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

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REFERENCE INFORMATION Check the rubber return line from the injection pump to the steel tubing return line. If the rubber line is not clogged, go to 01, page 2-116. If the line is clogged. replace it. Start the engine and see if it stays running. If it doesn’t start or stay running, return to Ji and continue testing. There may be another fuel system fault preventing fuel from reaching this point. If the cold advance solenoid is getting power, the only possibilities that would keep the engine from starting are that fuel is not reaching the cylinders due to a fault in the high-pressure side of the fuel system or nearly all the cylinders have very low compression. It is unlikely that all the cylinders would lose compression at the same time, but you may want to run a Compression Unbalance test (STEIICE-R Test 14) to check this. Repair/replace harness (para. 4-80). TM 9-2320-387-24-l FUEL SYSTEM I DC VOLTAGE O-45 VOLTS STUICE-R TEST 89 clip to the indicated test point, BLACK clip to negative or ground. Start Test 89, DC Volts. reading is in volts. I BAl7ERY VOLTAGE MULTIMETER 1. Set the voltmeter to a DC volts scale of at least 40 volts. 2. Connect the RED lead to positive and the BLACK lead to negative. 3. Be sure to read the correct scale. INJECTfbN PUMP WIRE 5898 2-l 31