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Old 02-10-2007, 07:29 PM   #6
2000CAYukon
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Re: 1989 GMC Sierra....brake issues

Quote:
Originally Posted by vzfox
Dallas, TX........I just now got done TOTALLY bypassing the entire ABS system. The combo valve and the dump valve. Both the front and rear brake lines now go from the master cylinder to the wheels. I now have half a brake pedal while the truck is running, which is alot better than I had, but it is still the rear brakes/brake lines that arent pressurizing. I continue to bleed the rear brakes and continue to hear a small amount of air blow out of them, but I have ran "literally" 64 fl oz of brand new brake fluid thru the rear brake lines alone. I can find no evidence of any fluid leakage at the wheels or the lines.

Do I have to take the bulb out of the dash so the "brake" light dont stay on, now that I have bypassed the ABS?
Is it your plan to stay with ABS bypassed? You will probably have issues with the rear locking up.

I would tighten up the rear brakes by adjusting them manually. You need to take the wheels off then the drum. Adjust the brakes a couple of clicks. Then put the drum back on. Do this until it is fairly tight and you feel a lot of drag.

//2000CAYukon
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