2004 Toyota Sienna 6 cyl Front Wheel Drive Automatic 80,000 miles
Our Toyota has a humming sound that becomes noticeable at 32 mph and increases in sound as you accelerate. The sound appears to be coming from the left front side of the vehicle. The toyota dealer said it was the left front axle hub bearing. I ordered the left front axle hub bearing, front axle hub sub assembly, front axle hub nut, snap ring, and bearing dust deflector from Toyota and replaced all these items and torqued to specs. After replacing the humming sound is still present. Additionally the vehicle has new tires but to isolate even further I rotated all 4 tires and the sound is still present. Any ideas would be greatley appreciated.
Saturday, November 6th, 2010 AT 10:32 PM