TM 9-6115-729-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES - Continued
SYMPTOM
44.
Intermittent Low Power or Power Cutout.
MALFUNCTION
Unresolved Diagnostic Codes.
CORRECTIVE ACTION
MALFUNCTION
Throttle Malfunction.
CORRECTIVE ACTION
Verify that the status of the throttle position is stable and that the engine is able to reach high
idle speed. If any requirement is not met, perform Speed Control Test (WP 0013, SYMPTOM
9).
MALFUNCTION
Injection Actuation Pressure Incorrect.
CORRECTIVE ACTION
STEP 1.
Check the engine oil level. Add or remove engine oil as required
(TM 9-6115-729-10, WP 0017).
STEP 2.
Operate the engine under load and allow to warm up to ensure that air has been
purged from the injection actuation system.
STEP 3.
Perform Injection Actuation Pressure Test (WP 0013, SYMPTOM 5).
STEP 4.
Verify the problem has been resolved.
MALFUNCTION
Low Fuel Pressure.
CORRECTIVE ACTION
STEP 1.
On EMCP set ENGINE CONTROL switch to OFF/RESET. Set Battery
Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
STEP 2.
Check fuel hoses for cuts, kinks, and other obstructions. Repair or replace fuel
hoses as required (WP 0056).
STEP 3.
Inspect the fuel tank for foreign material that may block the fuel pickup tube or
fuel hoses. Remove contaminants and foreign objects from fuel tank
(TM 9-6115-729-10, WP 0016).
STEP 4.
Check for air in the fuel system. If air in the fuel is found, check that all fuel
fittings are tight and secure. Purge the air from the fuel system using the priming
pump.
STEP 5.
Check for fault codes indicating fuel filter restrictions. Correct any faults indicated
STEP 6.
If fuel pressure is still low, replace fuel transfer pump (WP 0102).
STEP 7.
Verify the problem has been resolved.
0011-57
