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TANK, Diesel Exhaust Fluid: Cleaning: Cleaning

WARNING: This page is about a different car, the 2011 RAM Pickup and 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

If diagnosis has confirmed the Diesel Exhaust Fluid (DEF) UREA is contaminated the following should be followed for cleaning the DEF tank.

  1. Remove the DEF tank level temperature sensor. Refer to SENSOR, Diesel Exhaust Fluid Level/Temperature , Removal .
    Fig 1: DEF Level/Temperature Sensor Filters
    GC0143801Courtesy of CHRYSLER LLC
  2. Clean the DEF level/temperature sensor filters (1).
  3. Drain the contaminated DEF from tank.
    NOTE:

    If it has been determined that a petroleum based liquids were added to the tank flush the tank with a dish soap.

  4. Flush and clean the tank with tap water.
  5. Remove and discard the DEF filter. Refer to FILTER, Diesel Exhaust Fluid, Removal .
  6. Remove the DEF pressure line. Refer to LINE, Diesel Exhaust Fluid Pressure, Removal .
  7. Remove the DEF supply and return lines. Refer to LINE, Diesel Exhaust Fluid Supply, Removal .
  8. Flush the pressure, supply, and return lines with tap water.
  9. Install the DEF supply and return lines. Refer to LINE, Diesel Exhaust Fluid Supply, Installation .
  10. Install the DEF pressure line. Refer to LINE, Diesel Exhaust Fluid Pressure, Installation .
  11. Install a new DEF filter. Refer to FILTER, Diesel Exhaust Fluid, Installation .
  12. Install the DEF tank level temperature sensor. Refer to SENSOR, Diesel Exhaust Fluid Level/Temperature, Installation .
  13. Fill the DEF tank with a minimum of 2.5 gallons of good clean DEF fluid.
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