F 450 4WD Super Duty V8-7.3L DSL Turbo VIN F (2001)
Starter Solenoid: Testing and Inspection
1. Disconnect the battery negative cable.
2. Using the Digital Multimeter, check the windings of the solenoid as follows:
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Measure the resistance between the starter motor ground terminal and the solenoid case. The resistance reading should be approximately 0.95
ohms.
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An extremely high resistance reading indicates a break or fault in winding continuity. A very low resistance reading indicates a short or ground
in the winding circuit. Either condition is cause for installation of a new solenoid assembly.
