Nine problems related to brake master cylinder have been reported for the 2000 Chevrolet Silverado. The most recently reported issues are listed below.
Driving on 4 lane business road coming to a red light pushed on brakes pedal went to floor and no brakes had to swerve into other lane to keep from hitting car in front of me ran red light downshifted into low gear and began rubbing tires on curb until I came to a stop. Checked brake fluid level was empty looked under truck and brake line had rusted through under drivers door. Walked 2 blocks to parts store and brought brake fluid filled master cylinder pumped brakes still had no brakes,I could not understand how one broken line left me with no brakes, I thought they were supposed two systems front and rear ? I have several vintage trucks from 67-72 era all still have original brake lines, I think gm skimped on materials and left us with a safety issue.
Started truck. Put foot on brake pedal. Felt usual resistance at brake pedal. Put truck in drive. Brake pedal went to floor. Brakes had a total failure. Truck rolled across street while I was shifting truck to neutral and trying to stop. Steel brake pipes were not leaking before I started the truck. Steel brake pipes have at least 2 leaks in the pipes now. 1 leak is in the rear brake supply (steel) pipe between the master cylinder and the abs module. The other leak is in a steel brake pipe near the abs module. Brakes worked fine, with no leaks, when I had driven the truck a few days before. Failure was sudden and total. I had no brakes as soon as the failure occurred.
Customer went to apply brakes coming down a steep hill. Brake pedal went all the way to the floor. Vehicle was wreckered to the repair shop the next day. Upon inspection, all brake lines from the master cylinder to the wheels were rusted and corroded. The place where the leak happened was right at the abs pump. Both lines for the front and rear braking systems burst before the abs pump causing a complete loss of brakes. I have worked on many Chevroletss of this model and all seem to have the same problem. This particular one has always been a north carolina vehicle. Has never been up north.
The brake lines failed on my Silverado and I completely lost braking. With a dual master cylinder system this is usually not possible. On these trucks the lines are spring covered plain steel lines that are packed tight together next to the frame before they enter the antilock brake controller, which is under the floor on the drivers side of the truck. The way the lines are constructed and routed leads to contaminates being trapped in the area around the lines causing them to prematurely rust out. The fact that both the front and rear lines and routed together to the middle of the vehicle eliminates the safety benifits of the dual master cylinder / front and rear systems that provided an additonal safety factor on older vehicles. In my case the front and rear lines failed at the same point and at the same time. Additionally on inspecting my truck the hardware that holds the emergency brake pads in place had also rusted away and caused the emergency brake lining to set askew in the rotor causing it to get worn down. In an emergency situation you may not be able to count on the emergency brake to operate as well. All in all a really poor designed system that should be recalled and fixed before lives are lost.
I own a 2000 chevy Silverado 4x4. I have had a problem with the brakes for about two years. The anti-lock brake computer does not function properly all the time. I can loose the brakes at any time. I have talked to a few other owners of the same style truck and they have had similar problems. I have had the master cylinder replaced, new brakes installed, and the most recent recall to clean the brake cylinder(?) cleaned by a chevy dealer completed. The problem still existed. It may have been 2-3 weeks in-between failures. What happens is the brake pedal goes to the floor with minimum stopping power. That's exactly what happened this last time but unfortunately this time I didn't have enough road to stop on and ran into a tree. Damages, according to the body shop, are going to be between $3000-$4000 dollars. The truck is in the repair shop at this time and I will have the anti-lock brake computer replaced. I know for a fact this is the cause of my accident. I was hoping for a recall from Chevrolet to avoid the expensive repair. I will save the old unit along with all the repair bills and future increases in my insurance premiums and hope that somewhere in the future the truck does get a recall. I will then in turn hold Chevrolet responsible for all bills incurred.
I own a 2000 Chevrolet Silverado that has had two brake master cylinder failures. I have seen internet postings of others with this problem. My concern is that the master cylinder could fail if the design is defective, leading to an accident.
Brake system failed with 5,600 miles on vehicle which resulted in a crash. Dealership examined vehicle, and replaced brake master cylinder to correct problem. Since this repair brakes have operated erratically, resulting in extended stopping distance. Dealership claimed brakes were within specifications set by manufacturer. One person was injured in accident.
Brake pedal went to floor, antilock brakes engaged, on dry pavement at 30 miles per hour. Has happened four times. Three times on rough pavement, once on dry. Dealer replaced ebcm and brake pressure modulator. At next incident dealer replaced brake master cylinder. Now brake pedal slowly goes to floor after stopped in drive position.
The plastic brake-fluid reservoir is very sloppily (and loosely) attached to the master cyclinder via two pins thru oversized holes in the reservoir assembly. The holes are much larger than the restraining pins resulting in considerable slop. The reservoir assembly is not rigidly attached to the master cylinder and is free to vibrate. The range of motion allowed by the slop is considerable. I fear that sympathetic engine or road vibrations may damage the master-cylinder/reservoir interface. I checked out a new Silverado in the dealer's show room and its brake-fluid reservoir also appeared to be inadequately fastened to the master-cylinder assembly.