TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l FUEL SYSTEM RUNNING ROUGH POSSIBLE PROBLEMS 1 GLOW PLUGS COLD ADVANCE FUEL LINES FUEL PUMP FUEL FILTER INJECTION PUMP INJECTORS KNOWN INFO GLOW PLUGS OK POSSIBLE PROBLEMS COLD ADVANCE FUEL UNES FUEL PUMP FUEL FILTER INJECTlON PUMP INJECTORS r RUN THE GLOW PLUG TESTS. RETURN HERE IF NO FAULTS FOUND. DIAGNOSTIC FLOWCHART ST OPTfONS RUN GLOW PLUGS CIRCUIT TESTS (Page 2-289). IF YOU ARE SURE THAT THE PROBLEM EXISTS WHEN THE ENGINE IS WARM, YOU CAN SKIP THIS QUESTlON. REASON FOR QUESTION Glow plug failures can cause rough running when cold. CHECK COLD ADVANCE CIRCUIT. GO TO STEP C2, PAGE 2-114. RETURN HERE IF NO FAULTS FOUND. COLD ADVANCE TESTS (Page 2-114) TEST OPTIONS REASON FOR QUESTlON A faulty cold advance circuit can cause rough running. 2-120