Hello Scotty,
I have a 2013 Ford F-150 4x4 with 89,000 mi. I bought it a few months ago and have had only minor issues with it. One of the issues lately is that the brakes usually squeak whenever I'm moving in reverse (which I don't pay much attention to). But, this morning, when backing down a hill in my driveway, the truck came to an abrupt stop (felt like I hit another vehicle and scared the heck out of me!). I got out of the truck, nothing was there. Check my caliber brakes for missing bolts, all of them are there and appear to be in place. What gives?
Are any ABS lights on? Any ABS or traction control codes?
No codes. Ran the scanner tool as well.
Did you check the pads?
Brake rotors and pad were replaced at a garage just prior to buying it this past October. Checked the caliper bolts-all tight.
Could it be e-brake related (loose pads inside)?
As @Doc suggested, you should check all the pads and act accordingly.
Check your pads. If they are nearly worn out, the pistons in the calipers go past their normal stopping point and get stuck due to corrosion. I'd get some rebuilt calipers and new pads and replace them.
I took the rear disc brakes off. One of the pads for the e-brake had fallen apart. Replacing with new. Thanks everyone!