TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 1 Download

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TM 9-2320-280-20-1 2-22. FUEL SYSTEM TESTS These Fuel System tests can be run any time you think there maybe a problem with the fuel system or if you were sent here from another test. If you are running this test because the engine runs rough remember that air intake and exhaust as well as internal mechanical problems can also cause this condition. At the bottom of this page is a simplified block diagram which shows how the different fuel system components relate to each other. Refer to fold-out page FO-1, leave open for reference while you are testing. I This set of tests maybe used when the engine is hard starting, has low power or runs rough. Just follow the path, answering the questions. Additional information and notes are given on the facing page (like this one) when necessary. It is recommended that you refer to your fold-out diagram now because it will help you follow the testing. 2-95