TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 174 of 1205
TM 9-2320-387-24-l FUEL SYSTEM I KNOWN INFO I HARD COLD STARTING COLD ADVANCE GLOW PLUG CIRCUIT FUEL SYSTEM KNOWN INFO POWER TO COLD ADVANCE SOLENOID POSSIBLE PROBLEMS COLD ADVANCE CIRCUIT GLOW PLUG CIRCUIT FUEL SYSTEM KNOWN INFO COLD ADVANCE CIRCUIT OK POSSIBLE PROBLEMS GLOW PLUG CIRCUIT FUEL SYSTEM DIAGNOSTIC FLOWCHART DISCONNECT WIRE 5698 FROM COLD ADVANCE SOLENOID. WITH ~ROTARY SWITCH IN RUN POSITION IS THERE BA-tTERY VOLTAGE AT WIRE 569B? 1. STUICE-R TEST 89 (Page 2-508) 2. MULTIMETER I REASON FOR QUESTION ‘( cold advance solenoid. Need battery voltage to energize c2 1 r RECONNECT WIRE 5698. IS THE COLD ADVANCE CIRCUIT WORKING? ST OPTIONS PERFORM CHECKS AT RIGHT. REASON FOR QUESTION Cold advance circuit can cause hard cold starting. f c3 1 TEST OPTIONS RUN GLOW PLUGS CIRCUIT TESTS. IF NO FAULTS FOUND, CONTINUE FUEL SYSTEM TESTS. 1. GLOW PLUGS CIRCUIT TESTS (Page 2-289) 2. FUEL SYSTEM TESTS REASON FOR TESTS The glow plug circuit operates duhng cold start. 2-114