TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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REFERENCE INFORMATION Because the engine cooling tests can take a long time (mostly letting a cold engine warm up), you don’t have to run them unless there is or may be a problem in the cooling system. - TM 9-2320-387-24-l ENGINE RUNNING 2-59/(2-60 blank)