Abnormal Brake Wear, What to bleed Options

[airforceb2cc]

I changed my pads a few years ago and I just started hearing the wear sensor squeel. I only drive about 5000mi a year so I took the tire off to see what was up. Only one pad is worn down and the rest are still new. My question is, do I just need to bleed the brakes or is there more that I'm not seeing here? If I just need to bleed, do I bleed the three that aren't stopping or the one that is?

Thanks,

Don

[GriffGirl]

Sounds like you could possibly have an issue with the calipers on the side that is worn down. Could also possibly be an ABS issue, but I think that's less likely.

Is there evidence of high heat on the side that's worn down? You'd know by inspecting the rotor; it'll have some lovely colors on it, like burnishing colors (purples, greens, pinks) if it's been exposed to high heat. This could also be an indication of a problem with the calipers. Also, are your brakes pulsating when you brake, or do they brake smoothly?