Brake Hoses, Lines/piping, And Fittings Problems of GMC Sierra - part 2

When applying brakes going down hill, put the brake pedal to floor and din't have any brakes. Brake line rotted.

See all problems of the 2005 GMC Sierra 🔎.

Dear sir or MA'am, I have a 2002 GMC Sierra truck that I bought new in 2002. The brakes recently failed completely while my wife was driving on or about September 26, 2014. The brake pedal went to the floor without significant braking action. Fortunately she was able to stop safely and was not involved in an accident. Upon examination, the brake line to the left rear wheel was completely rusted through. I examined the rest of the lines and noticed that the brake lines, the transmission cooler line and the fuel line all show signs of major corrosion, especially along the frame. I have less than 43,000 miles on this truck and it was garage-kept the first nine years I owned it. I live in ky where the roads are only salted a few times a year. The rest of the vehicle is relatively rust free. The truck is unsafe to drive now. Even if I patch the leak, the rest of the lines could fail at any time. I could suffer catastrophic brake failure while towing my boat or horse trailer or simply going down a hill. Furthermore, the fuel lines are under considerable pressure and if they rupture, there could be a very dangerous fire hazard. If the transmission cooler lines rupture, I could have a complete transmission failure. I have read that this is a known issue with Chevrolet and GMC trucks for years 1999 to 2003 and that the nthsa has looked into this in the past. If other trucks are in the same condition as mine (and I believe there are), there is a major safety problem on the roads right now. Yet, to date no recall has been issued. I think this is courting disaster. It is my opinion that lines made with inferior steel were used in the construction of this vehicle, yet gm refuses to acknowledge the fact. I urge you to look further into this matter. This is nthsa case number: 699264.

See all problems of the 2002 GMC Sierra 🔎.

The contact owns a 2003 GMC Sierra. While driving at 60 mph, the brake pedal was depressed but took a longer distance to stop the vehicle. The vehicle was taken to an independent mechanic multiple times who diagnosed that the brake lines needed to be replaced. The vehicle was repaired; however, the failure recurred. The manufacturer was notified of the failure. The failure mileage was 46,000. The VIN was unavailable.

See all problems of the 2003 GMC Sierra 🔎.

Driving down hill, approx speed of 45 mph, went to apply brakes when did heard pop noise and brake pedal went to the floor with no stopping. Pumped on brakes and geared down truck to slow down. Pulled over to side of road to notice that fluid was coming out of the body. Was able to get mirror and research and find the brake line had corroded with rust, and it has split.

See all problems of the 1999 GMC Sierra 🔎.

Rusted rear brake line tubing - loss of fluid - no braking power on any wheels - emergency brake was the only way of stopping the truck.

See all problems of the 2007 GMC Sierra 🔎.

The contact owns a 1999 GMC Sierra. The contact stated that while driving 25 mph, the brakes failed. As a result, the contact had to switch gears in order to stop the vehicle. After inspecting the vehicle, the contact noticed that the brake line had fractured. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 196,000.

I was taking my 4 yr old to school this morning with his 1 yr old sister when the brakes completely failed. Upon approaching a red stoplight at 30 miles per hour with three cars stopped ahead of me I pressed the brake pedal and it went completely to the floor. I pulled gearshift to the low position and swerved into the vacant left hand turning lane to avoid the cars stopped at the light. Then turned hard right as to not enter the busy intersection in front of me with no avail. Somehow we were not hit by another vehicle. At that time I pulled vehicle over to the shoulder of the road which ended abruptly and turned into a grassy area of a baseball field where the vehicle finally came to a stop. Gm states that if there is a brake line failure the vehicle still has braking ability. I can tell you first hand that is a totally false statement. My vehicle dash did not display any problem prior to this incident. When vehicle was tow to my home I put key in the ignition to check my mileage and now a brake failure message is displayed. I am very angry with gm for not notifying me of this problem and never had any idea there was an on going issue until today. Myself and my two children could have been killed today because of this neglect. Please do something to rectify this problem because many more gm vehicle will have this problem and innocent people and their families will be hurt or even die.

