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1530004's avatar
1530004
Explorer
Jul 23, 2014

info Chevy P30 hydro boost brake/power sterring bleeding

I am looking for info on repairing & bleeding the hydro booting brake system by a mechanic on my 1989 Coachmen 23 ft. MH. He has replaced the leaking brake lines on the frame rail below the motor, rep...
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dakdave's avatar
dakdave
Explorer
Jul 24, 2014
remove both brake lines from master cylinder and install plugs in cylinder ports.Barely press pedal down have someone warch for bubbles in cylinder,release pedal just after bubbles.
Repeat this untill pedal is rock hard and right at top,you now have bled master cyliner and can quickly reattach lines making sure cylinder does not go empty.
Then bleed brakes as usual

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