i was driving to my mothers house and when i got to a stop light i smelt something burning. i thought it was this ricer next to me but it was a rear brake (driver side). so i pulled over and looked at my caliper and it was smoking really and it was blistering hot. so i checked my e brake to make sure it wasnt on and it was't. sooo i was thinking my caliper was shot or a collapsed brake line. idk what it is i havent looked at my car because i had to drive back to my dads house and take the minivan to my mom's house. so if anyone has any ideaqs of what it could be or if anything like this has happened let me know please.