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4.0L Engine Rough Idle Flash.

979 Views 6 Replies 5 Participants Last post by  NitroTech
There is a Flash available to 4.0L engine Nitro owners that address a rough idle and drop in engine speed upon gear engagement after cold start. It applies to vehicle built before Jan. 17/08. It includes 2007 up to 2008 built Nitro's.
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