I added 2.5 gallon of blue def after warming up the truck overnight in garage. Def gauge never moved and after about 80 miles I got a warning that it was going to go to 5mph limit in 100 miles. It is 125 miles to the dealer from my house. An idea what I could do to get the system to read correctly? Thanks for any input.
Ram Heavy Duty Forum
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2019 Ram 3500 DRW def gauge not reading. -40° weather for over a week before problem started. Warning up in garage didn't solve problem.
- Thread starter Gunair
- Start date