An internally deteriorated brake flex hose will cause a calaper to hangup. The brake fluid can't return at brake pedal release.

 

Heck i'm redoing most of them once a year. Been using OEM components to so go figure. Dealer now thinks something is in my brake lines.

 

Same problem here, changed rear calipers, rear pads, rear rotors, rear lines. I'm going to try changing the slide pins but I doubt it will work. I want to know more about those two objects on my master cylinder that have wires coming from them, is this some sort of valve that could be causing my problem? The master cylinder is the only thing I haven't replaced along with those two objects.

 

Has anyone tried screwing around with front / rear proportioning on these trucks to see if that helps? Maybe make the back brakes work a little harder to keep them "loosened up"?

 

I'm on my 3rd set of rear calipers, 125k miles.

Keeping the pins clean and lubed seems to help, but here In the rust belt calipers stick.

 

I replaced calipers many times, had the same condition as you guys, however once I replaced all 5 rubber brake lines with braided SS, I've never had a problem since.

 

I live where they treat the roads for snow and ice, both salt and deicing chemicals. I've always serviced my brakes every spring, appx. every 15K miles. Clean them, lube the pins and slides and wipe the calipers and brackets down with old ATF, it has a rust preventative in it(wipe the frame down while you're in there). I've never had issues with sticking or locked calipers. Ounce of prevention, etc, etc.

 

I clean and lube my calipers fall and spring, when I swap snow tires on and off. Pistons themselves seem to be the failing part. Like I said, I wonder if a bit more load was put to the rears all the time, would they stay freed up?

Benchwrench, I'm thinking going that route when I redo braking system here soon.

 

Benchwrench, how long have you had the braided steel lines, what brand are they, and is your truck lifted?

 

Slide pins. Clean and grease them. Easy job that prevents a lot of hassle (and $$).

 

 

They're made by Crown Performance, Without looking at records, I think they've been on the truck for at least a year or better. Completely changed the braking experience. A must do mod.
Not really lifted, but has a 2" leveling kit installed since it's a 1 ton. All that was modified was to lower the brake line brackets a couple inches on each side. Easy Peezy lemon squeezy.

The thing about stock rubber brake lines is they will expand like any rubber hose, making pedal feedback feel very spongy by expanding the hoses thus farther pedal travel.

 

When you say you replaced rubber brake lines. Are you talking about the actual brake lines to the ABS? Or, are you talking about the hoses to the caliper?

 

On this particular truck I am referring to the lines going to the caliper plus the one going to the rear end, there are only 5 of them total, all lines going to the ABS (as far as I am aware) are metal tubing.

They were replaced with Russel (I think) steel braided.

I no longer have the truck I sold it back in 2018. Turns out the issue was the ABS sensor mounted in the top of the rear differential. It was at the time about $100 part.