D 350 Pickup L6-359 5.9L DSL (1989)
Starter Motor: Testing and Inspection
Starter Testing
Before you troubleshoot the starting motor, make sure the battery terminals are not loose or corroded.
ENGINE DOES NOT CRANK
If the solenoid does not make an audible sound, check for loose wiring connections.
Check the voltage at the solenoid battery post.
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No voltage - check the condition of the battery. Check the connections at the battery, engine and solenoid.