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Re: 2015 F550 Intermittent crank no start... but in the stangest way that I have ever seen.
Soon I will put an O-scope on it and measure starter current and voltage drop across the starter solenoid on a dual trace.
I'll get the normal conditions and also try to capture a failed start.
At least then we'll know if the starter is having to work harder during the failed start condition.
Also at the same time we'll learn if there is an intermittent solenoid issue dropping significant voltage across the high current terminals.
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