I ha a similar problem with coolant fluid temperature showing low temperature (0 F) but the oil temperature was normal. Typically the coolant temperature shold follow the oil temperature and after a white it should stabilize when the engine reaches the nominal temperature.
I just replaced the...
Same here, 20214 ECO Diesel, pulling 4500lb travel trailer.
Same failure, the same symptoms.
I diagnosed the problem due to contamination of the Throttle boday Vacuum Pressure Sensor.
Because I was on the road from MI to WI to MN round trip I didn't have the replacement sensor and I just...
With my 2014 RAM Ecodiesel I have experienced the same problem:
Code P203E, DEF guage stock in certain position and eventually the warning came that after 400 miles the engine shuts down.
Root cause: DEF Level Sensor inside of tank failed due to crystallized DEF.
Prevention: use highest...