Engine Speed Surges (Other Than Low Idle)
Cause Corrections
----------
• Electronic Fault Codes Active
• High Counts of Inactive Fault Codes
OK
f
Refer to N14 CELECT™ System Trouble-
shooting and Repair Manual, Bulletin No.
3810469.
----------
Fuel Level Low in the Tank
OK
f
Fill supply tank.
----------
Throttle Linkage Loose or Adjusted
Incorrectly or Worn Components
OK
f
Adjust linkage. Refer to Procedure 5-02.
----------
VS Governor Air Actuated Throttle -
Low System Air Pressure
OK
f
Make sure system air pressure is
maintained at a minimum of 552 kPa
[80 psi].
----------
Air Trapped in STC Valve Fuel Pressure
Sensing Line
OK
f
Bleed air from sensing line at the STC
valve.
----------
Air in the Fuel
OK
f
Check for air in the fuel. Tighten the fuel line
connections. Tighten filter. Check tank stand
pipe. Check PT fuel pump road speed
governor (STC only). Refer to Procedure
5-16.
----------
Fuel Inlet Restriction Excessive
OK
f
To check restriction, refer to Procedure 5-01.
Replace fuel filter element or damaged/
improperly sized fuel inlet plumbing. Refer to
N14 CELECT™ System Troubleshooting and
Repair Manual, Bulletin No. 3810469.
----------
Fuel Drain Line Restriction Excessive
OK
f
Check for loops, restricted fittings, lines and
tank vents. Refer to Procedure 5-19. Refer to
N14 CELECT™ System Troubleshooting and
Repair Manual, Bulletin No. 3810469.
(Continued)
SectionT-Troubleshooting Troubleshooting Symptoms Charts
N14 Page T-63
To Next Page
Loading...
