Brake Fluid Leak problems of the 2004 GMC Sierra 1500

The brakes on my truck failed due to the brake line corrosion. I pushed on my brakes while backing out of my driveway lost all braking power and had my brake . Luckily I was in my driveway when this happened. All of the brake fluid leaked onto the ground, I had my vehicle towed to the dealership and had the brake lines replaced. Upon speaking with the service advisor he said that this was common and that the new brake lines were coated and will not rust. None the less the repair cost and towing cost was quite expensive.

I was driving on my way home from a restaurant, just about 4 blocks from my home I applied my brakes and anti lock brakes was acting up and I pressed a little hard to stop before a stop light and the pedal went right to the floor. I had to drive very slow to get my truck to my home as I have no brakes. By the time I parked my parking spot I got out and opened my hood to look at the brake drum didnt see anything and proceeded to look underneath my truck and found a puddle of brake fluid just under drivers side bottom. I was amazed to see that and it looked so rusted, couldnt pinpoint where the leak is coming from on the lines it was all soaked with the fluid. Right now I feel that the gm corporation should replace all the lines at a no cost to me. They should not have put an inferior product on the truck and it is dangerous they can have someone killed if the brakes fail on a higher speed !!! they tricked the customer into buying a quality made trucks and its not! it is made of cheap cheap cheap quality parts that I spend on with my money when I brought the Sierra 1500 new from a gm dealer in July 2004 mileage at the time happened around 118385.

Driving into the village, had to stop for someone making a left turn, and the brake pedal went to the floor. Complete braking failure. No accident, I was able to pull off to the right, but real scary, my son was with me. Got the truck home and now all the brake fluid ran down the drive way. Looks like gm went cheap again, the brake lines are horribly rusted and the fluid is leaking from an area just under the drivers seat.

Brake failure! brake line rusted through allowing fluid to leak out. I do not understand why they have safety belts, air bags, safety glass, and many other safety features on cars and trucks but do not make it mandatory that all brake components (lines) are not made of stainless steel tubing! being unable to stop in an emergency because of brake failure can result in many catastrophic accidents and unnecessary deaths or injuries!.

Coming up driveway in 2004 GMC sierra pickup truck and went to apply the brakes and the pedal went straight to the floor - no brakes. Had to push emergency brake to stop truck. After getting out of the truck, saw fluid leaking out beneath truck under driver's side door. Looked under vehicle and found brake lines had rusted completely through and brake fluid was draining out.

04 GMC Sierra 1500 extended cab front steel brake lines corrosion/rusted and burst caused sudden fluid leakage and failure to stop placed me in a dangerous/hazardous situation. Finding a reliable shop, expensive towing and repairs caused tremendous burden and inconvenience.

This occurred on 8/13/2013 in central virginia and the truck had 93461 miles on it. While moving my 2004 GMC Sierra 1500 truck in my driveway, my brake pedal went to the floor because the rear passenger side brake line had burst. There was no warning light or chime indicating a brake system issue. The dual master cylinder system only provided enough braking to slightly slow the vehicle down and the parking brake didn't help much. I had it towed to a shop and they said it was due to a corroded steel brake line. They told me that they have had to replace these lines frequently in a large number of Chevrolet and GMC pickup trucks. They replaced the line and I had planned to replace all of the other lines in a few months. Two weeks after the repair was done and approximately 50 miles later, another line failed while I was driving approximately 45 mph. Again, there was no warning lights or chimes and the pedal went to the floor. I estimate that there was approximately 5 to 10% braking power and was unable to stop the vehicle. The parking brake did help some but is no a substitute for a real emergency brake that the older vehicles used to have. Additionally, it is not easy to lift your foot up to it as the pedal is mounted somewhat high off the floor. The repair shop said that this time it was a steel line running to the master cylinder and could be seen leaking fluid from inside the engine compartment. I had them replace all the lines. I don't understand why the NHTSA hasn't demanded a recall of these vehicles for the corroded brake lines and the failure of the dual master cylinder system to offer any reliable method of stopping the vehicle. I have had several other vehicles that are much older than this truck and their lines were always rust free and never failed. Although most are not recorded here, there are thousands of gm truck owners reporting the same problem.

The contact owns a 2004 GMC Sierra 1500. The contact stated that while driving approximately 5 mph uphill, the brake pedal was depressed without any response from the vehicle. The emergency brake was engaged in order to stop the vehicle from accelerating any farther. The contact parked the vehicle and noticed that the brakes lines were completely corroded due to excessive rust. In addition, brake fluid was leaking. The vehicle was towed to an independent mechanic and repaired. The approximate failure mileage was 60,600.

Total brake failure. Due to rusted lines brake fluid poured out.

I own a 2004 GMC k1500 with about 70000 miles on it now. On 10/17/11 at 67410 miles I was doing a normal oil change with the vehicle elevated on a rack. I noticed fluid dripping on me from under the drivers floor area. Upon closer inspection I found almost all of the brake lines leading from the front of the truck to the abs unit rusted badly and leaking. As I was moving the vehicle from the rack the brake pedal went to the floor. With very careful operation and using the parking brake I was able to get the truck back on level ground. I replaced all the lines leading from the abs unit to the front of the truck rerouting them along the frame. If this failure had occurred on the highway or while pulling my trailer a serious accident may have resulted. This problem is a manufacturing/engineering defect in many of these vehicles. You should not lose all of your brakes when a line ruptures. The dual master cylinder should allow you to have brakes on the opposite side, gm should recall these vehicles and replace the brake lines with stainless or another engineering fix.

I own a 2004 GMC k1500 with about 70000 miles on it now. On 10/17/11 at 67410 miles I was doing a normal oil change with the vehicle elevated on a rack. I noticed fluid dripping on me from under the drivers floor area. Upon closer inspection I found almost all of the brake lines leading from the front of the truck to the abs unit rusted badly and leaking. As I was moving the vehicle from the rack the brake pedal went to the floor. With very careful operation and using the parking brake I was able to get the truck back on level ground. I replaced all the lines leading from the abs unit to the front of the truck rerouting them along the frame. If this failure had occurred on the highway or while pulling my trailer a serious accident may have resulted. This problem is a manufacturing/engineering defect in many of these vehicles. You should not lose all of your brakes when a line ruptures. The dual master cylinder should allow you to have brakes on the opposite side, gm should recall these vehicles and replace the brake lines with stainless or another engineering fix.

The contact owns a 2004 GMC Sierra 1500. The contact stated that when attempting to apply the brakes, the brake pedal extended to the floor. After inspecting the vehicle he noticed that brake fluid was leaking and the brake lines were corroded which caused it to burst. The vehicle was not taken to the dealer for diagnostic testing. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 48,000. The current mileage was 70,892.