what so i do to figure it out
i have a 2000 jeep grand cherrokee and when i first start the jeep i have know noise when but when i step on the gas pedal i hear a loud rattleing noise but only when the jeep is moving when im idlle i stp on the gass and i hear no rattle
Check for bad universal joint on drive shaft.
check your exhaust system for broken hangers or bent pipes
could also be the metal casing around the converter on the exaust
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