You might have someone sit in the rear and try to isolate whether it's coming from one side or the other. And is it related to wheel speed? Not sure whether this model has rear wheel bearings as unit with hub or like my 1995 has old-style tapered roller bearings with races pressed into the brake drum. Anyway, if it does seem to be coming from a wheel, I'd check brake adjustment and operation, especially emergency brake, then wheel bearing. The old style wheel bearings are adjustable, but (unlike the front) they usually don't make noise on turning, only with high speed. I've never had a rear hub-type bearing go out on any car.
One thought: Any chance it happens more when gas tank is low? I have a car with a fuel pump that howls (or at least resonates audibly) only when tank is low and gas sloshes to one side.
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Friday, June 27th, 2008 AT 8:26 AM