Re: R10 Overdrive Issue
When I was having intermittent trouble with my OD, i mounted a truck clearance light under the dash with an alligator clip that could be moved under the hood. I clipped it to the terminal going to the solenoid and when the OD wouldn't engage, I could tell if the power was going through the rely or no. No light, relay problem, Light on, solenoid problem.
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