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  1. Diesel Promaster Discussion
    2014 159" Diesel 52,000 miles. Wondering if anyone has ever had this happen: The DEF Low Refill Soon message appeared, but the tank is full. My mechanic (not a dealer shop) is able to imitate the sensor with the scan tool so we are pretty sure it not an electrical issue. Could the tank level...
  2. Diesel Promaster Discussion
    I have been driving out of warranty with "Particulate filter differential pressure too low" for about 15k miles, not taking it into dealer based on bad experiences while under warranty, and emissions-related experiences of others on this forum. If i had known how easy that sensor was to access i...
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