Question about 1985 Chevrolet S-10 Blazer

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Just replaced back brakes on 85 chevey s-10 blazer and back brake line on passenger side. now there is no back brakes or preassure and fluid is full what would cause this and how do i fix

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  • Bob Aug 19, 2010

    I have a question.Did you have to refill one side of the master cylinder,or did it not need any fluid at all?


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Cause is air in brake lines, correction is to bleed the rear brakes. Get a buddy to pump the pedal then open the bleeded scres on the rear wheels one at a time. Do this on each wheel 3 or 4 times and see if it gets better. Be sure to keep the brake fluid full, as you pump the pedal the fluid will go down.

Posted on Aug 20, 2010

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I have a 1997 chevy blazer that has a brake fluid leak just underneath passenger rear seat on drivers side and cannot find how to see what the heck is leaking what is the best procedure to figure out what...

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you will need another person with you. take the cap off of the master cylender, and make sure it is full of fluid. start at the wheel farthest away from the master cylender. so the back passengers side, have your partner pump the brakes about 10 times and hold pressure against the brake. ( Tell them not to let off until you tell them.) loosen the bleeder, fluid and air will squirt out, tighten bleeder screw back up, ( they can now let off of the pedal). do it over a couple or three times until you get a steady streem of fluid with no air. then go to the drivers side back, then passengers front, and end up at drivers front. Keep a check on the master cylender that it doesnt get empty, keep fluid in it or you will need to start over again.. hope i explained this good enough for you to understand.. whatever you do make sure your partner knows not to let off of the brake petal, until you have the bleed screw tight, and tell them to let off.

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1 Answer

I replaced the front brake pads,I need to know how to bleed the front line.

remove master cylinder cap and fill with brake fluid.
start at back passengers rear , helper pushes brake pedal 3 times. you or whoever losens zert with. small wrench. bleeds air pedal pushed to floor. repeat .
switch to driver rear brake . repeat couple times
then move to front and do same, starting also with passenger side first.
make sure master is full of fluid
hope that helps

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