I have a 2003 IS300 5 speed. I am having an intermittent problem with my clutch pedal. At very slow speeds, or while I am stopped, I turn the wheel and with every full revolution of my wheel, I get either a pulsation in the pedal or a sensation that feels like a rubbing behind the pedal. Has anyone experienced this? I am at my wit's end- it has been to the dealer 3 times to no avail. HELP!