Question about 1990 Pontiac Bonneville

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Bleedingabsbrakeson1990pontiacbonneville I replaced the master cylinder and disc brakes but the back brakes won't bleed

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  • michelle christoff Nov 30, 2012

    tried gravity bleeding it didn't work. however they did reverse bleed. It makes no sense

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  • 129 Answers

Easy way ...jack front of car ,open your bleeders and let gravity work its magic but keep an eye on your master so it stays full.

Posted on Nov 30, 2012

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SOURCE: I need to replace the brake master cylinder, how do I do it?

Remove nuts from vac. booster remove brake lines reassemble on vac booster conect lines snugly fill with fluid thenbleed lines and tighten should work

Posted on Jul 14, 2008

  • 1779 Answers

SOURCE: bleed brakes but no pedal

Good! You bled the master cyl. before installation! The proper order of bleeding the lines, is to start with the wheel the greatest distance from the master cylinder. Then work your way to the next greatest distance, and last, the closest wheel. Make sure all air is removed from the lines before you proceed to the next wheel, and frequently check the master cyl. level, because, as I'm sure you know, if you **** in air at the master, you have to start all over again. I'm assuming you don't have a power bleeder, so with a helper do this with car running (make sure it's on safety stands and not going to fall on you!) Pump pedal 3 times, no need to mash the pedal into the floor, just 3 pumps 1/2 way down, hold 3rd pump at half way down level while bleeder is opened, when flow is about to stop at bleeder, close bleeder and repeat til no evidence of any air. Let me know how it goes and if you need any help.

Posted on Apr 21, 2009

  • 14 Answers

SOURCE: 1993 how do you properly bleed a new master cylinder

First You Bench Bleed The Master Cylinder Before Installation. Use The Provided Plugs Given With The New Master. Use Screw Driver And In And Out Motion You Bleed Until No Bubbles. Then After Installation, Crack Line And Have Buddy Slowly Push Down On Pedal. Close Line. Repeat To Other Line. You're Done

Posted on May 03, 2009

  • 1 Answer

SOURCE: 1999 pontiac sunfire bleeding clutch

my 1999 pontiac sunfire drivers door latch is broke can not close the door. i have it pulled shut? how much will a used latch cost, or even 3 bolts for it? all the auto stores/ jumk yards are closed for me to call

Posted on Aug 01, 2009

  • 98 Answers

SOURCE: 1996 Grand Am, no leaks in brake lines, replaced

Not bench bleeding is a big mistake. You have to bench bleed. I know you dont want to hear this but your gonna have to take that master cylinder back off and bench bleed it. I hope you dont have a.b.s. cause if you do you just pumped it full of air. If that is the case you are going to have to pressure bleed it at a repair shop. after you bench bleed use this process to bleed your brakes start with the wheel farthest from the master cylinder have someone pump the brake pedal slowly about seven times then hold it to the floor. then you open the brake bleeder and air and fluid will come out. then close the bleeder make sure your assistant holds the pedal down to the floor the whole time until the bleeder is closed then have them pump the pedal again another seven times and hold it to the floor open the bleeder then close it again. keep doing this process until you see a clear stream of brake fluid coming out without it spitting air you will be able to tell the difference when the air is gone. then proceed to the next wheel farthest away from the master cylinder. make sure you keep the master cylinder full of fluid while you are bleeding dont let it go dry.

Posted on Nov 01, 2009

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