1989 Ford LTA9000 Service and Repair Manual
This factory service and repair manual for the 1989 Ford LTA9000 adds a fourth engine and a second cab. The 10.5L six-cylinder diesel (638 cu in) joins the turbocharged 10.0L (611 cu in), 14.6L (893 cu in) and 14.0L (855 cu in) inline-sixes, and the tractor truck is now offered as a low-tilt model as well as the medium-conventional one, still in Base trim only. Those two additions are where the 1989 procedures, specifications, torque values, wiring diagrams and diagnostics differ from the year before, with the 10.5L bringing its own specifications and the low-tilt tractor its own procedures.
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, medium conventional
- Tractor truck, low tilt
Trims covered
- Base
Known issues on the 1989 LTA9000. One recall is on federal record for the 1989 LTA9000, concerning the air brakes: the check valves for the secondary service reservoir may not seat properly because of interference between a circular brass guide and the wall of the ferrule it sits in. NHTSA has no owner complaints logged for this year. Air brake components of that kind fall squarely within the manual's procedures, specifications, torque values, wiring diagrams and diagnostics, which also cover the four diesels and both tractor cabs.
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
