TM 5-3810-306-20
TABLE 3-1. ORGANIZATIONAL TROUBLESHOOTING (CONTD)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
ENGINE STARTS BUT WILL NOT KEEP RUNNING
Step 1.
Idle speed too low.
a. Check idle speed (500-600 RPM). If OK, do Step 2.
b. Adjust idle speed. (Refer to page 5-20.)
Step 2.
Air in fuel system.
a. Bleed the fuel system and check for suction leaks. If
OK, do Step 3.
Step 3.
Fuel filter plugged.
a. Remove and inspect fuel filter. If OK, do Step 4.
b. Replace fuel filter. (Refer to page 5-15.)
Step 4.
Fuel supply restricted.
a. Using STE/ICE, check fuel supply pressure (VTM test no. 24) and fuel filter pressure drop
(VTM test no. 26.)
b. Check for fuel line restrictions. If OK, do Step 5.
c. Replace restricted fuel line. (Refer to page 5-9.)
Step 5.
Defective fuel shutoff solenoid.
a. Ensure fuel shutoff solenoid is operating properly.
b. Replace fuel shutoff solenoid. (Refer to page 8-58.)
5.
ENGINE WILL NOT SHUT OFF
Step 1.
Defective fuel shutoff solenoid.
a. Ensure solenoid is not being energized by short circuit in wiring.
b. Check fuel shutoff linkage for binding.
c. Ensure fuel shutoff solenoid can pull fuel injection pump lever to shutoff position.
3-7
