Engine Will Not Shut Off
Cause Corrections
----------
PT Fuel Pump Shutoff Valve Manual
Override Open
OK
f
Check to make sure manual override
screw is up to maximum travel. Refer to
Procedure 5-04.
----------
Key Switch Circuit Malfunctioning
OK
f
Check vehicle key switch circuit.
----------
Engine Running on Fumes Drawn into
the Air Intake
OK
f
Locate and isolate the source of the
fumes. Repair as necessary.
----------
Fuel Tank Vents Malfunctioning
OK
f
Remove and clean or replace.
----------
Fuel Drain Line Restricted
OK
f
Check lines from the cylinder head to the
fuel tank. Refer to Procedure 5-19 on PT
engines. On CELECT™ engines, refer to N14
CELECT™ System Troubleshooting and
Repair Manual, Bulletin No. 3810469.
----------
Overhead Fuel Tank Check Valve Not
Opening (Normally Off-Highway
Vehicles)
OK
f
Check valve for correct operation (must open
at 2 kPa [0.3 psi]). Incorrectly plumbed.
Refer to Section 5, Miscellaneous
Information.
----------
Injector Malfunctioning, Injector O-ring
Damaged, or Injector Check Balls Not
Seating or Missing
Remove and check injectors. Replace
as necessary. Refer to Procedure 5-10.
Troubleshooting Symptoms Charts SectionT-Troubleshooting
N14Page T-72
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