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How to Wire a Ford Solenoid

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A Ford starter solenoid is one of the key components to the starting system of most older Ford vehicles. It’s essentially a big relay, which provides power from the battery to the starter motor when the ignition key is turned over, starting the vehicle. These solenoids are typically the first thing that goes out when a Ford engine won’t turn over and are easy to replace. Wiring them from scratch isn’t difficult either, but it does take a little bit of time.

Step 1

Run a section of 4-gauge cable from the positive terminal on the battery to the “A” post on the side of the solenoid. Then run a section of 4-gauge cable from the “A” post on the side of the solenoid to the “BATT” terminal on the starter motor. Strip 1/2 inch of shielding off each end of the cable using the wire strippers and ,…