Troubleshooting

RENR2696-01 51
Troubleshooting Section
2. Check the fuel injection nozzles. Refer to Testing
and Adjusting,
“Fuel Injection Nozzle - Test”.
3. Ensure that the repairs have eliminated the
problems.
4. If the problem has not been eliminated, proceed
to “Check the T
urbocharger (if equipped)”.
Check the Turbocharger (if equipped)
Note: The turbochargers that are equipped on 1100
Series engines are nonserviceable items. If any
mechanical f
ault exists then the turbocharger must
be replaced.
1. Ensure that t
he mounting bolts for the turbocharger
are tight.
2. Check that th
e turbocharger drain is not blocked
or restricted.
3. Check that th
e turbocharger housing is free of dirt
and debris.
4. Check the tu
rbocharger for worn bearings. Refer
to Systems Operation, Testing and Adjusting,
“Turbocharger - Inspect”. The turbochargers that
are equippe
d on 1100 Series engines are not
serviceable. If any mechanical fault exists then the
turbocharger must be replaced.
5. Check that the turbine blades rotate freely on the
turbocharger. Refer to Systems Operation, Testing
and Adjust
ing, “Turbocharger - Inspect”.
6. Ensure that the wastegate on the turbocharger is
adjusted c
orrectly. Refer to Systems Operation,
Testing and Adjusting, “Turbocharger - Inspect”.
The adjustment of the wastegate is set by the
factory.
If the adjustment of the wastegate is
incorrect then the turbocharger must be replaced.
7. Make all n
ecessary repairs to the engine.
8. Ensure that the repairs have eliminated the faults.
9. If the repairs have not eliminated the fault proceed
to “Broken 5 volt supply wire”.
Broken 5 volt Supply Wire
1. Check the
5 volt supply for the intake manifold
pressure sensor. Refer to Troubleshooting, “5 volt
Pressue Sensor Supply Circuit - Test”.
2. If the repairs have not eliminated the fault proceed
to “Verifying the ECM Software”.
VerifyingtheECMSoftware
1. Connect the electronic service tool to the
diagnostic connector and check for the following
conditions:
•
Check for the correct engine serial number
•
Check for the correct arrangement number
•
Check for the c
orrect software
2. Use the electronic service tool to verify any active
diagnostic co
des.
3. If diagnostic codes are present, the ECM must be
programmed wi
th the correct information.
i01798128
Excessive Engin e O il
Consumption
Probable Causes
•
Oil level
•
Engine crankcase breather
•
Engine oil temperature
•
Air intake and exhaust system
•
Turbocharger (if equipped)
•
Low compression (cylinder pressure)
Recommended Actions
Oil Level
Remove excess oil. Locate the source of the excess
fluid. Repair the leaks that are causing the problems.
Recheck all fluid levels.
Engine Crankcase Breather
1. Check the engine crankcase breather (if equipped)
for blockage or restrictions.
2. Repair all defects. Verify that the repair has
eliminated the problem.
Air Intake and Exhaust System
1. Check the air filter restriction indicator, if equipped.
2. Ensure that the air filter is clean and serviceable.