Diagnostic Test
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.
- CHECK TSBs NOTE:
This vehicle is equipped with a Diesel Particulate Filter (DPF) which should trap most particles that would appear out of the tail pipe in the form of black or blue smoke. If black or blue smoke is coming from the tail pipe, the DPF should be inspected for damage after the root cause of the problem is diagnosed and corrected.
- With the scan tool, check for any TSBs that may apply.
Were there any TSBs that applied to and repaired the condition?
Yes
- Perform the appropriate repair.
- Perform the AFTERTREATMENT INSPECTION GUIDELINE procedure. Refer to DIAGNOSIS AND TESTING, 6.7L .
No
- Go To 2
- With the scan tool, check for any TSBs that may apply.
- CHECK FUEL FOR CONTAMINATION
- Perform the DIESEL FUEL CONTAMINATION AND CLEANING PROCEDURE. Refer to DIAGNOSIS AND TESTING, 6.7L .
Is the fuel contaminated with debris?
Yes
- Follow step three of the DIESEL FUEL CONTAMINATION AND CLEANING PROCEDURE and clean the diesel fuel system and Fuel Injectors.
- Perform the AFTERTREATMENT INSPECTION GUIDELINE procedure. Refer to DIAGNOSIS AND TESTING, 6.7L .
No
- Go To 3
- Perform the DIESEL FUEL CONTAMINATION AND CLEANING PROCEDURE. Refer to DIAGNOSIS AND TESTING, 6.7L .
- CHECKING CYLINDER CONTRIBUTION
- Using the scan tool, navigate to Miscellaneous Functions perform the Cylinder Kill test procedure.NOTE:
This test will kill each cylinder one at a time. There is a subsequent drop in RPM when this occurs. Each cylinder should drop approximately the same amount of RPM.
Do the results indicate that the RPM dropped an unusual amount for a cylinder compared to the others?
Yes
- Refer to the CHECKING ENGINE MISFIRE / RUNS ROUGH / PERFORMANCE TEST and begin at test step 5 for diagnosing a single cylinder issue. Refer to DIAGNOSIS AND TESTING, 6.7L .
No
- Go To 4
- Using the scan tool, navigate to Miscellaneous Functions perform the Cylinder Kill test procedure.
- CHECK THE FUEL DELIVERY SYSTEM
- Perform the CHECKING THE FUEL DELIVERY SYSTEM test procedure. Refer to DIAGNOSIS AND TESTING, 6.7L .
Were any problems found?
Yes
- Perform the appropriate repair.
- Perform the AFTERTREATMENT INSPECTION GUIDELINE procedure. Refer to DIAGNOSIS AND TESTING, 6.7L .
No
- Refer to the CHECKING ENGINE MISFIRE / RUNS ROUGH / PERFORMANCE TEST and begin at test step 8 . Refer to DIAGNOSIS AND TESTING, 6.7L .
- Perform the CHECKING THE FUEL DELIVERY SYSTEM test procedure. Refer to DIAGNOSIS AND TESTING, 6.7L .