See all problems of the 2004 GMC Sierra 🔎.

I was on my way home from an event this past Saturday heading to drop off my son. After dropping him off I continued home. I was traveling about 35 mph when the light turned red and I depressed the brake and was terrified when it went down to the floor. Although I have as able to come to a stop without incident I have as still terrified. I am a disabled veteran with a heart condition and could have had a heart attack. I had my truck looked at by my certified mechanic and he told me that my brake line ruptured due to rust and it will cost me around $1000. 00 for repairs. I have had many many cars and trucks in my lifetime and never ever experienced any problems of this nature. It seems to me the manufacture would allow for these northern conditions with the parts they use in production.

See all problems of the 2001 GMC Sierra 🔎.

I went to put on my brakes, I first started to stop then my brake pedal went all the way to the floor. I hit a vehicle in front of me. The collision shop that I had it repaired at said the brake lines were rusted. After further investigation I read a lot of complaints about this same defect in chey and GMC trucks.

See all problems of the 2006 GMC Sierra 🔎.

The brake line ruptured on my 2004 GMC Sierra 1500 pick up truck - inspected by a certified mechanic, all remaining lines need to be change due to corrosion.

The contact owns a 2003 GMC Sierra. While driving approximately 30 mph, the brake pedal sank to the floorboard when it was depressed. The contact had to shift to a lower gear to slow down the vehicle and the brake service warning indicator illuminated. The contact discovered that the brake fluid lines were ruptured and needed to be replaced. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 100,000.

Pulling out of driveway, no brakes. Broken corroded brake line, appears that all lines look in the same shape . Luckily there was no oncoming traffic. The hole in the line is directly under the driver seat.

I was coming to a stop and I lost my brakes I was able to get it stopped. Took it to my mechanic right away and was told the brake line burst and hit my gas line busting it as well. They had the vehicle for over 3 weeks. They repaired the gas line easy enough but the brake line had to be completely replaced.

I went out to move the truck and noticed there was fluid on the driveway. I examined the rear driver side and there was a brake line that had rusted through. I contacted the local dealership and they stated they were unaware of this being an issue with those trucks. I had researched and found that there have been multiple complaints to gm about this issue. Fortunately, this occurred when the vehicle was parked and did not fail while driving my family in the vehicle. What I have read is that the brake lines were manufactured with poor quality materials and that they fail. . Read more...

Had to stop suddenly at about 20 mph. Brake lines burst due to corrosion. All lines had to be replaced. Cost $756. 87 for replacement.

Without any warnings when attempting to come to a quick stop brake pedal went to the floor and had no braking power. Avoided crash by driving onto a lawn. I have found that all the brake lines where they are attached to the frame in a plastic support under the drivers door have rotted through. Contacted GMC with no success just informing they are aware but no re-calls.

Truck was parked. Went to put it into drive and stepped on the brake pedal. The pedal went to the floor. The steel brake line back by the driver rear wheel ruptured. On closer inspection, I will have to replace all brake lines as they are so rusty and corroded. It is a safety issue. I was fortunate that I nor my wife was traveling on the road when this happened.

See all problems of the 2000 GMC Sierra 🔎.

As a minivan in front of me put their left turn signal on late, I had to hit my brakes quickly and when I did my brake pedal went to the floor and I was pumping air and had no brakes at all. I swirved around the van and luckily I was on an inclined road as I was able to slow the vehicle down into a lot and then pulled the emergency brake to get the truck stopped. My front and back brake line blew out and my mechanic said I was lucky that I wasn't killed. Now the truck is not usable and the after 52,000 miles I feel this is a situation of defective brake lines.

Tl-the contact owns a 2001 GMC Sierra. The contact stated that while driving 65 mph, the brake pedal was depressed and the brakes failed to respond. The contact had to use the emergency brake to stop the vehicle. The independent mechanic diagnosed that the brake lines had rust build up. The independent mechanic repaired one brake line. The manufacturer had not been notified. The approximate failure mileage was 170,000. Ne.

