Hi,
I have had this happen twice both on low mileage vehicles.One front caliper and one rear.
The first was on my daughters 1997 Honda CRX (o/side front) when the alloy became very hot.
I was able to push the caliper piston back into the bore by hand without removing the caliper.
In difficult cases you may need to remove the caliper completely for easier access.
Having freed it ,refit the brake pads and wheel and check it turns by hand .Apply foot brake gently to lock the wheel and check if the wheel is binding after pedala is released.
If still binding you can go through the same process again and repeat the proceedure above.
On this occasion it worked ok and my daughter had no more troublel
It has been pointed out to me that corrosion of the caliper bore is a problem on low mileage cars and that as pads wear down the piston travels up in the bore further when it may meet some rust and stick, so possibly consider fitting new pads ,perhaps, as a first option.
If it still binds your will probably need to change the caliper but do this in pairs, if you are considering reconditioned units, otherwise you may upset braking performance.
Some refurbing companies will only do them in pairs anyway
Hope this helps.
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