1995 GMC Sierra Faulty Brakes

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1995 GMC SIERRA
V8
4WD
AUTOMATIC
120,000 MILES

I have a 1995 sierra 4x4. I have a soft brake pedal. The master cylinder, brake booster and brake lines replaced. The brakes have been bleed numerous times. Could this be a wheel sensor causing this problem? If not what else could it be.

Thanks

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BLACKOP555

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10,371 POSTS

Did this happen before you replaced all of the listed? Have you noticed a loss in fluid or fluid stays high?

Brake pedal get hard with vehicle off?

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Saturday, May 17th, 2008 AT 8:23 PM

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All of the fixes took place after the brake problems started.

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Tuesday, May 20th, 2008 AT 12:39 PM

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Sorry, I didn't answer all of your questions. The fluid level is always high and the brake pedal gets hard when the truck is not running.

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Tuesday, May 20th, 2008 AT 12:41 PM

BLACKOP555

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Does brakes stop vehicle normally?

Or no brakes or hardly any? Is it hard at first and the pedal slowly goes down? Or is it just like thers aleak in the brakes and it goes right to the floor.

Try bleeding left rear, right rear, front left, front right
then be sure to have the porportioning valve bleed, may be best to have a shop do this.

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Tuesday, May 20th, 2008 AT 9:23 PM

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Yes, the truck stops, but the pedal goes all the way to the floor. I also have to start stopping earlier to assure I have enough time to stop. The pedal doesn't seem to have any braking power until the very bootom of the pedal.