Vibrating Sound ...when The Ac Is On

[BernardTamHK]

folks ....

who is the likely culprit:

when I have my AC on, and I accelerate "hard", I get a vibrating sound ... something like (frrrrrrr)... like a fluttering sound maybe???. This sound does not come about if the AC is off. This leads me to think its gotta be somethin related.... either:

1) the AC compressor belt? (but i dunno how a worn belt will create such a sound? (i thought it would just squeek)

2) something wrong with the tensioner? (does this part actually get worned?)

3) something wrong with the compressor? (sounds expensive ... but usually this is a very robust part no?)

4) something else unrelated. (no ideas)

This is really weird, cos under regular acceleration, that sound is not evident at all. So what do you guys think?

Thanks ahead folks.

[Tel]

Bernard,

Pop along to your nearest Lexus Dealer & demonstrate your fault to a technician who will tell you what is wrong & what the fix is.

You can then decide the next step.

Tel

[BernardTamHK]

Thanks Tel ... but i was hopin to use Lexus as a last resort ... wanna see if theres an easy/cheaper way to fix. Actually, I never go to the lexus dealer cos they are just a rip off.