When the speed is less than 10 mph and I have a passenger, there is a creak in the rear of the vehicle. As the speed picks up, the creak disappears. Without a passenger, the creak is barely noticeable.
Creak at low speeds on 2002 Ford Explorer
Suspension creaks can be very hard to pinpoint. If you can hear the noise when pushing down on the rear bumper have a someone try and listen to where the noise is coming from. It could be a worn shock or bushing causing the noise.
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I had an annoying creaking in my 02 Explorer. Get under and spray the suspension components with WD-40. Took care of my problem.
I found the spare tire was loose which caused this noise.