What would cause the engine to sputter when accelerating?

Asked by Mar 30, 2015 at 08:33 AM about the 2004 Ford F-150 XLT Ext. Cab

Question type: Maintenance & Repair

The 4.6L starts and idles okay but sputters and shakes when I step on the gas.

1 Answer

15,400

check plugs, wires, and coil before making any purchases. If you have a spark plug miss or two on an engine you may not be able to hear or feel it at idle. Once the engine is under load, like accelerating, and trying to pull the vehicle, the miss becomes obvious.

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