Symptom Tree t025 Printable Version This is symptom tree t025 Cause Correction Lubricating oil cooler is leaking Check for lubricating oil in the coolant. Refer to…
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Symptom Tree t014 Printable Version This is symptom tree t014 Cause Correction Voltage regulator is malfunctioning Check the voltage regulator. Replace the voltage regulator, if necessary.…
N14 Base Engine Troubleshooting and Repair Manual – Alternator Not Charging or Insufficient Charging
Symptom Tree t013 Printable Version This is symptom tree t013 Cause Correction Alternator belt is loose Check the alternator belt tension. Refer to Procedure 013-005. …
Symptom Tree t010 Printable Version This is symptom tree t010 Cause Correction Air system leaks Block the vehicle wheels and check the air system for leaks…
Symptom Tree t009 Printable Version This is symptom tree t009 Cause Correction Air governor is malfunctioning or not set correctly Check the air governor for correct…
Symptom Tree t008 Printable Version This is symptom tree t008 Cause Correction Air system leaks Block the vehicle wheels and check the air system for leaks…
Symptom Tree t007 Printable Version This is symptom tree t007 Cause Correction Lubricating oil drain interval is excessive Verify the correct lubricating oil drain interval. Refer…
Symptom Tree t006 Printable Version This is symptom tree t006 Cause Correction Carbon buildup is excessive in the air discharge line, check valve, or cylinder head…
Symptom Tree t005 Printable Version This is symptom tree t005 Cause Correction Air system leaks Block the vehicle wheels and check the air system for leaks…
Symptom Tree t004 Printable Version This is symptom tree t004 Cause Correction Air intake system restriction to air compressor is excessive Replace the air compressor air…