05 Tahoe with JL4 RPO rear brake issue

[nonickatall]

So it's been a few days and now it appears to be sticking again on both back calipers. Not constantly but enough that after 16 miles they are warm to the touch.

Warm is normal, hot not...

 

[Boostaddict91]

So up until today they were cool to the touch, today granted it was warmer than it's been but they were quite warm, I could hold my hand on them so not scalding hot like before.

 

[nonickatall]

As already written, it depends on whether you brake or not. If you drive 100 miles on the freeway and don't brake, the brakes aren't even warm to the touch. If you're driving normally in city traffic, the brakes are warm and if you're driving downhill with a trailer they get hot. If they are so hot, after a normal ride without braking, i.e. country road, or highway, that you can hardly touch them, then something is wrong and especially if one wheel, or two differ significantly from the others in temperature.

As well you can carjack the car and try if the wheel is free turning, when you're in neutral.

 

[Boostaddict91]

So it happened again today left rear locked up on me and wouldn't fully release, rotor is now blackish blue and strong smell of burning brakes. Pulled abs and traction fuses and it doesn't appear to be dragging anymore. So would this be the module or pump or both? Or would a faulty precharge pump do this if it were say stuck on.

 

[nonickatall]

Abs module for sure.....

 

[Boostaddict91]

Do all modules have to be reprogrammed? Or just remanned ones? Also would the truck having larger wheels be confusing the abs since it thinks it has 17s on it?

 

[Fless]

One thing to check is that the brake hoses haven't collapsed. If one has, it will prevent the caliper from releasing the pads completely.

 

[Boostaddict91]

Since pulling abs fuse it hasn't stuck, it has all new brake hoses.

 

[Boostaddict91]

Nevermind, on my way home this morning from work I got almost home sitting at a stoplight went to take off and its still sticking. So the only hoses that have not been replaced is the two center ones that I can't for the life of me see how to get to without having a lift.

 

[Boostaddict91]

Also I should add that this happens at random if I turn the truck off and let it sit for a few minutes it's fine until it'll randomly do it again.