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I posted this earlier. weather the van is in gear or out of gear, driving or braking, as soon as it pass 50 mph it starts to make clunking noises from under the engine. not particular to one particular place but mostly from under the passenger footwell, then under the engine itself and sometimes a quieter noise from under the driver seat area. the noises sound like a chipping of metal or a quick and short grinding noise.

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Q: Why Immediately after passing 50 mph could you get rattles from under engine?
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