bled the brakes a least 4 times using the proper service manual procedure as well as pressure bleeding. I have gone through 3 qts. of new brake fluid....


i say you are wrong. if the brakes are hard, pumped 3 times
or more after engines stalls, that hydraulic system is not with air
when the booster is dead, the system reverses to 1929 brakes.
err 1965? with dual brakes......

so it's a booster /vacuum issue.
some booster need calibration, not just thrown on.
if you run all the FSM booster checks, read the FSM??????
Factory service manual???

worse of all , you never said why you were bleeding at all.
it just one day, got funky
it needed 2 year bleeding, (like i do)
you replaced something
did you read the pages on ABS and all the steps in bleeding
for ABS, some require a special scan tool.
RTM , no , read it twice.
did you get air in front of Mr. ABS modulator brick?

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