I am facing a strange "TUK" sound problem (mostly noticeable) with my Vitz 1.0 (2006) when brake is applied at normal/slow/fast speed.This sound comes from the front part of the car and comes only when brake is applied
i have observed that this sound almost always comes (or noticeable) when car steering is 'slightly' turned left or right (90% of times whenever brake is applied in this mode) while it occasionally and sometimes frequently comes if car is moving straight.(50 -60 % of times whenever brake is applied in this mode)
Any ideas what this sound is ? . (I have taken my car 2-3 times to different mechanics to diagnose the problem and strangely this sound does not appear during the test drive...frustrating !)