Brakes, Again.... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-18-2004, 05:17 PM   #1
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Default Brakes, Again....

I have no brakes, at all. The Anti-lock Light is on. The pedal is slightly somewhere near stiff if I basically jam the thing, otherwise it smoothly goes to the floor. It'* not leaking out anywhere. The light being on and the brakes doing the same thing they've done thirty times makes me think that ABS box has died, I have one from my 94, they look exactly the same but the 94 one says "Traction" on it. Will it swap in?

This all looks like an internally leaking master, But I'm on my third one, I'm starting to doubt that diagnosis.

If I bypass the ABS, building a real brake system some engineer hasn't gotten into and "improved" will the ecm go nuts or will it get over it?

I don't need ABS if it'* going to periodically take away all braking, This is seriously pissing me off. I love this car, But I'm seriously considering buying something else because every two months or so I have no brakes.
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Old 08-18-2004, 05:40 PM   #2
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Default Re: Brakes, Again....

Quote:
Originally Posted by Damemorder
This all looks like an internally leaking master, But I'm on my third one, I'm starting to doubt that diagnosis.
Geez, that'* the first thing I thought of too. Maybe you should install a New MC instead of a rebuilt unit. I'm just guessing your last MC was a rebuilt
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Old 08-18-2004, 05:42 PM   #3
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The last two have been Brand Spanking New. The first from autozone, the second from NAPA.
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Old 08-18-2004, 06:36 PM   #4
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the ABS box that has traction on it is form the SSE with the T/C option, you dont have it the T/C on your car
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Old 08-18-2004, 06:41 PM   #5
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Quote:
Originally Posted by 1993 SLE
the ABS box that has traction on it is form the SSE with the T/C option, you dont have it the T/C on your car
I know. Will it work?
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Old 08-18-2004, 07:35 PM   #6
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Have you checked the lines completely over the whole car? They can get old and expand with pressure.

What'* your bias thingy (forgot the name) doing?
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Old 08-18-2004, 07:56 PM   #7
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Quote:
Originally Posted by jr's3800
Dame I am just about at a loss on you brake problems... The ABS pump/EBCM could both be dead and you should still have brakes just without ABS...
I thought the same thing....
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But even though the brake system brain box on the 94 SSE is an EBTCM you may try it and see if it works... If it fried it fries...
I'll try it.
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Also if you paid $60-$70 for the Master cylinder it was most likely rebuilt... Most of them are remanufactured... The one that was installed on my car in 1998 was a brand new GM master cylinder... To date I have never had a single issue.....
I'm going to kick the guy at NAPA square in the head. I paid 62.58.
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Also have you ever checked you rear wheel cylinders as well as the rear shoe adjustment?
Rebuilt rear cylinders, new shoes.
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Does the brake pedal go to the floor with little resistance? If the car is off can you pump the brakes untill the pedal becomes stiff?
Pumping doesn't make them stiff. Clean down to the floor.
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Originally Posted by jr's3800
Could also be a possibility that the ABS pump is shot to hell, but the overall system should work without the ABS...
I was thinking one of the valves may open, I know it'* supposed to be failsafe, but sh!# happens.
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If you had a 1988-1990 SSE we'd be talking about a system swap for sure...<--- Freaky brake systems here...
I've heard about that TEVES..... Happy I don't have it....
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Let us know what if any other ideas you may have.. I'm stumpped..
I've got a few things I haven't tryed yet, Otherwise I'm screwed.
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Old 08-18-2004, 07:58 PM   #8
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Quote:
Originally Posted by BonneMeMN
Have you checked the lines completely over the whole car? They can get old and expand with pressure.

What'* your bias thingy (forgot the name) doing?
New hoses is on my list, But I doubt they're throwing the compliance out that far...

That pressure differential switch? I don't think i have one as a seperate unit, might be part of the PMV....
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Old 08-18-2004, 08:04 PM   #9
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Original calipers?
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Old 08-18-2004, 08:09 PM   #10
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Umm... Yeah, I ought to rebuild those...
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