42755 Mercruiser SPROCKET, CRANKSHAFT TIMING

Table 1
J1939 Code and Description CDL Code and Description Comments
3242-15
Aftertreatment #1 DPF Intake Temperature : High - least severe (1) E1008 (1)
Aftertreatment 1 Diesel Particulate Filter Intake Gas Temperature High The temperature at the intake of the DPF exceeded a predetermined value.
Active regeneration is immediately disabled. The code is logged.
3242-16
Aftertreatment #1 DPF Intake Temperature : High - moderate severity (2) E1008 (2)
Aftertreatment 1 Diesel Particulate Filter Intake Gas Temperature High The temperature at the intake of the DPF exceeded a predetermined value.
Active regeneration is immediately disabled. The code is logged.
4766-16
Afterteratment #1 Diesel Oxidation Catalyst Outlet Temperature : High moderate severity (2) N/A The temperature at the intake of the DPF exceeds a predetermined value.
Active regeneration is immediately disabled. The code is logged.
Table 2
Associated Diagnostic Trouble Codes
3480-15
3480-16
4077-15
4077-16
E1050
E1051 Recommended Actions
Table 3
Troubleshooting Test Steps Values Results
1. Check for Associated Codes
A. Establish communication between the Cat® Electronic Technician (ET) and the ECM. Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Download the "Warranty Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.
C. Troubleshoot any associated diagnostic codes listed in Table 2 that are present before continuing with this procedure.
Associated Codes
Result: An associated diagnostic trouble code is not active or logged.
Proceed to Test Step 2.
Result: An associated code is active or logged.
Repair: Troubleshoot the associated codes before continuing with this procedure.
2. Check for Boost Leaks
A. Apply a light load to the engine and check for a boost leak.
Boost Leaks
Result: Boost leakage was not found.
Proceed to Test Step 3.
Result: Boost leakage was found.
Repair: Repair the leaks.
If the problem is not resolved, proceed to Test Step 3.
3. Check for High Exhaust Temperatures
A. Several factors can cause a calculated high exhaust temperature. Refer to Troubleshooting, Exhaust Temperature Is High for more information on calculated high exhaust temperatures
High Exhaust Temperatures
Result: The engine is not experiencing high exhaust temperatures.
Proceed to Test Step 4.
Result: The engine is experiencing high exhaust temperatures.
Repair: Repair the cause of the high exhaust temperature.
4. Perform a manual cylinder cutout test.
A. Remove the inlet section (DOC) from the DPF. Refer to Disassembly and Assembly, Inlet Module (Catalyst) - Remove and Install.
B. Perform a manual cylinder cutout test. Manually cut out each cylinder while the exhaust is monitored. As each cylinder is cut out, look for a decrease in white smoke.
Faulty Injector
Result: A faulty injector is not found.
Proceed to Test Step 5.
Result: A faulty injector is found.
Repair: Replace any injectors that cause the engine to smoke and run rough when the cylinder is not cut out.
1. Clean inside the inlet section of the DPF.
2. Assemble the DPF. The engine must be run with no load at 1400 rpm for at least 15 minutes. If the white smoke continues after 15 minutes, the engine must continue to run until there is no white smoke.
5. Inspect the DPF
A. Remove the inlet section from the DPF.
B. Inspect inside the inlet section and the front face of the DPF. Look for oil and for excessive soot.
C. Inspect the inlet to the Diesel Oxidation Catalyst (DOC). Inspect the inlet of the catalyst and check the catalyst for plugging.
Note: A small amount of soot is a normal condition. Contact your local technical communicator for Caterpillar engines if you suspect that the amount of soot is excessive. Continue with this procedure after you have received guidance from the technical communicator.
DPF
Result: Oil is not found.
Proceed to Test Step 6.
Result: Oil is found.
Repair: Perform the following procedure:
1. Inspect the outlet of the turbocharger. Clean the oil from inside the inlet section of the DPF.
2. Assemble the DPF. The engine must be run with no load at 1400 rpm for at least 15 minutes. If the white smoke continues after 15 minutes, the engine must continue to run until there is no white smoke.
Proceed to Test Step 6.
6. Perform a "Manual DPF Regeneration"
Note: This test must be performed through Cat ET. The Cat ET service tool enhances the diagnostics during the service test.
A. Reset all active codes and clear all logged codes.
B. Start a "Manual DPF Regeneration".
"Manual DPF Regeneration"
Result: The "Manual Diesel Particulate Filter Regeneration" was successful.
Return the engine to service.
Result: The "Manual Diesel Particulate Filter Regeneration" was not successful.
Repair: Troubleshoot any diagnostic codes that are present, if no codes are present return the unit to service.
If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).