1986 Ford F-350 Service and Repair Manual

This factory service and repair manual for the 1986 Ford F-350 documents a year in which the 4.9L inline-six is listed as a gasoline engine only, sitting alongside the 5.0L, 5.8L and 7.5L V8s and the 6.9L diesel V8. Trim coverage widens to four, Base, XL, XLT and XLT Lariat, over the two-door standard cab pickup, the four-door crew cab pickup and the two-door cab and chassis. Whichever combination is on the lift, the procedures, specifications, torque values, wiring diagrams and diagnostics are organized system by system.

Engines covered

• 5.8L V8 (351 cu in) — OHV, naturally aspirated, gasoline
• 5.0L V8 (302 cu in) — OHV, naturally aspirated, gasoline
• 7.5L V8 (460 cu in) — OHV, naturally aspirated, gasoline
• 6.9L V8 (420 cu in) — OHV, naturally aspirated, diesel
• 4.9L inline-six (300 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 2-door standard cab pickup
• 4-door crew cab pickup
• 2-door cab & chassis

Trims covered

• Base
• XL
• XLT
• XLT Lariat

Known issues on the 1986 F-350. Two recalls are on federal record: one for outside rear view mirrors that fell short of the federal minimum reflecting area, and one for a spring lock fuel line coupling that might not be fully engaged and could separate under fuel pressure and engine movement, spilling fuel. Owners have filed 17 complaints with NHTSA, clustering on the service brakes, the tires and the electrical system. Brake work, fuel line service and wiring diagnosis are all in the manual, with the torque values and specifications each of them needs.