1987-93 Ford V8 Spark Plug Wire Routing & Firing Order 1-5-4-2-6-3-7-8 Diagram

This document is a scanned factory-style illustration showing the spark plug wire routing and distributor cap arrangement for 1987–93 vehicles (header printed as "1997-93 VEHICLES," apparently a scan/typo of 1987-93) with a V8 engine. The main drawing shows the engine from above with the distributor cap assembly, the suppressor wire assembly (part reference -12A012-), the ignition coil wire connection, and two wire-and-bracket assemblies: -12280- for the right-hand bank (cylinders 1, 2, 3, 4) and -12281- for the left-hand bank (cylinders 5, 6, 7, 8). Numbered callouts identify each plug wire at both the distributor cap towers and the bracket ends. A lower detail (View A) shows the distributor cap from above, identifying each tower's cylinder number, the center coil tower (C), and a sleeve (P.I.A.). The stated firing order is 1-5-4-2-6-3-7-8. Arrows indicate the front of the engine for orientation in both views. A reader can use this page to correctly route and connect spark plug wires from the distributor cap to each cylinder and verify the firing order.