RAM 3500 Chassis Cab Truck 2WD L6-6.7L DSL Turbo (2010)
-
Perform the appropriate repair according to the testing and cleaning procedure.
-
Go To 3
No, and vehicle starts and runs:
-
Go To 3
No, and vehicle is a no start condition:
-
Go To 5
3. CHECKING CYLINDER CONTRIBUTION
1. Using the scan tool, perform the Fuel System Run Up test procedure.
NOTE: This test will take approximately 270 seconds to complete. The PCM will cut out each individual Fuel Injector three times and
calculate the delta RPM change. Based on the delta RPM change, the test will indicate a bad cylinder based on the limits that have
been set. When the test is complete, the engine will return to idle. This test routine should also be used to validate that the system is
operating properly after the repairs are completed.
Do the results indicate that a cylinder is out of speck?
Yes
-
Perform the CHECKING ENGINE MISFIRE / RUNS ROUGH / PERFORMANCE TEST procedure and continue troubleshooting the faulty
cylinder condition starting at test step 9. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests
and General Diagnostics/Checking Engine Misfire / Runs Rough / Performance Test
No
-
Go To 4
4. PERFORM THE HIGH PRESSURE FUEL SYSTEM TEST
1. Using the scan tool, navigate to System Tests and perform the High Pressure Fuel System test procedure.
NOTE: The High Pressure Fuel System test is a comprehensive fuel system test that operates the engine and fuel system under several
diagnostic operating conditions. When the test is complete, the engine will stall. In MOST cases, this test can determine IF there are
any fuel system issues, and if so, whether diagnostics should begin at the LOW pressure side or the HIGH pressure side of the system.
Based on the results of the test routine, you will be directed to either start testing at the low pressure side (step 5) of the system or go
directly into the high pressure side of the system in order to shortcut the diagnostic time. However, if the test routine fails and you are
directed to the high pressure side of the system and do not find an issue at the completion of the test, it is recommended that you go
back to test step 5 and continue with the rest of the fuel system testing. This test routine should also be used to validate that the system
is operating properly after the fuel system has been diagnosed and repairs are completed.
NOTE: If you get ANY other combination of failures besides the three indicated below, start with the lowest numbered failed test in the list.
Follow the appropriate diagnostic path:
The Fuel System High Pressure test passed all tests:
-
The test routine did not detect any fuel system issues. If you suspect the fuel system still may be at fault, then continue on to step 5.
The results indicated that tests 1,3,7 ALL failed in COMBINATION:
-
Go To 5
The results indicated that tests 3,5,7,11,13,15 ALL failed in COMBINATION:
-
Go To 10
The results indicated that tests 11,13,15 ALL failed in COMBINATION:
-
Go To 10
The results indicated a SINGLE test failure of test 1:
