Question about 1998 Ford Explorer

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I have a 1998 ford explorer and when I drive you hear a tumping noise. What could it be?

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  • dale blankenship Sep 06, 2010

    Could be a lot of things. Do you only hear it when the car is moving, or do you hear it anytime the engine is running? Does the thump rate increase with engine speed, or with car speed? Is it a metallic banging, or a more muffled thud, like someone stomping in tennis shoes?
    Does anything make it louder, or make it go away? (Pressing on the brakes, for example?) Do you have any unusual vibration?

  • lynnette_gea Sep 06, 2010

    It only makes the sound when I am driving and it does not get any lounder as I go faster. I already replace both sides of the wheel bearings.



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You could have something as simple as a plastic trim piece that has come loose or cracked and is hanging and is flapping in the
wind when you drive it down the road. There are several other possibilities including a bad strut on the front end. You may also have a knot on the inside of one of your tires that can make noise. For your safety you should also inspect the brake calipers to make sure they are not "loose" since this could cause a very serious accident.

Posted on Sep 06, 2010

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