Front Caliper issues?? - Help please

[everson38]

how far is the piston moving out?
the disc that is rusty - is it rusty both sides?

during use the pistons don't have to move more than a couple of mm

if one side is moving out a long way (maybe 10mm or more) there won't be enough fluid in the system to make the other ones move.

you say the passenger side piston moves, and the passenger disc is rusty - the side thats not working correctly should be the rusty one

usually it's the outside that gets rusty when the cars been standing (overnight etc) if it doesn't clean off it's usually down to the caliper sliders sticking (unless you've got 4 pot calipers - I've not looked at a GTC brakes)

Well on the 'Shiny' drovers side the piston comes out all the way. (I don't press to. Much as don't want it to pop out). The rusty passsenger side was not coming out at all.

The pic attached is of the rusty side.

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