It seems I'm having a problem with seized brake caliper pistons. Every so often, I have one corner seize up. No rhyme or reason to it. Both rears, and both fronts have seized up at different times. I'm in WA state. I snowmobile in winter so I'm in the passes. I assume they put something on the roads to melt ice. I'm not sure if its salt or some other chemical. I have this problem sometimes once or twice a year. I've taken to removing the calipers to grease the slide pins every summer but the slide pins are not the issue. The pistons seize in the calipers. I was told by a Ford tech I know that I can switch to DOT 4 which he says doesn't attract moisture as much as the DOT 3 does. I have a Jet Bleeder and I have changed my fluid a couple times. I have two questions.

1. Do the 99/03 Superduty 4x4's have a historical issue with this? Because I sure have. I've owned it since 2012 and I have 143,000 miles on it.

2. What about performance type aftermarket calipers that have a better design? If there is such a thing. I'm looking at these. https://realtruck.com/p/power-stop-z...sb-kc1906a-36/ but I'm not sure if they aren't just fancy coated OEM calipers that will do the same thing. This issue is a pain in the butt when it happens and has screwed me up more than once. I'd like to find a solution. I most recently a couple weeks ago seized the Rt front. This caliper was replaced about 20 months ago for the same problem. I changed it out and I'm going to disassemble it to see what happened. Then I think I'll get a kit to rebuild it and put it on the parts shelf for later use.

Has anyone found aftermarket calipers that don't seize up and that they are happy with? Any comments or ideas???

 

I still have my original calipers. I will go with motorcraft ones if needed. I would stay away from aftermarket ones.

 

I still have the originals on both our trucks...but we are in south Texas. I was having a similar issue that wound up being the brake control module under the drivers side battery tray. Before this I rebuilt the drivers side caliper and once I found the issue, I went ahead and bought another rebuild kit and did the passenger side. You might look into finding a couple rebuild kits and tearing them apart...

 

Where are you getting the parts from?

 

Man I wouldn’t even bother.

I was at a stop for a train here in Washington and went to take off and had a front one seize on me.
Mines a 2003 f-250 5.4 long box disc brakes front and rear. Seized around 170kish?

Napa fully refurbished including all hardware was like 40$!? Blew my mind that’s all they wanted. Swapped out both my fronts re bleed and haven’t had a problem since. 80$ for OEM ford rebuilt ones is a steal. That’s the way I’d go.

Also at least in the Pacific Northwest side of the state, it’s all chemical spray, nasty stuff, loves to eat wiring that’s exposed.