TM 5-3810-306-20TABLE 3-1. ORGANIZATIONAL TROUBLESHOOTING (CONTD)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONStep 4.Fuel system malfunction.a. Contact Direct Support Maintenance.16. FUELKNOCKStep 1.Air in fuel system.a. Bleed fuel system and check for suction leaks. If no air is detected, do Step 2. (Refer to page5-12.)Step 2.Fuel system malfunction.a.Contact Direct Support Maintenance.17. EXCESSIVEFUELCONSUMPTIONStep 1.Inadequate intake air or exhaust restriction.a. Refer to troubleshooting logic for Exhaust Smoke Excessive Under Load. If OK, do Step 2.Step 2.Incorrect valve adjustment.a. Check valve adjustment.b. Adjust valve clearances. (Refer to page 4-2.)3-15
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