Strange Humming/vibration From 30 - 70km/h

[QRI05E]

Hey guys, in the past few months i have notices a very slight vibrato-hollow-humming noise from the front (possibly passenger side) of my car at only 60 - 70kms/h any speed above that or under the noise and vibration and noise disappears. This slight vibration can be felt in the steering and peddles but is almost not noticeable. I have tried the following:

Accelerate to 60 – 70kms, put car in neutral and coast

Accelerate to 60 – 70kms and hold the clutch in to see if its flywheel related

Accelerate to 60 – 70kms and try sudden braking

My wheel alignment is spot on

The wheels are ballanced

Nothing has helped...

One thing i think maybe related is that about 3 months ago i got the disc's machined and new brake pads put in and my car has also developed a "slapping" sound (can be quite loud at times) frpm thr front passenger side when i apply the breaks firmly... I wont go back to that mechanic ever again cause he just seemed too dodgy for my liking...

What can it be??

Regards,

Sarkis

Edited February 7, 2007 by QRI05E

[QRI05E]

On the way home from work i tried to take more observations regarding the vibration... and it seems to start as low as 30km/h but barely noticeable and is most audible at 60km/k.

It is mainly felt a the brake/clutch/accelerator peddles as well as foot rest… the vibration variates in frequency for eg.

Sometimes it vibrates:

_ _ _ _ _ _ _ _ _ _ _ _

Othertimes:

____ _ _ _ _ ________ _ _ _ _ ________

Or

_______ ________ _______ ________ ________

It’s the kind of hollow sound that a tyre may make if there’s a bubble on the tread but with extensive inspection the 2 front tyres are as new.