To the best of my knowledge, the dealer has fully replaced the actual pump twice now. Only reason I could guarantee the tank was full is because I was filling it up and a little spilled out (after one 2.5 gallon jug and four 1 gallon jugs). I'll definitely keep that mixture in mind going forward...
Interesting! Would that have also affected the gauge as well? Meaning, when it was low I put in over six gallons of DEF fluid, turned the truck back on and the gauge - both times - indicated the tank was still almost empty, hence the "engine won't start soon" warnings.
Hello! I stumbled across this community while trying to find more information on whether others have experienced failures with a 2020 Ram Ecodiesel's DEF pump system. I purchased my truck brand new from a dealership (my first diesel ever) and with only 11K miles on it over the last 10 months...