TM 5-3810-306-20
TABLE 3-1. ORGANIZATIONAL TROUBLESHOOTING (CONTD)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 5.
Air in the fuel system.
a. Bleed the fuel system (Refer to page 5-12.) and check for suction leaks. If no air detected, do
Step 6.
Step 6.
Defective fuel transfer pump.
a. Using STE/ICE, check fuel supply pressure. If OK, do Step 7. (Refer to VTM test no. 24.)
b. Replace fuel transfer pump. (Refer to page 5-18.)
Step 7.
Fuel supply restricted.
a. Using STE/ICE, check fuel filter pressure drop. (VTM test no. 26). If OK, do Step 8.
b. Replace fuel filter (Refer to page 5-15.) and check fuel lines for restrictions. If OK, do Step 8.
c. Replace restricted fuel line(s). (Refer to page 5-9.)
Step 8.
Fuel system malfunction.
a. Contact Direct Support Maintenance.
15. ENGINE MISFIRING
Step 1.
Air in fuel system.
a. Bleed fuel system (Refer to page 5-12.) and check for suction leaks. If no air detected, do Step
2.
Step 2.
Fuel injection lines leaking.
a. Inspect fuel injector lines for leaks. If OK, do Step 3.
b. Tighten fuel line fittings.
Step 3.
Incorrect valve adjustment.
a. Check valve adjustment. If OK, do Step 4. (Refer to page 4-2.)
b. Adjust valve clearances.
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