After a few days of wet weather & very high humidity I got in my Gen 2, and one of the back brakes 'held' for a second before breaking-free as I backed-up. The emergency brake had NOT been set. The new shoes, drums & hardware have only a few thousand kms. I did a 'roll test' on a slight slope: car rolled easily. I tried a few 'panic stops' on sand & gravel: ABS performed flawlessly, no tire locked & skidded. Once out on the road, I stopped a few times to see if either of the rear brake drums were heating-up from a 'dragging' shoe: both were cool. Q: Before I jack up the back and remove the tires & drums to have a look-see, has anyone experienced something similar? If so, what was the cause and/or outcome? Thanks!
That makes sense, but: a) In over four years, it's never happened before; and b) If it's rust, which steel part is sticking to what part of the drum? Thanks!
IF that's what happened, then rust formed on the "swept" surface of the drum. It can bond to the brake shoe friction material. This usually occurs when the parking brake has been applied then the car sits for weeks - months - years in high humidity. Personally haven't seen it on any modern drum brake vehicle that gets any regular use. Have you checked the parking brake cables for free movement on apply and release? Posted via the PriusChat mobile app.
