GMC Sierra 1500 owners have reported 39 problems related to brake master cylinder (under the service brakes category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Sierra 1500 based on all problems reported for the Sierra 1500.
The contact owns a 2006 GMC Sierra 1500. The contact stated that the master cylinder failed on his vehicle. While driving at an unknown speed, the brake pedal extended to the floor and the vehicle failed to stop. The contact rear ended another vehicle. There were no injuries. The front end, hood, and grill were damaged. The vehicle was towed from the scene and returned to the shop it was repaired at three months prior to the crash. The technician stated that the master cylinder was the cause of the failure. The contact has called different GMC dealers and repair shops to purchase a master cylinder, but there are none in stock. It would take a week for the part to arrive so that the repair can be completed. The failure mileage was 50,000.
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The contact owns a 1999 GMC Sierra 1500. While driving approximately 45 mph the contact applied the brakes and the left front and right rear wheel exploded. He stated that the brake pedal extended to the floor. He carefully drove the vehicle to his residence. The vehicle was towed to the mechanic where it was purchased. The mechanic replaced the both brake lines to the master cylinder and the abs unit. The failure mileage was 79,686 and the current mileage was 80,058. Updated 08/27/10. Updated 08/30/jb.
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1999 GMC Sierra 1500 5. 3 - I had brake lines fail on 3 separate occasions. First was a hard line to the front drivers side, happened in my driveway so no crash. Second was a line coming from the master cylinder. This was while towing a trailer and the trailer brakes managed to get us stopped even though we were on a hill. The third failure was stopping at a light, luckily no one was in front of me and I had plenty of stopping distance. After that I replaced all of the remaining lines on the truck. No problems since.
Contact states: when he has a load on this truck the brakes feel like they are failing. When he applies the brakes, they go to the floor. Dealer replaced the master cylinder, but it didn't fix the problem. Sometimes when sitting still and just idling caller can press on the brakes and they will go to the floor. General motors says this is a normal occurrence.
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all problems of the 2000 GMC Sierra 1500
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