what causes 2004 Sport Trac to hesitate and jerk when accelerating?

check the fluid it may need a transmission service ,fluid and filter change when the fluids get old and hot so many times they bresk down and you loose your protectin

I would look at the plugs and wires for missfires. common issue. Roy

If you are still having problems, I can help. Jeremy at Triangle Auto & Cycle Repair 919-291-8999 Ford Master Certified.