Rust jacked brake hose

[jerry moss]

we see that happen at the shop where I work, sometimes it will allow fluid to pass through the hose to the caliper but won't allow the caliper to release since no pressure going backwards. easy way to confirm if it's a caliper sticking or the hose not allowing it to release, just open the bleeder, if fluid squirts out and the rotor turns freely afterwards the hose is bad, if the rotor won't turn and no fluid squirted out the caliper is sticking. if you're still not sure replace both of them, better to be safe than sorry with the braking system.