Ford 5.0L F-Series/Bronco Spark Plug Wire Routing & Firing Order Decal

This is a Ford Motor Company 'Important Vehicle Information' (VECI-style) underhood decal for the 5.0L V8 engine in F-Series trucks and the Bronco, printed bilingually in English and French. The label warns that, to prevent crossfire (ignition interference between adjacent cylinders), spark plug wires for cylinders 1, 3, 5 and 6 must be routed exactly as shown in the accompanying diagram. The diagram depicts the engine with the left bank cylinders numbered 4, 3, 2, 1 and the right bank cylinders numbered 8, 7, 6, 5, with the critical wires (1, 3, 5, 6) drawn in bold along with the wire-loom clips that hold them in the correct positions. The bottom of the label states the firing order for the 5.0L engine: 1-3-7-2-6-5-4-8, repeated in French as 'Ordre d'allumage.' The label carries the Ford part number F4TE-6176-AA. A reader can learn the correct spark plug wire routing, cylinder numbering layout, and firing order for the 5.0L F-Series/Bronco engine, which is essential when replacing plug wires or diagnosing misfire/crossfire problems.