I just replaced the pads on the front brakes this evening. On the test drive there are times when I lose pedal pressure and there are other times when the brakes seems to be engaged against the rotors and there is major resistance.

I have done brakes so many times, is there something special I missed that I should have done on my 99 F250 diesel? I did not unhook any brake lines so I did not feel it necessary to bleed. Should I have bled?

Anybody know how often the rotors should be replaced or at what thickness?

Thanks a bunch,

Mark

 

sounds like it may be something simple like a burr on the backer plates.did you by chance clean the ears that fit in to the retainers,with a grinder? i always do this as sometimes the plates are not cut clean enough to move freely in the retainers.just a thought.

 

When you pushed the caliper pistons back in the caliper did you make sure you did it straight ? Because if you don't you can create a burr or blow out the o-ring within ,also the glide bolts can get dirty and need some dielectric grease .
Are your rotors true ? I thought diesels use a different type of brake boost ,you might want to chk that.

Rich

 

make sure the metal clips that the pads slide in are clean, i use a dremel tool with a steel brush attachment to clean them off(i think this was covered above). one other very important thing where the guide rods fit into the caliper they are keyed(flat on two sides and round on the other two) you have to make sure to get the flat side of the head on the end of the rod lined up with the flat side(cut out) on the caliper, other wise you will get the caliper on kitty-wampus(yes that is a technical term) it is very easy to miss this, you cannot just bolt the caliper back on, you must line it up