wonder if any of u knowledgable chaps can help me, got a classic wrx with tarox discs on the back with sti calipers and one of them has just decided to become noisey, only after driving for 20 minutes or so it starts and is quite embarressing as it groans and squeeks!!! anyone got any ideas???

 

How old are the pads? Have you checked them?

 

yeah pads seem fine wondering if the caliper is siezed?

 

disassemble, clean, copper grease on contact areas.

 

when this happens jack up the wheel and rotate it to see if it's binding could be a sticking piston -also feel the heat from the wheel and compare it to the others