General Information
Use the following procedure for additional information on the after treatment system. Refer to System Description .
The following procedure contains information about how to inspect the Diesel Particulate Filter (DPF) and perform a stationary regeneration.
There are two main steps when checking the DPF:
- The Initial Check section of this procedure is used to determine the condition of the DPF without removal of the Diesel Oxidation Catalyst and Diesel Particulate Filter Assembly (DOC and DPF Assembly). The Initial Check step should be used to determine if the DPF has malfunctioned due to progressive damage.
- The Test section of the procedure explains how to perform a stationary regeneration using an electronic service tool. The Test step should only be performed when troubleshooting procedures and/or engine indicator lamps indicate this is necessary.
If the DPF requires replacement, before replacement:
- Troubleshoot and clear all P-codes.
- Verify the correct fuel type is being used.
- Troubleshoot any oil consumption complaint.
- Troubleshoot any coolant consumption complaint.
- Inspect the Diesel Oxidation Catalyst (DOC) inlet. Refer to Removal and Installation .
The CONSULT electronic service tool DPF Stationary Regeneration Test can be used to:
- Regenerate an after treatment DPF.
- Recover the after treatment diesel oxidation catalyst and after treatment DPF after coolant contamination.
- Reset the stored soot load in the Engine Control Module (ECM).
- Check the after treatment diesel oxidation catalyst efficiency.
- Check for the presence of the DOC.
- Check for the correct installation of the temperature sensors.
The CONSULT electronic service tool DPF Stationary Regeneration Test can be used to regain functionality of the DOC and DPF, after either or both have been exposed to coolant.
The temperatures that are achieved during regeneration are high enough to evaporate the coolant out of both components and return them to normal operating specifications.