2006 Sierra Brakes Front Brakes HOT!

Buddy67Lincoln · September 30, 2015

I failed inspection for heat cracked pads and warped rotors up front. I noticed they are hot and stink sometimes the last few months. I only drive the truck 3-4,000 miles a year and the brakes are not even 7,000 miles old. I put brand new brake lines on last summer front front to back and its stopped better than it ever did. This summer is started getting sluggish, no leaks, fluid full. Fronts are smoking hot and can't even tough the rims. Now the brakes are cracked. What might it be? Maybe the booster is bad only letting fluid to the front??? Proportioning valve? How do i check? Thanks a lot.

2006 Sierra 1500 4x4 with drum rears and disc front. 6,700 GVW if that helps (Advance Auto asked!)

Gsteffen · September 30, 2015

Could be your brake calipers or maybe a brake flush? And or also could be the diagram in the brake booster. I hope you find out brother

sahls01gmc · September 30, 2015

When my master cylinder went out, it wouldn't release the front calipers. After enough heat built up on the rotors, they would clamp shut and you weren't going anywhere. Then, if I loosened the line for the fronts on the master cylinder, it would release. After I replaced it, have not had a single problem since then!

I ended up replacing the calipers as well. After 250,000 miles, everything needs attention.

Buddy67Lincoln · October 1, 2015

Thanks! I am 84,000 and having brake issues. Usually the rotors rust and corrode from sitting and the salt. I just put a brand new caliper on driver's side not 3,000 miles ago and the other is original. But the driver side was the hottest of the two. When I take it apart i hope to figure it out; thanks for the tips. Might upgrade to performance rotors and calipers from Summit. Not much more than NAPA or Advance OE junk.

Nanotech Environmental · October 5, 2015

Ensure that the brake pads aren't stuck in their mounting grooves. It's a crappy design that causes pads to stick in the grooves after they rust a bit. Once they stick they can stay pressed against the rotors, causing overheated brakes.

The ears on the pads need to be ground down on all sides to prevent this from happening.

Also the slide pins in the caliper brakes need to be serviced regularly as they get water and crap inside, causing rust and then sticking. This also makes the pads stay stuck against the rotors.