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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1587 (Emissions Control) >> Exhaust Gas RECIRCULATION, 6.7L Diesel >> Valve, Exhaust Gas RECIRCULATION (EGR), 6.7L Diesel >> Cleaning

Valve, Exhaust Gas RECIRCULATION (EGR), 6.7L Diesel: Cleaning

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
GC0110297Courtesy of CHRYSLER GROUP, LLC
  1. Remove EGR valve. Refer to VALVE, EXHAUST GAS RECIRCULATION (EGR), 6.7L DIESEL, REMOVAL .
  2. Remove the four screws (4) from EGR valve motor (3).
    GC0110298Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    The original EGR valve motor and its shim must be reinstalled onto the original EGR valve housing.

  3. Remove the valve motor (6) and shim (5) from EGR valve housing (1). Motor (6) and shim (5) must be kept for reassembly.
    GC0110299Courtesy of CHRYSLER GROUP, LLC
  4. Use two fingers to press down on valve spring retainer (3) to unlock two valve keepers (2). If valve keepers will not release using finger pressure, locate a 5/8" deep socket to the spring retainer (3). Gently tap on the socket with a small hammer to release keepers, then use two fingers and press for keeper removal.
    GC0110298Courtesy of CHRYSLER GROUP, LLC
  5. Remove the valve spring retainer (3) and valve spring (2).
    GC0110300Courtesy of CHRYSLER GROUP, LLC
  6. Lightly press on valve stem (1) about 3/8" to force valve faces from valve seats.
  7. Using a small steel wire bristled brush, brush away loose soot from EGR valve housing.
    GC0143934Courtesy of CHRYSLER GROUP, LLC
  8. The EGR valve shaft assembly (1) is comprised of two poppets (2), two seats (3), and a lower soot guard (4). An upper soot guard (5) is pressed into the housing.
  9. Using the same steel wire bristle brush, clean the soot from both poppets (2) and both seats (3); Ensure there is metal to metal contact between both poppet/seats interfaces so that the valve is fully closed.
  10. Using the same steel wire bristle brush bend to a 45 degree angle or 90 degree angle, clean the soot between the lower soot guard (4) and the upper soot guard (5) interface while rotating the shaft.
  11. Completely submerge valve housing using a mixture of hot tap water and MOPAR® EGR System Cleaner (ESC). Mix cleaning solution 1 part ESC and 4 parts water. Allow the valve to soak in the cleaning solution for 1 hour, and occasionally agitating the shaft or moving it up and down through its full stroke.
  12. Remove the valve assembly from cleaning solution. Completely remove remaining soot from shaft assembly (1), poppets (2), seats (3), and between the lower soot guard (4) and upper soot guard (5) using the wire bristle brushes.
  13. Dispose of cleaning solution per local governmental regulations.
  14. Rinse EGR valve housing in hot tap water until all cleaning solution is rinsed clean. Using shop air, blow dry the EGR valve completely.
    GC0110298Courtesy of CHRYSLER GROUP, LLC
  15. Assemble valve spring (2) and retainer (3) to housing.
    GC0110299Courtesy of CHRYSLER GROUP, LLC
  16. Position valve keepers (2). Press down on retainer (3) until groves on valve keepers lock into valve stem (1).
    GC0110298Courtesy of CHRYSLER GROUP, LLC
  17. Install original shim (5) and original motor (6) to housing. Motor is not indexed. Rotate motor until its electrical connector is pointed towards front of vehicle. Install four mounting screws (7).
  18. Install EGR valve. Refer to VALVE, EXHAUST GAS RECIRCULATION (EGR), 6.7L DIESEL, INSTALLATION .
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