Thread: Weird noise?
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Old 11-10-2008, 01:30 PM
el conquistador el conquistador is offline
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Join Date: Sep 2006
Location: Bardstown, KY
Posts: 163
EBPV
If it was cold outside and the truck hadn't warmed up yet, it may have been your Exhaust Back Pressure Valve right behind the turbo.
look it up and read some threads. cold weather cuts it on.
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