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noticed something weird the other day I was driving into town and noticed it was getting hard to take off like the truck needed more power or like the ebrake was slightly on I get to my aunts house and notice that I can smell and feel heat coming off of the passenger side rear tire so I get closer and notice that the brake is locked up. what could cause this? and another weird thing about a year and half ago this same thing happened to my mother in law as she was driving the truck and me and my father in law replaced the brake caliper and replaced both rotors and pads on both rear tires and I used a good amount of grease on the slide pins so to keep the pins from seizing up. and now it locked up again what could cause this?
Piston(s) can stick (rarely). Another cause: Rear pad on wife's car got cocked and super heated the rotor and wheel. Those were OEM brakes on car just out of warranty. Calipers were fine...just needed pads and rotors. Plus, sometimes the pads are a hair too long. Factory just jams them into place. If they don't fit easy for me I grind the ends off until they do have a little "slop".
Sounds like a sticky piston or collapsed brake line. Pull the wheel off and crack the bleeder screw, does the caliper release? If no you have a bad caliper, if yes a bad hose or master cylinder.
im kinda following you Tom I noticed on that day that it locked up I was in a lot of stop and go traffic and there is a section of soft line that bolts to the caliper where the black rubber is missing in about a 6 to 8cm section and I was thinking that it was the brake line collapsing in that area. but to be honest it hasn't done had the problem well if it has I have not been able to notice it.
about 2 weeks before it had the problem I rotated the tires after noticing the front tires were starting to heel toe on the threads and it was causing a lot of vibrations in the front. and while taking the wheels off all the brakes looked good and still had lots of pad life left in them. but that was when I noticed the brake line
I tend to think it's in the caliper (not the MC) since only one rear tire is acting up. Maybe brake hose...could've been hit by road debris. When you take off the caliper, see if you can move the pads easily...little rust can stick them in place.
it could be rust but here in Alabama we don't really get a lot of snow and ice and the truck wasn't driven that much before I got it. not saying it cant rust but where my father in lives the county never treated his road or any near it when it did ice. and we replaced this same caliper about a year and a half ago with a new one not a reman but I think the warranty might be gone by now