This factory service and repair manual for the 1984 Ford LN800 documents a short-conventional straight truck in Base trim with four V8 choices: naturally aspirated 6.1L (370 cu in) and OHV 7.0L (429 cu in) engines for gasoline or propane, and the 8.2L diesel (501 cu in) in both naturally aspirated and turbocharged versions. The manual separates the four with their own procedures, specifications and torque values and supplies wiring diagrams and diagnostics for the single chassis.
Engines covered
- 6.1L V8 (370 cu in) — naturally aspirated, gasoline or LPG (propane)
- 8.2L V8 (501 cu in) — turbocharged, diesel
- 7.0L V8 (429 cu in) — OHV, naturally aspirated, LPG (propane) or gasoline
- 8.2L V8 (501 cu in) — naturally aspirated, diesel
Body styles covered
- Straight truck, short conventional
Trims covered
- Base
Known issues on the 1984 LN800. Four engines is a long list for a truck of this size: the 6.1L and OHV 7.0L V8s on gasoline or propane, plus the 8.2L diesel V8 in both naturally aspirated and turbocharged form. The two 8.2Ls share a block but not their service data, since boost, charge plumbing and injection settings separate them, so a technician has to read the right column. No recall and no owner complaint stands against the year.
