1998 Ford LT9511 Service and Repair Manual
This factory service and repair manual for the 1998 Ford LT9511 covers a medium-conventional tractor truck and straight truck in Base trim with eight diesel engines. The list includes the 10.5L six-cylinder (638 cu in), the turbocharged 12.0L six-cylinder (732 cu in), the turbocharged 14.0L inline-six (855 cu in), the turbocharged 10.8L inline-six (661 cu in), the turbocharged 14.6L inline-six (893 cu in), the turbocharged 10.3L inline-six (629 cu in) and the turbocharged, aftercooled 11.1L (677 cu in) and 12.7L (774 cu in) inline-sixes. Each engine brings its own procedures, specifications, torque values, wiring diagrams and diagnostics to the 1998 manual, and only the 10.5L is listed without a turbocharger.
Engines covered
- 10.5L six-cylinder (638 cu in) — diesel
- 12.0L six-cylinder (732 cu in) — turbocharged, diesel
- 14.0L inline-six (855 cu in) — turbocharged, diesel
- 10.8L inline-six (661 cu in) — turbocharged, diesel
- 14.6L inline-six (893 cu in) — turbocharged, diesel
- 10.3L inline-six (629 cu in) — turbocharged, diesel
- 11.1L inline-six (677 cu in) — turbocharged, aftercooled, diesel
- 12.7L inline-six (774 cu in) — turbocharged, aftercooled, diesel
Body styles covered
- Tractor truck, medium conventional
- Straight truck, medium conventional
Trims covered
- Base
Known issues on the 1998 LT9511. The 1998 LT9511 shows no recalls on federal record and no owner complaints logged with NHTSA. For an eight-engine truck that means the manual's procedures, specifications, torque values, wiring diagrams and diagnostics do the ordinary work of telling one diesel from another, from the 10.5L six-cylinder to the turbocharged 14.6L inline-six, on the medium-conventional tractor and straight-truck chassis.
