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RE: [T3] Warped rotor


Jacob,

A collapsed brake line does not allow the release of hydraulic pressure so
the piston stays partially extended which maintains some pad pressure
against the rotor.  The caliper and piston may be OK but the bad brake line
is preventing a full release.  The master cylinder can create enough
pressure to overcome the obstruction in the brake line to push the pads
against the rotor but there is not enough "reverse" pressure allow a full
retraction of the pads.

Norman


Jacob wrote:

what causes pistons to get stuck, is it just dirt, or age, or can something
besides the caliper be causing the piston to get stuck? 

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