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 COOLING SYSTEM I KNOWN INFO I NONE 1 POSSIBLE PROBLEMS 1 TEMPERATURE GAUGE TEMPERATURE SENDER ENGINE COOLING SYSTEM OIL COOLING SYSTEMS SERPENTINE BELT CONTROL VALVE KNOWN INFO TEMPERATURE GAUGe IS BELOW 240°F (116°C) AT ALL TIMES. POSSIBLE PROBLEMS 1 TEMPERATURE GAUGE TEMPERATURE SENDER ENGINE COOLING SYSTEM OIL COOLING SYSTEMS SERPENTlNE BELT CONTROL VALVE KNOWN INFO I-EMPERATURE GAUGE SEEMS TO WORK OK POSSIBLE PROBLEMS -EMPERATIJRE GAUGE ‘EMPERATURE SENDER ENGINE COOLING SYSTEh XL COOLING SYSTEMS SERPENTINE BELT :ONTROL VALVE 2-62 I S THE ENGINE TEMPERATURE ;AUGE BELOW FULL SCALE AT ALL TIMES? DIAGNOSTIC FLOWCHART r OPTIONS LOOK. REASON FOR QUESTION The engine should not reach temperatures over 240°F (116%). DOES THE TEMPERATURE GAUGE READ BELOW 120°F (49°C) WHEN THE ENGINE IS COLD AND THEN INDICATE HIGHER TEMPERATURES AS THE ENGINE WARMS? r OPTIONS VISUAL REASON FOR QUESTION You want to know if the gauge is working properly. INSTRUMENTS, .- I I DOES THE ENGINE APPEAR TO BE I PROPERLY COOLED WITH NO I EVIDENCE OF OVERHEATING? OPTIONS LOOK. REASON FOR QUESTION If the engine is overtreating with the temperature gauge below full scale, both the ENGINE COOLING, Page 2-159 AND THEN INSTRUMENTS, temperature sending system and the engine cooling are faulty.