Originally Posted by dlennick
Hi, we are newbies and thought we had done our towing research, but notice when we are towing up or down hill, there is a very strong burning break odor. We have a 2015 Sierra Max 1500, towing a 2013 Wildwood 27RLSS. Do we have our trailer break system too high? Also since we do not have a weigh station anywhere close, how do we know we are within weight limits. Any help would be greatly appreciated.
The question is, why do you think it's the trailer? If you can smell the odor going up/down a hill, you would be moving forward and the odor would be behind the trailer, not in the cab. If you smell the brakes, can you see one of them smoking? Have you been able to safely pull to the side to check your hubs? If one of the brakes is sticking, you should be able to feel it to be hot with your hand on the hub. You may also want to check for a loose hub or a wheel bearing that would cause the brake on that wheel to engage or possibly even loose wheel lug nuts.
For a moment, let's assume it may be the TV and likely the front brakes because you can smell it going forward. If you apply your TV brake hard, do you get a pulsing or shudder in the steering wheel with a load (TT)? I mention this because GM had a run of bad disc brake pads. When the brakes were applied under load, the rotors would warp, causing the shudder. Your 2015 TV should have disc brakes front and rear, so you need to check all of them. I had that problem and GM replaced the pads and rotors. Note, this was on a different year model.
Just throwing out some thoughts.