Question about 1999 Chevrolet Blazer

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Bled brakes on my 1999 chevy blazer still goes to floor

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  • Chevrolet Master
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Did you get a steady stream of brake fluid from the bleed valves at all four wheels? I use a rubber line (from a vacuum line hose) on the nipples and stick the end into a transparent jar with some brake fluid in it. Makes it easy to see how the bleeding is going, air bubbles or all fluid, and there's no chance for air to sneak back in as you close off the bleed valve.

What about the master cylinder? If an internal cup or seal has failed, fluid isn't forced down under high pressure through the lines to the wheels. It only leaks back into the other chamber in the master cylinder. But if you keep pumping the brakes, as people have to do with a bad master cylinder, you get a little pressure built, come to a roolling stop...if you're lucky, you can live a long time... if you're lucky. Well, enough safety illustrations, Kevin.
The ABS system is pretty complicated. If you run into problems, take it to a brake shop. Or see if you need a new master cylinder.

Posted on Apr 21, 2014

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  • Chevrolet Master
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This is an indication that there is still air in the system and the bleeding process was inefficient. Bleed the lines at the master cylinder first by loosening off the lines and holding the pedal down until the lines are retightened. Then starting at the longest line first bleed the system finishing at the shortest line . Keep the fluid level in the reservoir topped up at all times.

Posted on Apr 21, 2014

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Posted on Jan 02, 2017

Brian032472
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SOURCE: Brake failure

I would bleed the brakes with a power bleeder.

Posted on Nov 19, 2008

  • 82 Answers

SOURCE: 1999 Chevy S10 Blazer 4x4. Replacing rear pad's,& Bleeding Breaks

have one person in the blazer pumping the brake pedal and then hold to the floor, crack the bleeder then tighten, release pedal, repeat till all air is out one side at a time, if this does not work then your ABS unit is bad witch if u follow your lines from your master cylinder u will find a black box with a motor on it, or the master cylinder itself is bad, it also can cause u to have no pedal, replace the master cylinder first, most likely cheaper.

Posted on Mar 11, 2009

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SOURCE: 1998 chevy s10- brake pedal goes to the floor-

Did you put fresh fluid in the master cylinder? I really think you still have air in the lines. To bleed manually, start with the bleeder the greatest distance from the master cylinder, car running, helper pushing down about half way on brake pedal and releasing 3 times, on 3rd time, holding pedal down to half way depressed point while you open the bleeder valve. Repeat until you are sure all air has been flushed out. Check master cyl reservoir level often, because if it gets low and you **** air into the system, you have to start all over again. Go to wheel next greatest distance from master cyl, repeat above, working your way to wheel closest to master cyl last.

Posted on Apr 12, 2009

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SOURCE: 1999 chevy blazer. brake pedel go to floor.

If you are not having to add any brake fluid to the master cylinder the master cylinder must be replaced.

Posted on Oct 23, 2009

  • 114 Answers

SOURCE: 2001 Chev blazer, brakes have been bled, peddle

You probably have air between the master cylinder and the abs pump. Fill the reservior and have someone pump the brake and bleed the primary lines at the abs pump. Good luck.

Posted on Apr 19, 2010

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1 Answer

Chevy blazer brake pedal going to the floor when engine is running


has to be air,try bleeding without the brake pedal,just open
the bleeders and let gravity run the fluid out,takes awhile but works.
(master cyl.cover off )

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if a master cylinder is bad and you are sure you have all the air out and no leaks.pedal will go to floor , running or not. if booster is bad it will cause a hard pedal. but if master cylinder is bad it will turn on a brake light on dash if it works. make sure the wheel cylinders are not leaking. I beleive that the master cylinder is bad, or you have a leak somewhere. If the master cylinder is functioning properly, the brake pedal will depress to a certain depth and no further.

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You probably have air between the master cylinder and the abs pump. Fill the reservior and have someone pump the brake and bleed the primary lines at the abs pump. Good luck.

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Oct 23, 2009 | 1999 Chevrolet Blazer

1 Answer

Brakes to the floor(almost) 99 blazer


bleed the brake again. if the pedal goes to the floor with little resistance, then the master cylinder is your problem.
the shim is to depress the noise when you applied the brake. you can skip that, if the brake works without it.

Apr 29, 2009 | 1999 Chevrolet Blazer

1 Answer

1999 Chevy S10 Blazer 4x4. Replacing rear pad's,& Bleeding Breaks


have one person in the blazer pumping the brake pedal and then hold to the floor, crack the bleeder then tighten, release pedal, repeat till all air is out one side at a time, if this does not work then your ABS unit is bad witch if u follow your lines from your master cylinder u will find a black box with a motor on it, or the master cylinder itself is bad, it also can cause u to have no pedal, replace the master cylinder first, most likely cheaper.

Mar 11, 2009 | 1997 Chevrolet S-10 Pickup

1 Answer

90 blazer s-10


the brakes need to be bled to get any and all air out of the line... if you can get an actuall pedal by pumping them... there is air in the line, or the line is bad... try getting the brakes bled first... then if that doesn't help have a mechanic check out the lines and the master cylinder.

Oct 25, 2008 | 1990 Chevrolet S-10 Blazer

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