1989 Ford LNT9000 Service and Repair Manual
This factory service and repair manual for the 1989 Ford LNT9000 covers four diesels, the 10.5L six-cylinder (638 cu in) and three turbocharged inline-sixes of 10.0L (611 cu in), 14.6L (893 cu in) and 14.0L (855 cu in), in a short-conventional tractor truck or straight truck, in Base trim. The 10.5L is listed without a turbocharger, which separates its specifications and diagnostics from those of the other three. The manual's procedures, torque values and wiring diagrams cover all four engines and both chassis types, and its air brake coverage is relevant to this year in particular.
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
Body styles covered
- Tractor truck, short conventional
- Straight truck, short conventional
Trims covered
- Base
Known issues on the 1989 LNT9000. One recall stands on the federal record for the 1989 LNT9000, involving the air check valves of the secondary service reservoir, which may not seat properly because of a mechanical interference between a circular brass guide and the wall of a cylindrical ferrule. There are no owner complaints logged with NHTSA for the 1989 LNT9000. The manual's air brake procedures, specifications and diagnostics cover the reservoir and check valve hardware that recall concerns, and its engine coverage handles the four diesels.
SECONDARY SERVICE RESERVOIR AIR CHECK VALVES MAY NOT SEAT PROPERLY DUE TO A MECHANICAL INTERFERENCE CONDITION BETWEEN A CIRCULAR BRASS GUIDE AND THE WALL OF A CYLINDRICAL FERRULE I