There is no warning the pedal goes to the floor and you don't stop. I had a 5th wheel trailer hooked to my 2006 GMC 2500 ext. Cab long bed Sierra p/u with 62,459 miles on it. I was able to stop it with the trailer brakes and a scratch on my front bumper from a tractor trailer that was in front of me. I have owned over 200 cars + trucks since I started driving. I do all my one work on them and I never had a brake line fail, I will be 70 this year. It is ridiculous for an 8 year old truck to have rusted brake lines to fail. The worst part of this is that nobody notified the public that this was a problem when they GMC knows about this problem. I found a garage that fixed the two front lines. So we could get home. Then I inspected the other lines and ordered the complete set of stainless steel lines from ebay, when I removed the old lines they all were rusted at hidden spots two were close to failing. Why do they have to wait for some one to die before they notify the public there is a safety problem. This is GMC and our government (NHTSA) failing the people.

While parking the brake pedal went completely to the floor and sprayed break line fluid all on the manifold. There were zero brakes and discovered the brake lines were corroded. The vehicle had to be towed to a shop for repair to the leak. This did not fix the problem because all of the lines are corroded. I would not consider our state a "salt state" being that we live in the south. Due to these cheap break lines we will have to have them all replaced. We are very, very dissatisfied and will probably never buy a GMC product if this problem is not resolved by gm.

I was driving approx 35 mph when a dog ran in front of my vehicle. I applied the brakes to avoid hitting the dog. A moment later I went to apply brakes to slow down for an unfamiliar turn and my pedal went to the floor. I managed to downshift to come to a stop and upon inspection, noticed a hole in my drivers side rear brake line. All of the brake lines have a severe amount of rust. The bundle of lines running along the frame on the driver's side are the worst.

Applied brakes when on a downhill on ramp to merge into traffic. Brake pedal went to floor without slowing vehicle. Had to swerve off road to avoid a collision . Had truck towed to dealer to repair rusted out brake lines $1750. 00 est. Was told fuel lines also looked rusted $700. 00 est.

Experienced complete failure of the braking system. Fortunately the vehicle was only traveling 15mph and in an area that wasn't congested with traffic. I was able to stop by using the roadside berm banking and avoided any further damage. Vehicle was towed to a nearby gm dealership where it was determined that both brake lines had corroded so badly it caused the lines to rupture resulting in an immediate loss of pressure and complete brake failure. Just days earlier I had the brakes serviced at a different gm dealership near my home and there was no mention of this condition nor the previous reports of this problem from other owners as noted on this web site. Even if gm or the NHTSA does not deem this issue frequent enough to issue a TSB, at minimum a service warning/recommendation should be issued to gm dealerships and other registered service providers alerting them to inspect for this condition while servicing the braking systems for these model years. Death or serious injury can and most likely will occur as there are many vehicles from these model years still on the road.

2003 GMC Sierra 1500, brake line failure. Purchased truck new in 2003 while stationed in the south, transferred to new england in 2008. 50/50 north-south truck, can't blame it all on road salt. Event: while in parking lot the brake pedal went right to the floor while shifting into reverse. Brake lines completely rotted out, fluid on the ground left front side and under drivers seat area. Drums and rotors were replaced two years prior. Truck was towed to the shop and I'm still awaiting the estimate. After quickly reading the amount of issues in the past 24 hours gm needs to recall and fix these issue before loss of life numbers increase.

Rusted out/ corroded brake lines burst while stopping for a deer running out on the road. Was warned of this problem upon purchase of the vehicle in 2010 and personally coated all brake lines b4 winter every year. . . Never saw worse lines! I own classic cars that are twice as old with shiney original brake lines. The fuel lines also rotted out spilling fuel over the top of the fuel tank and on the ground while filling up. All fuel lines and fuel pump connections were severely rotted. Worst I have seen. Dash consistently changes languages rendering odometer non functional. Speedometer is inaccurate some times not even working especially on cold days. Hmmmm rotted brakes+no speedometer+leaky fuel lines=crash,bang boom!. . And I have a car seat in my vehicle! luckly I perform preventative maintenance and drive safely. Still wonder how these issues got swept under the rug.

