roubleshooting Symptoms Charts
B3.9 and B5.9 Series Engines
Section TS - Troubleshooting Symptoms
Engine Vibration Excessive
This is symptom tree T075.
Refer to the Engine Runs Rough or Misfires
Engine not running smoothly
Check the oil level. Verify the dipstick calibra-
tion and oil pan capacity. Fill the system to the
ubricating oil level is above specification
specified level. Refer to Procedure 007-025.
Check the fan. Refer to the OEM service
an is loose, damaged, or not balanced
Inspect or replace the fan hub. Refer to
an hub malfunctioning
ibration damper malfunctioning (six cylinder
Inspect the vibration damper. Replace, if
necessary. Refer to Procedure 001-052.
Verify the condition of the mounts. Refer to
ngine mounts are worn, damaged, loose, or
Procedure 016-010. Refer to OEM service
Check or adjust the bumper spring adjustment.
dle adjustment not correct
Refer to Procedure 005-029.
lternator bearing worn or damaged
Inspect the crankshaft and rods for damage
ower components loose or broken
that causes an unbalance. Refer to Procedure
001-016 or 001-014.