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2004 F150: I accelerate hard it bucks and jerks..smokes

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I have a 2004 F150...
I have a 2004 F150. When I accelerate hard it bucks and jerks, sometimes backfires and smokes. Sometimes it works just fine. Seems to get better if I pump the accelerator pedal? I know it is drive by wire engine code 5. 148,000 miles.
Submitted: 8 years ago.Category: Ford
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Answered in 6 minutes by:
6/30/2010
Ford Mechanic: CTFordTech, Ford Technician replied 8 years ago
CTFordTech
CTFordTech, Ford Technician
Category: Ford
Satisfied Customers: 4,981
Experience: Ford Master School Certified, Kia Elite School Certified, ASE Certified, A/C 609 Certified
Verified

Hello and Thank you for choosing Just Answer.

 

Looking at the miles you have on the F150, It sounds like you may have some ignition problems like worn spark plugs or weak ignition coils. If the check engine light is not on, It will make it more difficult. A Ford dealer has a tool that they can use that will do something called a "Power balance and coil stress test" both are used to pinpoint weak cylinders and ignition systems and you may want to look into that.

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