I have an awd 2004 T6 and when the car is being accelerated there is a distinct whirring dry bearing type of sound coming from what sounds like the front left hand side or driveshaft area. I have checked wheel bearings but they seems ok, given thats exactly what it sounds like. Perhaps the uni joints in the driveline ? doed the front to rear driveshaft spin all of the time in an AWD?? No mechanic has had any luck and basically im just waiting for something to fail to diagnose the noise. Any help or thoughts would be appreciated

 

I would remove the driveshaft from the front to rear and see if the noise goes away.

 

thanks tech, Where do i start to do that,do i need any special tools? do i need to drop the exhaust down to slip the shaft out? The shaft is a 2 piece shaft i noticed,should i take it all out from the transfer case back to the rear diff?

 

Take it all out. I think it is a 5MM allen on each end.
You will have to drop the bracket down some to slide it out.