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Transmission? Or Throttle
in Mack Truck Q & A
Posted
On our New truck with 30000 miles on it we are have a reoccurring issue. We will be driving at about 70 mph and the RPMs drop about 150 for a second or two. No code show up but with it being new don’t believe this should happen. It is a 2018 Pinnacle with M-drive transmission. If anyone else had had this issue or knows what it is please help.