im bleeding more tan my brakes................help - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-19-2008, 09:29 PM   #1
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Default im bleeding more tan my brakes................help

my 2001 ville has no pedal,replaced front rotor pads ,and calipers,bleed.no pedal.bleed all calipers rr,lr,rf,lf, no pedal someone told my it may need a scanner,heck i need a drink this is killin me,please help
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Old 04-19-2008, 09:47 PM   #2
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Bad EBCM? Electronic Brake Control Module
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Old 04-19-2008, 10:54 PM   #3
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Did you have this problem before you changed the front brakes? Is that why you swapped out the calipers?
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Old 04-20-2008, 10:31 AM   #4
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Quote:
Originally Posted by Archon
Did you have this problem before you changed the front brakes? Is that why you swapped out the calipers?
no just thought i'd replace everything i could since i was under the ville, shes at 101,00 and she was shakin @70 or 75 on the hiway and the whole thing shook when the brakes were hot (city driving)plus i live in Alabama (ROLL TIDE!!!) and it'* gona get a LOT hotter soon.a mech. guy said that i drained the accumalator...what?thats new to me.
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Old 04-20-2008, 11:48 AM   #5
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I had trouble getting my front brakes bled also, after replacing the pads and rotors. There would be some pressure when stepping on the pedal, but would eventually go to the floor. It finally got to where I felt comfortable that I could stop the car, so I took it out for a quick drive around the block. For some reason, that firmed up the pedal some, and a couple of quick bleeds after that took care of the rest. If you decide to do that, be absolutely certain that you will be able to stop the car! You accept all responsibility for trying that.

What method are you using to bleed the brakes? Do you or can you get access to a power bleeder?
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Old 04-20-2008, 12:08 PM   #6
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For the record, the EBCM has no effect on the pedal going to the floor or not. We have a mechanical/hydraulic issue here, not electronic. The EBCM can fail or be disconnected and not affect regular braking.

I'm with the post above. Bleeding technique and a little perseverance will pay off.
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Old 04-20-2008, 03:40 PM   #7
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Quote:
Originally Posted by willwren
For the record, the EBCM has no effect on the pedal going to the floor or not. We have a mechanical/hydraulic issue here, not electronic. The EBCM can fail or be disconnected and not affect regular braking.

I'm with the post above. Bleeding technique and a little perseverance will pay off.
we bled almost a whole qt. through the system,at the calipers,but used the ol'methed rr,lr,rf,lf with no luck. i found som info bleed from rr,lf,lr,rf and wait 15 sec. between bleeds, which i did neither,also so changed calipers to a different brand (2x) with no luck. i think i sat on my own foot,if you know what i mean.
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Old 04-21-2008, 01:23 AM   #8
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You have an interesting problem here. If you at any time let the fluid run out and emptied the resevoir then you will have to get access to a scan tool that has output functions. The ABS BPMV ( Brake Pressure Modulator Valve) will trap air inside of it. You will have to run an automated ABS bleed with the scan tool then manually bleed the brakes again. If you did not run the system low then make sure your old lines aren't expanding on you from the movement of the caliper change. It is possible to have old brake hoses go bad after a caliper has been removed. Good luck. Hope this helps.
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Old 04-21-2008, 09:16 AM   #9
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Please describe your bleeding technique for us (step by step as if we didn't know how).
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