Moan is not a squeal or screech, lower frequency broader sound continuous.
Before brake hose was changed; start commute to work in morning, stop and go in town driving, stop at coffee shop after 7 or lights, inching forward in the line up, light brake pressure, moaning starts as brake pedal is released, continued till brakes applied, (I think), etc, drive down highway for 10 mins or so, apply brakes and release, no moaning, off hiway into town again several lights moaning returns
After brakes hose replaced, no problems on morning commute at all. Sat morning, doing errands, in town,
many lights stop and go traffic, stop at one shop, then go to the next place, 5-15 mins travel time between, 5-30 mins stops while shopping, after two or more hours of same, moaning returns similar to before brake lines replaced. I did some medium hard braking to get feel of the truck as I was driving around and as traffic conditions permitted, on the last medium hard braking that I did, the brakes locked very briefly and truck pulled to the right
After both front rotors and pads replaced both wheels, symptoms are the same as after change brake hose, essentially, changing pads and rotors made no difference.
During Sat morning errand running around, feel of brake pedal changes over time, Early in morning, brakes apply smoothly, easy to feather pedal and pressure, as time passes, brakes start to grab a bit, truck runs straight while this happens, Harder braking shows more grabbing, have not had the time to try any systematic hard braking tests.
Typically, I do lot of light braking, no jack rabbit stop and go type of driving
Can't give you much info about back brake shoes other than what I said in previous question as I didn't much of a look at them when my mechanic checked them.
Saturday, April 4th, 2009 AT 9:36 PM