How to Wire a Ford Solenoid | It Still Runs How to Wire a Ford Solenoid by Russell Wood . 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 1986 ford tempo | eBay Find great deals on eBay for 1986 ford tempo. Shop with confidence. Skip to main content. eBay Logo: 41 product ratings - New Ford Starter Solenoid Relay Switch for Ford SW1951 - Assembled in USA. $12. 1986 FORD CAR Manual WIRING Diagram TEMPO TOPAZ Electrical and Vacuum Systems. New (Other) $8. Buy It Now.