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2016 Ram 1500 RCSB Express
5.7 w/6 spd
20,000 km

First start of the morning, average summer temps.

Engine starts right up but as idle lowers to normal idle speed the engine misfires and the engine revs to 1600 to compensate for about 5 seconds and then lowers back to idle. It does this cycle 1-2 times and then it's golden the rest of the day.

Only does it first start of the day.

Nothing but Shell 91 since new and Valvoline full synthetic 5W-20 and Mopar filters.

Any ideas ?
 

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I'm not sure, but if it was my truck I would have the dealer take care of it under warranty.
 
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