CUMMINS N14 - Engine Acceleration;Response Poor (Continued)

Engine Acceleration/Response Poor (Continued)
Cause Corrections
----------
For CELECT™ Engines, In Range Sensor
Failures
• Boost Sensor Malfunctioning
• Coolant Temperature Sensor Malfunction-
ing
• Intake Manifold Temperature Sensor
Malfunctioning
OK
f
Verify proper operation of sensors with
redundant mechanical gauges and the
Compulink™ in monitor modes. Refer to the
N14 CELECT™ System Troubleshooting and
Repair Manual, Bulletin No. 3810469.
----------
Throttle Linkage Adjustment Incorrect
or Binding
OK
f
Check throttle linkage adjustment.
Refer to Procedure 5-02.
----------
Vehicle Parasitics Excessive
OK
f
Check vehicle brakes dragging,
transmission malfunction, etc.
----------
Intake and/or CAC Air Leak
OK
f
Visually check for air leaks in the intake
system. Tighten clamps. Refer to Proce-
dure 3-01.
----------
Air In The Fuel - Spongy Throttle Is
The Symptom on PT Systems
OK
f
Check for air in fuel. Tighten fuel
connections and fuel filter(s).
----------
Fuel Rail Line or Fuel Rail Test Instrumenta-
tion Gauge Line Excessively Long, Large in
Diameter, or entrained With Air Causing it to
Act as an Accumulator
OK
f
Visually inspect the fuel rail pressure lines for
misinstallation. Remove rail pressure line
and/or gauge line and bleed air. Check
again. Replace lines as necessary.
(Continued)
SectionT-Troubleshooting Troubleshooting Symptoms Charts
N14 Page T-23