The grocery-getter I have in mind is our third-generation, base-model, automatic-transmission Subaru Impreza. It really is used almost entirely for low-speed local runs. The primary driver, my wife, doesn't do highways, so the car almost never sees speeds much above 40 mph unless I'm driving us on a vacation trip.
Given that this is a front-heavy car, with (I'm assuming) a front/rear proportioning valve of some kind, is it possible that the rear calipers don't even move under light braking? I'm thinking that the proportioning valve might not reach the threshold of letting fluid flow to the rears.
As you might guess, my curiosity is prompted by having just needed a comprehensive rear brake overhaul due to the calipers having frozen up.
(Oh - as you might also guess, we pretty much never use the parking brake.)
Thanks,
chazix (a lapsed gearhead)
Given that this is a front-heavy car, with (I'm assuming) a front/rear proportioning valve of some kind, is it possible that the rear calipers don't even move under light braking? I'm thinking that the proportioning valve might not reach the threshold of letting fluid flow to the rears.
As you might guess, my curiosity is prompted by having just needed a comprehensive rear brake overhaul due to the calipers having frozen up.
(Oh - as you might also guess, we pretty much never use the parking brake.)
Thanks,
chazix (a lapsed gearhead)