Gigs Posted December 13, 2017 Share Posted December 13, 2017 (edited) Hi, I have a 2006 mack Mr with le motor. Truck runs good after 8 or 9 hours check engine light comes on. Truck still runs good but once we shut it down it won't restart until trucks sits for a couple hours then restarts like nothing ever happened until it repeats itself after 8 or 9 hours. Took the truck to mack wth light on and they Said it was reading active alternator but that it couldn't be the case cause truck wouldn't start at all.. seems like computer needs to reset itself before it starts up again. Thanks Edited December 13, 2017 by Gigs Quote Link to comment Share on other sites More sharing options...
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