How to Jump Start a Ford F-250 / F-350 / F-450 / F-550 Super Duty

1. Connect the positive (+) jumper cable to the positive (+) terminal of the discharged battery.
2. Connect the other end of the positive (+) cable to the positive (+) terminal of the booster vehicle battery.
3. Connect the negative (-) cable to the negative (-) terminal of the booster vehicle battery.
4. Make the final negative (-) connection to an exposed metal part of the stalled engine, away from the battery and fuel injection system, or to a ground point if available.
5. Start the booster vehicle and keep engine speed between 2000 and 3000 RPM on the tachometer.
6. Start the disabled vehicle, then run both engines for three more minutes before removing the cables.

• Do not attach the positive cable to the studs or L-shaped eyelet above the positive (+) terminal; high current may damage fuses.
• Do not connect the second cable to the negative (-) terminal of the battery being jumped; a spark may ignite battery gases.
• Remove the cables in reverse order, then let the engine idle for at least one minute.

Source: 2020 Ford F-250 / F-350 / F-450 / F-550 Super Duty owner's manual, PDF pages 321, 322. Steps are summarized in our own words (AI-assisted, checked against the cited pages 2026-10-18). Other model years can differ; your manual has the final word.