CUMMINS N14 - Engine Power Output Low - Basics (Continued)

Engine Power Output Low - Basics (Continued)
Cause Corrections
----------
Fuel Pump Incorrect
OK
f
Check fuel pump dataplate for correct codes.
----------
Intake Air Restriction Excessive
OK
f
Visually inspect air filter and restriction
indicator and replace air filter if necessary.
Refer to Procedure 3-04.
----------
Intake, CAC, or Exhaust Air Leak
OK
f
Check for loose or damaged piping connec-
tions and/or missing pipe plugs. Check
turbocharger and exhaust manifold mount-
ing. Refer to Procedure 3-01.
----------
Throttle Lever, Return Spring, Linkage, or
Air Throttle Cylinders Damaged or
Adjusted Incorrectly
OK
f
Check operation. Refer to Procedure 5-02.
----------
Mechanical Shutoff Lever Partially Engaged
OK
f
Check/adjust solenoid linkage. Refer to
Procedure 5-04.
----------
Fuel Filter(s) Plugged
OK
f
Replace fuel filter(s). Refer to Proce-
dure 5-01.
----------
Lubricating Oil Level Too High
OK
f
Check oil level. Check dipstick calibra-
tion. Refer to Procedure 2-10.
----------
Intake Manifold Air Temperature
Excessive (Above 170°F)
OK
f
Refer to ‘‘Intake Manifold Air Temperature
Above Specification’’ Symptom Chart.
(Continued)
SectionT-Troubleshooting Troubleshooting Symptoms Charts
N14 Page T-45