I have a 1996 Chevy Tahoe.... At first the brake petal was very hard to push down which made me think it was the Power Brake Boost. After awhile I started to hear "grinding" noises which made me think I needed brake pads. The other day while driving I could bearly stop my truck, like the brakes went out. I had to go through two stop signs without being able to stop. The petal went down to the floor. I just had the power brake boost replaced but the brakes wont do anything. They go straight down and feel very loose. I was told the piston was sticking out "to far" and I may need rotors and pads. I feel like screaming, what could be wrong?
SOURCE: hydro boost
Hi,
Appreciate the "Ask Me" and my compliments, scary driving one of those in our roads.
Might you have to check the Brake Booster. Normally, there would be a vacuum line to the booster from the intake manifold. Common design calls for a PCV type valve at the entrance to the booster. Pls check this. It also operates on the same principle and therefore checks the same, you can blow one way but not the other; would have a sliding ball inside that acts as the valve. In some instances, it could be the diaphragm inside that might have a tear.
Of course, the Proportioning valve system must likewise be checked. I have heard a lot of brake problems with K2500 especially the rear drum.
Incidentally, there was a recall order of some sort. TSB 99-05-24-001A SEP 99 which addressed brake pull/wear, the recall involved replacing the proportioning valve.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards. Thank you for using FixYa.
SOURCE: Brakes no longer work in 1989 Chevy half ton pickup 2 wheel drive 350cubic inch
change dump valve under master cylinder
SOURCE: 2002 tahoe breaks lock up during driving
It sounds like the rear calipers are bad. Raise the rear wheels and see if you can turn the tires. If you can't, open the bleeder. If you still can't replace the caliper. If you can turn the wheel after you open the bleeder, replace the brake hose to that wheel.
SOURCE: hard brake pedal hear air leaking when pedal pushed
When you press on the brake? Have your brake vacuum assist checked. It,s that bigspaceship looking thing between the brake master cylinder an firewall. good luck and be safe.
SOURCE: parking brake pedal goes to floor
The disc brake pads are NOT used for the parking brake. The parking brake uses mini-drum type shoes inside the rear disc rotor.
Take a look at http://wiki.answers.com/Q/How_do_you_change_the_emergency_brake_pads_on_a_2000_Chevy_1500_Silverado_Pickup
For more info
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