adamhinson

Having an issue with my brakes and hoping someone has some insight on the matter. I recently started feeling drag on my truck after driving for 5 to 10 miles, almost as if the parking brake was engaged. After confirming that it wasn't, I pulled into a friends shop and discovered that all 4 calipers were grabbing as if someone had their foot on the brake. After checking several things I decided to bleed the passenger side caliper to relieve the pressure and as soon as I cracked the bleeder valve pressure at all 4 wheels was relieved. Only problem is that I don't know what could cause this or if it'll happen again. Does anyone have any thoughts on the matter?