Brake caliper isues?

[edgemaster]

Guys, just replaced the front pads on my 2009 Edge. The old pads showed a significant difference in remaining thickness. The left pads were, at least, a quarter inch thinner than the right ones, almost down to the metal. Do I need to replace the calipers?

[Cerberus]

2 hours ago, edgemaster said:

Guys, just replaced the front pads on my 2009 Edge. The old pads showed a significant difference in remaining thickness. The left pads were, at least, a quarter inch thinner than the right ones, almost down to the metal. Do I need to replace the calipers?

when you pushed back the pistons, was there a significant difference in the amount of force required? (this would be bad)

were the caliper slides free moving or hung up?

also, the caliper brackets that the pads ride on, did you notice more or less rust on one side than the other?

Did you open the bleeders and push the old fluid out? (you should always do this)

 

If the pistons on one side were very hard to push back, that could be the beginnings of a sticky caliper, or caliper slides that don't move freely, either can be a fair reason to replace the caliper, though a sticky slide is easy enough to cure.

the pad contact surfaces at the brackets (IDK if yours have the shim hardware or not) should be dusted over with a file regardless to knock any rust snots off, so the pads can move freely.

if any rotor surface is even a little rough looking or rusted / rippled, then change the rotors, as that can effect wear rates.

 

"NEED" to replace is a hard judgement to make from a minimal description, and its your life, so its your call, BUT i'd say if you can afford it, never cheap out on brake hardware.

Any doubt, swap it out.

[enigma-2]

When you replaced the pads, did you notice the pins sticking? Did you clean out the old grease before greasing and  replacing the pins? Stuck pins can cause one side to stick and not contact the rotors same as the caliper side. 

 

Only way to tell if the rotors are too thin is the check the specks and mike the roters thickness. Did you notice if the rotors had a lot of deep groves? You can have them turned if there's enough thickness left.