How To Test A Fuel Solenoid. Put a voltmeter on the solenoid wire and see. When red wire disconnect from positive it will stop holding.
Power from the battery shuts the fuel flow off to the carburetor. Now attempt to start the engine while looking at the test light. We had gas getting in the crank case on one of those engines when not in use.
Answer 1 of 7.
Test for a minimum of 7 Volts DC at the fuel solenoid terminal using a Volt-Ohm meter. When working properly a shut-off solenoid transports diesel fuel from the fuel line to the solenoid though an inlet pipe. We had gas getting in the crank case on one of those engines when not in use. On tab Test Results is Not OK Short indicates that the Fuel Rail Pump Solenoid is damagedshorted.
