B3.9 and B5.9 Series Engines
Troubleshooting Symptoms Charts
Section TS - Troubleshooting Symptoms
This is symptom tree T081-001.
Check the drive belt tension. Adjust the
tension if necessary. Refer to Procedure
Drive belt is loose or has high loading
Refer to the OEM service manual.
Refer to the Exhaust Black Smoke - Excessive
Turbocharger fluttering noises can be heard
during deceleration or quick throttle closing.
This noise is normal.
Adjust valves. Make sure the pushrods are not
alve lash excessive
bent or rocker levers not severely worn. Refer
to Procedure 003-004.
Inspect rod bearings. Replace if necessary.
Refer to Procedure 001-014.