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Hi guys, just writing cause I am in dier need of some serious help, I just put new break pads on my 99 f250 ps. All wheels are disc breaks. Everything went really smooth, but when I drove it my back breaks smoked like crazy and then they started the high pitched singing. Please anybody I need to know what i did wrong. Thank you so much for any advice. I did let the resevoir overflow and then got the fluid to the proper level but they still smoke. Sorry for being incompetant but I need some help. Thanks so much again.
Did the rear pads go on tight? I can't speak for the SD but some rear disk brake systems require a special tool to back out the piston. The parking brake in the rear self-adjusts in (compensating for pad wear) and needs to be rotated back out under pressure. I've worked on both the SHO and SVT Contour, both require this step for the rear brakes.
I would look at the piston again and see if there are 2 indents. The tool for the cars has a clamp that engages the inside of the caliper at the back and ears matching the indents in the piston. You tighten the clamp then crank the piston back with a ratchet. As the piston threads back, the clamp loosens and must be re-adjusted. A few iterations like this will fully retract the piston so you can fit the new pads.
IF this is really the problem don't waste time trying to adjust them by hand (I made that mistake). Just buy the tool, both the clamp and the adjuster head. I got mine at Sears though I'm sure there's lots of them out there.
Most likely you have bad calipers. See which brake is locked! Jack it up and try to turn the wheel. Sometimes on older vehicles the piston get corroded being all the way out with worn pads ,you push it in and the corosion binds the piston in the bore thus the piston won't come back when you take your foot off the brake. Hopefully its only one or two.
this can sometimes happen if you dont get the rotors turned when you install new pads. The pads will hit one part of the rotor more then the other causing it to heat and smoke and therefor causing it to become glazed over and then causing your squeek. if this is the case it should go away in time, you might want to check your rotors for hot spots and make sure the pads are wearing correctly.
I wouldn't because super dutys have a separate E brake assembly that is inside the hat of the rotor (it looks just like a drum brake E brake assembly) and is completely separate from the caliper.
Thanks for the insight BigRyanKP. My comments are based upon and better reserved for cars. I'll have to go take my truck apart now and see what's really in there.
Thanks guys for all the help, I tore it apart again last night and found out that 99f350sd is right. My calipers are bad. Not the pistons but the free floating section, it has two little "cylinders" for lack of a better term, anway was is completly jammed, thus it won't let the pads spread back apart and therefore remains stuck on my rotor. I tried everything to get it loose, but it won't budge, so it looks like I am in the market for a new caliper. Thanks for all your help guys, really really really appreciate it. Thanks again