really awful
Typical Repair Cost:
Average Mileage:
83,450 miles
Total Complaints:
3 complaints

Most Common Solutions:

  1. brake line replacement (2 reports)
  2. not sure (1 reports)
2004 GMC Sierra 2500 brakes problems

brakes problem

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2004 GMC Sierra 2500 Owner Comments

problem #3

Aug 092015

Sierra 2500 LS Duramax Diesel

  • Automatic transmission
  • 89,000 miles


I believe GM should recall this vehicle for this problem.

- Roger K., Midland, MI, US

problem #2

Aug 222013

Sierra 2500 6.0L

  • Automatic transmission
  • 29,300 miles

Got in my seldom used truck today. Started her up, turned around in the driveway and when leaving the driveway my brake pedal went to the floor. Returned to my parking spot and I can see brake fluid coming from the VERY RUSTED steel brake line. It runs above the frame on the left/driver's side. A total PITA to get access to - this will not be fun and or cost me $$+ to get fixed.

I never understood how any manufacturer can get away with not using SS lines on brakes. It's not like there could be something MORE dangerous than losing your brakes on the road, but there it is. Thanks GM; I will NEVER buy a new GM vehicle.

- 04_2500hd, Avon, CT, US

problem #1

Mar 022012

Sierra 2500 HD 6.0L V8

  • Automatic transmission
  • 132,000 miles

Alwasy clean salt off truck asap. Truck is only 8 years old but while comming up to a traffic light towing a 6,400lb 36foot goosneck trailer the light turned red and I got on the brakes. Pedal went to floor. The line going from the master cylinder down under the driver to the ABS box lower inside port blew and let me going through the intersection.

I was very lucky to not have a car in front of me to hit in the intersection and that the light just turned red so there was no other directions of traffic to hit. I was also saved from the fact that I was towing a light trailer with 3 axles of new brakes just installed providing enough stopping power to stop me eventually to keep from a catastrofic accident. In no way is 8 years close tp the acceptable life of brake lines on an all road truck that was cleaned and maintained properly. I ended up buying 2 rolls of 1/4 brake line, fittings, and brake fluid. Did the repair in my garage in one weekend taking my time and spend under $50 I only replaced the front 4 brake lines and will be fixing the rear 2 soon.

- Mark G., Hackettstown, NJ, US

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