Answer
Jun 06, 2025 - 02:55 AM
Yes, this manual includes coverage for the 6.9L V8 diesel engine used in certain F-Series models during the early 1980s. That’s the International Harvester-built IDI diesel, and it’s explicitly listed in the engine chart.
If you're working on an F-250 or F-350 with the 6.9 diesel, this manual covers what you need — from maintenance and repairs to fuel system service and diagnostics specific to that engine.
