I replaced the fuel pump/filter, and all the plugs. When engaged in to drive or reverse it sputters. Also has a hiccup while driving. Used injection cleaner. No help. What can problem be?

Asked by Nov 08, 2015 at 01:37 PM about the 1999 Ford F-350 Super Duty XLT Crew Cab LB 4WD

Question type: Maintenance & Repair

2 Answers


Is the check engine light on? I take it you have a gasoline engine? If so you may have a coil going bad. Eventually it will code and you will know which one is bad.

Yes it is gas. Check engine did come on. Code read misfire but didn't say which coil was bad. Cleared out check engine light. Just wait to come on again?

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