I have a 2005 f150 with about 77k on it. I recently replaced both front calipers because the one on the drivers side was sticking due to the rubber boot around the pistons braking down and letting trash inside. I noticed the boots on the passenger side were the same way so i replaced the entire caliper on both sides hoping to prevent a future problem. Everything was fine for a few weeks, but now the passenger side is sticking. I took the caliper back off, cleaned everything, re-greased the pins and bled the brakes. Everything seemed good for a day or so, but I still have the problem. I've heard/read about problem with the rubbers hoses but i have no idea. Any ideas out there.

 

I read on here that you need to use CALIPER grease and only caliper grease when lubing the pins

 

try athe correct grease, but what brand caliper did you buy? napa brand sucks, if not oem then go oem

 

Yeah I think the problem is the new caliper. I got it from advance. Gonna try one from ford