[gt_cristian]

Hi all,

I have a 2013 LT with rear disc brakes. I saw my right rear disk starting showing rust and I was going to replace the discs and pads because I am a little over 50,000 miles. What I ended up finding out is that the rear right pads are worn out badly, while the rear left pads look almost new.

I have an A/T so I barely use the handbrake. But I am thinking something had to be malfunctioning for a while for this to happen. Any suggestions on how to troubleshoot/fix this before replacing my rear discs and pads?

Thank you,
Cristian

 

[gt_cristian]

Hi Tomko,

My rear right brake disc is in bad shape, rusted, and the brake pads are almost finished. The rear left side looks great, I would say those pads look almost like new, same for the brake disc.

I have been using the car for 4 years, 50,000 miles, a lot of highway.

So I am thinking, something had to be causing most of the rear braking to take place on the right side, and very little on the left side. But I am not familiar what could cause this or how to troubleshoot this issue.

Thanks,
Cristian

 

[gt_cristian]

[FONT=&quot]This is what I found from my research (in my care, this happens with the rear breakes):[/FONT]
[FONT=&quot]
Both pads on one side thinner than pads on opposite side

[/FONT]
[FONT=&quot]This is generally caused by a hydraulic problem, although it may also be caused by a sticky piston.

More often, the cause is a restriction in the brake hose on the opposite side.

The side with the premature wear may also have a brake hose with internal damage that acts like a check valve, preventing the release of the brake fluid.[/FONT]
[FONT=&quot]
It's also possible that there's a hydraulic restriction higher up the line than the brake hose on the side with the pad wear. For example, a faulty ABS modulator may not allow the release (return) of pressure on that side.[/FONT]
[FONT=&quot]
One other possibility is air in the hydraulic line on the side opposite the pad wear.[/FONT]

 

[gt_cristian]

Hi guys,

So I took my car to a shop and they replaced all 4 discs and pads and flushed my brake fluid. They did not find any issues with that side that was rusted. The caliper works well according to them.