Fitted UK Spec brakes (Toyota ones ) 3 - 4 months ago.
Over the last week have got symptoms similar to warped/cracked disk,kick back from pedal.
It is not constant and varies in intensity quite a lot.
Car does not pull to either side.
Occurs when braking from all speeds unless pedal applied very firmly when it doesn't
All disks approx the same tempperature
Nothing visual (but not had proper look yet)
Caliper bolts only checked by hand today, will check properly tomorrow
Had front (only)wheels balanced, has made no difference
Could a sticking piston cause these symptoms?
Any other ideas welcome as very inconvenient to take disks off and send them for checking at the moment?