Pad slides are "grooved" or worn where the pad arms make contact.

Little ruts right where then touch when installed.

I see that may hamper the pad movement.

Wire bushed all contact areas like always and greased.

*^$@&^!!!

 

Glad you found the problem. Regarding a stuck piston, they should compress relatively easily and smoothly with a C-clamp and an (old) brake pad in place as a spacer. Remove the cap from your reservoir as well. A close physical inspection of the piston for cracks corrosion as well as looking at the rubber boot is about the best you can do without dissassembling it.

If the boot is damaged or there is any signs of fluid leakage at all, replace / rebuild the caliper.... period! Brakes aren't anything to mess around with, they need to be done right every time. I clean all of the parts with brake cleaner and then grease all of the contact points with synthetic brake lube. A small wire brush is also handy for knocking off the scale.

Something that I just found recently was a slight leak in one of my rear calipers. I picked up a rebuilt at AutoZone and was surprised that it came with the caliper as well as the whole mounting bracket assembly. I've never seen one come like that before, sure was nice putting in all new clean parts!

Bob

 

if the fluid was comtam. with water wouldnt it effect all the brakes? and not just one wheel.

 

Were talking about the knuckle.
No listed at RockAuto. Will cont to look else where.
Do I need to replace the Knucle? If the pits are hanging up the pad sounds like it
Any it only occurs and locks up on the left side. 2nd time now.

In the mean time I'm goin to gently and carefully grind on edge of the knuckle where the PITS are to smooth it out and grease like hell.

 

Not sure what to tell you about replacing the knuckle, I guess it depends on how bad it is? The bracket I was talking about was for an '03 and it was the rear disc's, but I *thought* there was a similar caliper bracket on the fronts as well? It's been awhile since I looked at the front brakes so I may be mistaken.

I also seem to remember some stainless steel pads that clip in place that the pads slide on. I know that they're like that in the rears. Again, it could be an '03 brake thing.

DrewsDurango98 : You would think that it should affect all wheels, but I can tell you that I chased this on my Mustang for quite awhile with one caliper hanging routinely, even after replacing it twice. Finally replaced all of the fluid and the problem went way.

Bob

 

Just brought up the front brake drawings. 99 is completely different than the 03. Looks like the 99 is part of the steering knuckle assembly where the 03 has the bolt on caliper bracket.

Sorry!

Bob

 

I took a sanding pad on my cordless drill and cleaned it up some more.
A few different hand files to bevel the divots on the pad slides.
New slider bolts and lots of grease.
Hope I'm done here or it's new knuckles for this D.

 

you CAN grind the surface that the pad slides on a little bit in order to free it up you dont need to replace it every single time this happens

 

Got the D back from shop with new main hard line to driver rear. Front Passenger locked up AGAIN. Put reman caliper on and so far so good. Just did not want to spend time rebuilding it myself.

 

+1 Shrp & Hydra