TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download

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TM COOLING SYSTEM KNOWN INFO TEMPERATURE GAUGE Ok TEMPERATURE SENDER OK POSSIBLE PROBLEMS ENGINE COOLING SYSTEM OIL COOLING SYSTEMS SERPENTINE BELT FAN CLUTCWTIMER L S F 1 I KNOWN INFO ;ERPENTINE BELT OK ‘AN CLUTCH/TIMER OK EMPERATURE GAUGE AND SENDER OK POSSIBLE PROBLEMS ENGINE COOLING SYSTEM OIL COOLING SYSTEMS , . J DOES THE FAN TURN ON WHEN THE ENGINE TEMPERATURE GAUGE READS ABOVE 220°F (104%)? DIAGNOSTIC FLOWCHART t 5 I Ir REASON FOR QUESTtON The fan clutch should turn the fan on when the I temperature is above 220°F (104%). INSPECT ALL HOSES: THE RADIATOR, THERMOSTAT HOUSING, AND THE OIL COOLER. IS THE VEHICLE FREE OF ANY EVIDENCE OF LEAKING FLUIDS? r OPTIONS LOOK. REASON FOR QUESTlON The vehicle should not leak fluids. 2-64