First, a wheel bearing is usually noisy when they go bad. If you don't hear anything, chances are they are fine. As far as your problem, check to make sure motor mounts are in good condition. A broken or worn mount can make a clunk when the engine is first accelerated. Also, safely lift the front of the car to see if the brakes are releasing as soon as you let off the brake pedal.
Let me know what you find.
Joe
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Sunday, April 14th, 2013 AT 7:40 PM