I was driving on a highway getting ready to make a left hand turn off the highway when all of a sudden my brake pedal went to the instead of continuing the turn I pulled onto the center median so I would not hit the on coming traffic. I ruptured a brake line and had to have my truck towed to a repair shop. After reading on line I understand this is a persistent problem with the Sierra and silverado. I also have read that gm is aware of the problem but refuses to issue a recall because they feel it is not a safety issue. We'll if I had not pulled the wheel back to the right and went into the median I would have been involved in a head on crash,I would call that a safety issue.

I was driving my 2007 GMC siearra classic 2500hd wt and my brake line failed. I went threw the stop sign out onto a main road and just missed getting t-boned by a tractor trailer. I had no brakes at all. My brakes are all up to date. Brand new brake pads and rotors. I read tons of complaints online of people with the same problem with gm vehicles brake lines rusting out prematurely. My truck only has 32,164 miles on it and is well taken care of. I get compliments on my truck everywhere I go. I got nowhere with gm corporate or marty's GMC in kingston,MA where I bought this truck brand new. They all pretended they do not know anything about these brake lines failing. They now use a different coated brake line to replace the cheaply made brake lines at the customers expense. Please make gm do a safety recall on these failing rusting brake lines before someone gets killed. I was almost not here to tell my story.

Traveling south, NY rt. 12. Attempted to slow for a right turn. Signal on, towing an empty trailer approx weight 2000 lbs. Applied the service brake for the turn, pedal went to floor, no brakes. Luckily no incident. Examined the underneath and found that the steel brake lines were routed over the frame on the driver side (underneath body under the driver door. ) when brake line(s) failed, there were no sign of any braking ability. Both the front and rear brake systems were inoperable. The lines had rusted through from apparently road salt or (?), creating a very dangerous situation. Since the incident I have spoke with several other drivers who have experienced the same failure.

Brake line left front rusted thru . Had to use parking brake. . Had truck taken to shop replaced line with stainless steel .

Was traveling on baldwin rd. , clermont county, ohio. I applied the brakes to slow for a corner and the brake pedal went to the floor board. I finally got the vehicle stopped and I realized what had happened. I had a discussion with a mechanic at my dealership while my truck was still under warranty about the condition of the brake lines in the engine compartment, and was told that the rust was just discoloration and nothing to worry about. When I called the dealership on 3/7/2014, I was told by the service manager that he was not aware of any investigation.

I had just had the truck inspected. Was driving home and two blocks from the inspection station when I came to a red light. When I stepped on the brakes the pedal went to the floor. Fortunately I reacted quickly enough to to use the parking brake to stop the truck and keep from rear ending the car that was already stopped. After pulling into parking lot and inspecting the brakes I noticed a puddle under the front left of the truck. Looking closer I found the brake line had rusted through. I returned to the shop where I had the inspection done. He repaired the one line that had burst. I was informed that the other lines looked rusted and ready to burst at anytime.

It was snowing and icy outside. I attempted to brake for an upcoming red light. The brake pedal went completely to the floor. I had very little braking power. I steered to the curb to avoid traffic in the intersection. I jumped the curb and came to a stop against a power pole. Damage to the power pole and to the front of my truck. One of the steel brake lines ruptured. Upon closer inspection, all the brake and fuel lines were severely corroded.

Brake line blew out.

I was slowing to a stop light from residential street,into a main road, and brake pedal went to the floor. I pumped brakes and recovered pressure and stopped. I then proceded on the main road to next light. After being at the light with my foot on the pedal for approx. 15 sec. The pedal went to the floor and truck began rolling forward. I let pedal go and pumped and presure came back and held for about 15 more sec. Then failed again with truck rolling forward. I then drove the truck directly to the shop about 4 miles away. I was informed that a very alarming and common occurence with 99-06 gm trucks occured. My brake lines had rusted out completly. 650. 00 bucks later I'm back on the road. I was told to look at this site and I was amazed at how many other vehicles have reported this problem. I was wondering if gm would be so kind as to at least pick up the cost of the parts which I was told around 100. 00. Wishful thinking I guess.