CUMMINS N14 - Section T - Troubleshooting

Section T - Troubleshooting
Section Contents
Page
Procedures and Techniques ............................................................................................................................. T-3
Troubleshooting Symptoms Charts.................................................................................................................. T-3
Air Compressor Air Pressure Rises Slowly...................................................................................................... T-4
Air Compressor Noise Excessive .................................................................................................................... T-5
Air Compressor Pumping Excess Lubricating Oil Into Air System ................................................................... T-6
Air Compressor Will Not Maintain Adequate Air Pressure - Not Pumping Continuously................................... T-7
Air Compressor Will Not Pump Air.................................................................................................................. T-8
Air Compressor Will Not Stop Pumping .......................................................................................................... T-9
Alternator Not Charging or Insufficient Charging........................................................................................... T-10
Alternator Overcharging................................................................................................................................ T-11
Connecting Rod Bearing Noise (Refer to Engine Noise Excessive - Connecting Rod Symptom Chart) ........ T-105
Coolant Loss - External................................................................................................................................. T-12
Coolant Loss - Internal.................................................................................................................................. T-13
Coolant Temperature Above Normal - Gradual Overheat.................................................... T-14, T-15, T-16, T-17
Coolant Temperature Above Normal - Sudden Overheat...................................................................... T-18, T-19
Coolant Temperature Below Normal.............................................................................................................. T-20
Crankcase Gases (Blowby) - Excessive......................................................................................................... T-21
Driveability - General Information ................................................................................................................ T-106
Driveability/Low Power - Customer Complaint Form .................................................................................... T-108
Driveability/Low Power/Excessive Fuel Consumption - Checklist ................................................................. T-109
Engine Acceleration/Response Poor ........................................................................................... T-22, T-23, T-24
Engine Brake - Does Not Operate................................................................................................................. T-25
Engine Brake - Low Power or Slow to Activate..................................................................................... T-26, T-27
Engine Brake - One or More Cylinders Braking With Power Switch Off......................................................... T-28
Engine Cranks But Will Not Start (No Smoke From Exhaust) ............................................................... T-29, T-30
Engine Decelerates Slowly (CELECT™ Fuel System)..................................................................................... T-31
Engine Decelerates Slowly (PT Fuel System) ....................................................................................... T-32, T-33
Engine Difficult to Start or Will Not Start - Exhaust Smoke Present............................................................... T-34
Engine Noise Diagnostic Procedures - General Information......................................................................... T-105
Engine Noise Excessive*..................................................................................................................... T-36, T-38
Engine Noise Excessive - Combustion Knocks.............................................................................................. T-39
Engine Noise Excessive - Connecting Rod*.................................................................................................. T-40
Engine Noise Excessive - Main Bearing* ...................................................................................................... T-41
Engine Noise Excessive - Piston* ................................................................................................................. T-42
Engine Noise Excessive - Turbocharger*...................................................................................................... T-43
Engine Power Output Low - Application Specific................................................................ T-47, T-48, T-49, T-50
Engine Power Output Low - Basics ............................................................................................. T-44, T-45, T-46
Engine Power Output Low - Performance Measurement ............................................................. T-51, T-52, T-53
Engine Runs Rough at Idle ......................................................................................................... T-54, T-55, T-56
Engine Runs Rough or Misfires............................................................................................................ T-57, T-58
Engine Shuts Off Unexpectedly or Dies During Deceleration ............................................................... T-59, T-60
Engine Speed Surges at Low Idle ........................................................................................................ T-61, T-62
Engine Speed Surges (Other Than Low Idle) .............................................................................. T-63, T-64, T-65
Engine Vibration - Excessive................................................................................................................ T-66, T-67
Engine Will Not Crank or Cranks Slowly (Air Starting Motor)................................................................ T-68, T-69
Engine Will Not Crank or Cranks Slowly (Electric Starting Motor)......................................................... T-70, T-71
Engine Will Not Shut Off............................................................................................................................... T-72
Engine Will Start But Will Not Keep Running ....................................................................................... T-73, T-74
Engine Difficult to Start or Will Not Start - Exhaust Smoke Present............................................................... T-35
Engine Noise Excessive*.............................................................................................................................. T-37
Fuel Consumption - Automotive Customer Complaint Form......................................................................... T-111
Fuel Consumption - Excessive ............................................................................................................. T-75, T-76
Fuel Consumption - General Information..................................................................................................... T-110
Fuel Consumption - Industrial Customer Complaint Form............................................................................ T-112
Fuel Consumption Excessive - Performance Test Evaluation ...................................................... T-77, T-78, T-79
Fuel in Coolant ............................................................................................................................................. T-80
Fuel in the Lubricating Oil............................................................................................................................. T-81
Industrial, Mechanical Drive Transmission .................................................................................................... T-47
Intake Manifold Air Temperature Above Specification ................................................................................... T-82
Lubricating Oil Consumption Excessive ............................................................................................... T-83, T-84
Lubricating Oil Contaminated........................................................................................................................ T-85
Lubricating Oil in Fuel................................................................................................................................... T-86
Section T - Troubleshooting
N14 Page T-1