Brake Master Cylinder problems of the 2003 Chevrolet Silverado

I depressed brake pedal to shift the truck from park, and the brake pedal went to the floor! pumping the brakes did no good. I looked underneath, and brake fluid was running down from under the driver's seat area. Upon closer inspection, one of the brake lines coming out of the abs modules had sprung a leak at the point where it bends over the top of the frame rail. If this had occurred while driving, an accident is likely, as there was no brake, despite the dual master cylinder! all of the brake lines are severely corroded, especially where the oem factory formed bends are. The brake lines are actually at the point of crumbling in places. To counter any claims about severe corrosion environment causing the problem, contrast the brake lines to the fuel lines on this vehicle which have no to very minimal corrosion. I also own another 2003 gm vehicle with far more miles, and it also has very little brake line corrosion. I have owned both these vehicles from new, and the Silverado has less miles, and less winter salt exposure than the other vehicle. I have also owned other vehicles for many more years and miles than this Silverado, and have never experienced anything like the horrible crumbling of this obviously defective brake line material used on the Silverado. Please NHTSA, take some action on this obviously serious safety situation caused by defective manufacturer materials!.

While moving forward in line at a drive through my brake pedal suddenly when straight to the floor and would barely stop my truck. By the time I returned home I had to brake with the emergency brake. I then had it towed to 4 different mechanics who would not fix my brakes for under $4000 dollars due to liability reasons. Apparently the "stainless steel" hard lines from the master cylinder had all rusted out completely. If I had been on the road far away from home there could have been a serious accident.

Due to a sudden bursting of the brake lines, 3 of the 5 lines in the cluster below the drivers door, the master cylinder emptied out causing the truck to have no brakes. This happened when my daughter and her three children were driving in a busy washington, DC suburb. Thank god no one was hurt! very dangerous! after inspection, the brake lines were corroded in several locations inside the plastic retainer clips that hold them to the frame.

Trying to stop. Brake pedal went to the floor. Vehicle did not slow down. Able to avoid accident because no vehicle was in front of me. Pulled to side of road and had vehicle towed. Terrible safety hazzard and $1000 repair bill for new brake lines and master cylinder. All lines were brittle and corruded.

Truck was pulling partially loaded trailer entered curve in road going downhill & when brakes were applied pedal went to floor with obviously no rear breaks,truck nosedived when applied at bottom of pedal, truck & trailer started to jacknife had to get off brakes and steer my way out of trouble & apply only lightly until entering straight section of road. This made for an extreamly intense ride down the hill. Any hairpin turns or stopped traffic in front would have resulted in a serious accident. Stopped & pulled off road to see what had happened and brake fluid was running all over the bottom of the drivers side frame rail. Closer inspection reveals obvious burst brake line but withour removing inner fender or wiring harness I can not actually see the rupture and it may be concealed by the clips attaching the line to the frame. Oddly the lines have some rust but nothing which looks like it is so severe to have allowed a rupture. The attaching hardware may be allowing some movement in the lines allowing additional rust to take hold. I bought this truck new in 2003 in October I think and one thing about it that was different than the two previous new chevy trucks I bought was the rear brakes never seemed to apply as hard as they should and nothing even close as the 2000 tahoe or the 1994 Silverado. Since the brake lines seem to burst in front of the abs system it could be that the abs system is partially blocking the flow creating a higher than normal line pressure between the master cylinder and the abs system.

The contact owns a 2003 Chevrolet Silverado. The contact was driving 5 mph and entering a garage when the brakes were applied but the vehicle did not respond. The failure recurred without warning. The contact stated that the brake lines were corroded with rust. The contact owned a repair shop and replaced the front and rear brake lines that led to the proportioning valves from the master cylinder. The manufacturer was not made aware of failure. The current mileage was 81,273. The failure mileage was 67,000. Updated 09/05/lj.

Consumer noticed that fluid was leaking from the driver's side wheel. While applying the brakes the pedal had slight hesitation. Then, the vehicle stopped, and a noise was heard coming from the front. Consumer drove vehicle to dealer for inspection, and mechanic determined that the master cylinder needed to be replaced.

While applying the brakes pedal went to the floor. A loud noise was heard coming from driver's side wheel. Consumer drove the vehicle to dealer for inspection, and mechanic determined hydraulic booster system needed to be replaced due to leakage.