Re: Freeing rusted brake caliper pins
First off go buy some new pins.
Trying to twist them usually works better then hammering on them. If you beat on them you will spread the pin like a rivet and it will acutely get tighter in the hole. Grab it with a pair of vise grips and try to loosed them by twisting the pin back and forth. If all else fails cut the pin in haft and try each end.
Lube the new pins with silicon brake grease when your reinstall them
Bad news, rusted brake pins won't cause a pedal pulsation. Could be rust on the rotors, if this is the case it's usually best to replace them.
Mike
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