Operation and maintenance manual

QSB4.5 and QSB6.7
Section TS - Troubleshooting Symptoms Page TS-a
Section TS - Troubleshooting Symptoms
Section Contents
Page
Troubleshooting Procedures and Techniques ......................................................................................................TS-1
General Information.................................................................................................................................................TS-1
Troubleshooting Symptoms Charts .......................................................................................................................TS-2
General Information.................................................................................................................................................TS-2
Air Compressor Air Pressure Rises Slowly .............................................................................................................TS-3
Air Compressor Cycles Frequently..........................................................................................................................TS-4
Air Compressor Noise is Excessive.........................................................................................................................TS-5
Air Compressor Pumping Excess Lubricating Oil into the Air System ....................................................................TS-6
Air Compressor Will Not Maintain Adequate Air Pressure (Not Pumping Continuously).........................................TS-7
Air Compressor Will Not Stop Pumping...................................................................................................................TS-8
Alternator Not Charging or Insufficient Charging.....................................................................................................TS-9
Alternator Overcharging.........................................................................................................................................TS-10
Coolant Contamination...........................................................................................................................................TS-11
Coolant Loss - External..........................................................................................................................................TS-12
Coolant Temperature Above Normal - Gradual Overheat......................................................................................TS-13
Coolant Temperature Above Normal - Sudden Overheat......................................................................................TS-15
Coolant Temperature Below Normal......................................................................................................................TS-17
Engine Acceleration or Response Poor.................................................................................................................TS-18
Engine Difficult to Start or Will Not Start (Exhaust Smoke)....................................................................................TS-20
Engine Difficult to Start or Will Not Start (No Exhaust Smoke)..............................................................................TS-22
Engine Noise Excessive.........................................................................................................................................TS-24
Engine Noise Excessive — Combustion Knocks...................................................................................................TS-26
Engine Power Output Low..................................................................................................................................... TS-27
Engine Runs Rough at Idle....................................................................................................................................TS-29
Engine Runs Rough or Misfires............................................................................................................................. TS-30
Engine Shuts Off Unexpectedly or Dies During Deceleration................................................................................TS-32
Engine Speed Surges at Low or High Idle.............................................................................................................TS-33
Engine Speed Surges in PTO or Cruise Control....................................................................................................TS-36
Engine Speed Surges Under Load or in Operating Range....................................................................................TS-34
Engine Starts But Will Not Keep Running..............................................................................................................TS-37
Engine Vibration Excessive....................................................................................................................................TS-38
Engine Will Not Crank or Cranks Slowly (Air Starter)............................................................................................ TS-39
Engine Will Not Crank or Cranks Slowly (Electric Starter).....................................................................................TS-41
Engine Will Not Reach Rated Speed (RPM)..........................................................................................................TS-42
Fault Code Warning Lamps Do Not Illuminate.......................................................................................................TS-45
Fault Code Warning Lamps Stay On (No Apparent Reason)................................................................................ TS-44
Fuel Consumption Excessive.................................................................................................................................TS-46
Fuel in Coolant.......................................................................................................................................................TS-48
Fuel in the Lubricating Oil...................................................................................................................................... TS-49
Intake Manifold Air Temperature Above Specification...........................................................................................TS-50
Intake Manifold Pressure (Boost) is Below Normal................................................................................................TS-52
Lubricating Oil Consumption Excessive.................................................................................................................TS-53
Lubricating Oil Contaminated.................................................................................................................................TS-54
Lubricating Oil Loss................................................................................................................................................TS-55
Lubricating Oil Pressure High................................................................................................................................ TS-57
Lubricating Oil Pressure Low.................................................................................................................................TS-58
Lubricating Oil Sludge in the Crankcase Excessive...............................................................................................TS-60
Smoke, Black — Excessive................................................................................................................................... TS-61
Smoke, White — Excessive...................................................................................................................................TS-62
Turbocharger Leaks Engine Oil or Fuel.................................................................................................................TS-64