Noisy front bearings are real common. It's also common for noise to travel and be heard away from the source. The only way I've found to determine which one is noisy is to run it in gear on a hoist and listen with a stethoscope.
A different approach is to use a "Chassis Ear". You might be able to borrow or rent one from an auto parts store that borrows tools. It is a set of six microphones, a switch box, and headphones. You clip the microphones to suspect points, then drive around while listening with the headphones. You can move the microphones around to zero in on the source of the noise. Be aware that many mechanics have never seen or even heard of this tool. Suspension and alignment mechanics use it to find rattles, squeaks, and other noises.
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Wednesday, September 19th, 2012 AT 11:12 PM