1991 Ford LNT9000 Service and Repair Manual
This factory service and repair manual for the 1991 Ford LNT9000 is for the short-conventional tractor truck and straight truck, in Base trim, with five diesels: two six-cylinder engines, the 10.5L (638 cu in) and the 10.3L (629 cu in), and three turbocharged inline-sixes, the 10.0L (611 cu in), the 14.6L (893 cu in) and the 14.0L (855 cu in). The six-cylinder pair and the turbocharged trio have their own specifications and torque values, and the manual's procedures, wiring diagrams and diagnostics cover each of the five in both chassis types.
Engines covered
- 10.5L six-cylinder (638 cu in) — diesel
- 10.0L inline-six (611 cu in) — turbocharged, diesel
- 14.6L inline-six (893 cu in) — turbocharged, diesel
- 14.0L inline-six (855 cu in) — turbocharged, diesel
- 10.3L six-cylinder (629 cu in) — diesel
Body styles covered
- Tractor truck, short conventional
- Straight truck, short conventional
Trims covered
- Base
Known issues on the 1991 LNT9000. No recalls and no owner complaints are on record with NHTSA for the 1991 LNT9000, so its federal record is clean. The manual covers the 10.5L and 10.3L six-cylinder diesels, the turbocharged 10.0L, 14.6L and 14.0L inline-sixes and the short-conventional tractor and straight-truck chassis, with procedures, specifications, torque values, wiring diagrams and diagnostics for all of them.
