My Truck: Seized Caliper

Ever since I bought my truck, a 1990 Ford F-250, the brakes sounded bad when stopping. It would sound like I was grinding to a halt. I figured at first that it was just rusty rotors because it had sat for a while, but it didn’t go away.

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After six months I finally got around to taking a look at the brakes. I took off the left front wheel and found what I expected, a rotor with a not very nice surface. The brake pads were almost new, though.

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It was when I took off the right front wheel that I knew what was causing the noise. Compared to the left side, the rotor looked nice and shiny.

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The reason it was nice and shiny, however, was because there was almost no material left on the outside pad.

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When I looked at the caliper and pads I found the real problem. The caliper pistons had seized, and as a result, the inside pad had been scraping metal-on-metal for a long time, to the point where it had worn down the rotor to half the original thickness.

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I had already bought new pads and rotors, but now I knew I also needed calipers. I’ll be posting How-To posts about replacing the rotors and pads in the next few weeks.


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-Dan

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