2004 GMC Sierra brakes problems

Filed Feb 5, 2016 · Airbags, Brakes · 154,000 miles · WI

I have a 2004 gmc sierra and all of a sudden my airbag light and ABS light came on took it in to have it looked and the airbags are not communicating with the sensor and they would have to go more in depth on the ABS but to go more in depth they charge $80.00 an hour just to be able to figure it out. I have seen similar responses on the airbag light for this vehicle please help.

Filed Jan 7, 2016 · Brakes, Electrical · 120,000 miles · PA

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.

Filed Nov 23, 2015 · Brakes · 111,500 miles · PA

Rusted brake line

Filed Jul 6, 2015 · Brakes · 41,690 miles · PA

I experienced a brake line failure on my 2004 gmc sierra crew cab pickup truck. I was traveling at a slow rate of speed and coming up to a traffic light and the brake pedal pushed all the way to the floor board. The rear emergency brake was used to stop the vehicle. I found the area around the brake module, in the frame area under the driver's area, soaked with brake fluid and corroded brake lines.

Filed May 12, 2015 · Brakes · 86,150 miles · VA

On december 28, 2014 I was driving my 2004 gmc pick-up truck and suffered total loss of brakes. This happened as I was approaching an intersection and I narrowly avoided an accident. There was no warning prior to the brake failure - no warning light was on, and no gradual decrease in braking ability. After the failure, I determined that there was a sudden and massive leak of brake fluid from a rusted brake line. Previously, in april of 2014 I had my pick-up truck serviced at an authorized gmc service center. At that time, the service ticket referenced condition of brakes to be in yellow requiring future attention. It was my understanding that the issue at that time was brake rotors would need to be replaced at the next service interval. There was no mention of any potential danger from brake line rusting/failure. Upon researching vehicle issues on the web I have discovered that there seems to be an inordinate number of brake line failures for vehicles of my type. It appears gmc has refused to issue a recall. I had my vehicle towed to the gmc dealer and had them replace rusting brake lines ($801.64). The replacement gmc brake lines installed are of a different (improved) design - they have a painted/protective coating on them, which appears to be an attempt to address past premature brake line failure issues.

Filed Apr 7, 2015 · Brakes · 92,546 miles · PA

Again. My truck had complete brake failure again due to corrosion on the steel lines. This is an otherwise nice truck with brake lines that look like they've been in the ocean their entire lives. Gm dealer quoted over $1,700 to fix. Gm owned warranty company refuses to cover repair. Gm customer service tells me to pound sand.

Filed Jan 11, 2015 · Brakes · 79,200 miles · TN

Driving on west stone drive kingsport, tn, a vehicle cut me off trying to get thru a traffic light, I locked my brakes down hard as I could, I could feel the ABS system working, I was able to stop about 12 inches from the other vehicle. When I pulled out after the light changed to green, I was traveling down a slight grade, depressing my brake pedal lightly, the pedal went all way to the floor board.. I took the truck to a local shop to have it checked, one of the brake lines behind left front wheel had ruptured. When the mechanic started the repairs, he called said all lines on this truck were extremely rusty, (he asked what I wanted to do) I said fix it right. In making the repairs all lines were replaced.. I have pictures of all lines that can be sent. I also have all of the brake lines that can be looked at and or analyzed.

Filed Jan 10, 2015 · Brakes · 142,385 miles · MI

After having a gm dealer perform oil change, perhaps 1/4 mile down the street from their facility encountered traffic stopped at an intersection in front of me. Applied the brakes to find that they felt mushy, and before completely stopping went to the floor. I used the parking brake to bring the vehicle to a stop without crashing into the cars in front of me. When the light turned green I nursed the vehicle into a parking lot using the parking brake and looked under the hood and could find no issue, the weather was very wet and sloppy, and light snow so I could not see the tell tale fluid leakage from a brake line. Because I had lost all braking I assumed that the master cylinder had failed. I had changed all calipers, rotors and pads several months before, and at 140,000 thought that the master cylinder failing would be unusual, but the only thing that would cause complete failure. After replacing the master I attempted to bleed the system only to find that the problem remained. Now that the under hood area was completely dry it was clear that the failure was rust through at a point the line to the left front wheel was in contact with the frame rail below the master cylinder. The oil change had probably caused movement of the line resulting in the failure. Moving some of the other lines made it apparent that all of the hard lines were shot. The slightest movement caused them to fracture. Worse than that, they were all encased in a "shell" of rust from one end to the other, concealing how fragile and dangerous they really were. Repair estimates were anywhere from $800 (local mechanics) to $3,400 (gm dealer). Lovely. I had a 1994 s10 blazer that I sold a couple of years ago with 290,000 miles on it, original brake lines and all. Changed the lines myself in a weekend for $120.00, the gm parts guy new exactly what I needed and had the "kit" in stock, what a surprise.

Filed Nov 27, 2014 · Brakes · 74,000 miles · PA

Started out when brake fluid started leaking from the truck. Brake pedal went to the floor. Luckily did not happen when was driving. Found out the brake lines were rusted and was leaking and the repair cost would be over $1200. Looking on the internet this looks to be a known for certain gmc/chevy year trucks.

Filed Aug 27, 2014 · Brakes · 96,056 miles · NY

I was driving in a 40 MPH street when I noticed the traffic signal was about to turn red when I applied the brakes the pedal when down to the floor I lost all brakes I slowed down by down shifting the transmission and applying the emergency brake. When I pulled over there was brake fluid leaking all over under drivers side door. Upon inspection I noticed the brake lines rusted out and lost all fluid. I could have been killed there was no warning. I needed to have my brake lines replaced I believe this is a start of something bad if gm doesn't act on this problem.