1989 Ford LTS9000 Service and Repair Manual
This factory service and repair manual for the 1989 Ford LTS9000 covers three body configurations, a medium conventional tractor, a low tilt straight truck and a medium conventional straight truck, with four diesel engines available in Base trim. The 10.5L six-cylinder of 638 cubic inches runs without a turbocharger, while the 10.0L, 14.0L and 14.6L inline-sixes are all turbocharged. The manual separates their specifications, torque values, wiring diagrams and diagnostics so that a figure meant for one engine is never applied to another.
Engines covered
- 10.5L six-cylinder (638 cu in) — diesel
- 10.0L inline-six (611 cu in) — turbocharged, diesel
- 14.0L inline-six (855 cu in) — turbocharged, diesel
- 14.6L inline-six (893 cu in) — turbocharged, diesel
Body styles covered
- Tractor truck, medium conventional
- Straight truck, low tilt
- Straight truck, medium conventional
Trims covered
- Base
Known issues on the 1989 LTS9000. One recall appears on the federal record for this year. It concerns the air check valves serving the secondary service reservoir, which may fail to seat because a circular brass guide interferes with the wall of a cylindrical ferrule. No complaints from owners appear in the NHTSA record. Anyone tracing that condition will spend time in the air brake sections of this manual, where the procedures, specifications and diagnostics for the reservoir and its valve circuit are set out.
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
