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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 360 (Emissions Control - 2500 Hd & 3500 Hd) >> Diesel Exhaust Fluid Emissions, 6.7L Diesel >> Diagnosis And Testing >> Diagnosis And Testing - Diesel Exhaust Fluid

Diagnosis And Testing - Diesel Exhaust Fluid

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:

Diesel Exhaust Fluid (DEF) contains urea. Do not get the substance in your eyes. In case of contact, immediately flush eyes with large amounts of water for a minimum of 15 minutes. Do not swallow. In the event the DEF is ingested, contact a physician immediately. Reference the Materials Safety Data Sheet (MSDS) for additional information.

  1. Remove the DEF fill pipe at tank.
  2. Visually inspect the fluid for sign of contamination or debris.
  3. Collect a sample of diesel exhaust fluid from the system.
  4. Test the quality of the DEF using the DEF/UREA Refractometer 94-F-OOK-108-456 available through Pentastar Service Equipment (PSE).
    1. The DEF should register approximately 32.5 percent using a refractometer.
    NOTE:

    The use of latex gloves is mandatory to prevent false readings with the oil/hydrocarbon detection paper.

  5. To test for hydrocarbons in the DEF tank use hydroscopic test paper (PSE part number. 223-44-863). The test strip come in contact with the DEF fluid in the tank in order to get a valid reading for hydrocarbons present in tank.
  6. Remove the oil/hydrocarbon detection paper from packing, inspect for color consistency. If color is not consistent replace strip.
  7. Disconnect the DEF fill pipe from tank and try to get a sample or remove the DEF tank. Refer to TANK, DIESEL EXHAUST FLUID, REMOVAL .
  8. Place the detection paper directly into the DEF fluid in the tank. If the light blue paper turns dark blue, oil or hydrocarbon contamination exist.
  9. If the DEF is not within specifications then the tank needs to be drained and cleaned and refilled with a minimum of 2.5 gallons good DEF.
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