My '05 F150 has a rough idle and when going up hills, loses power an the engine light flashes and it struggles to go over 40mph.

Asked by Jan 04, 2015 at 04:36 PM about the 2005 Ford F-150 XLT SuperCab

Question type: Maintenance & Repair

2 Answers

74,155

The check engine light is flashing to warn you that the engine is misfiring and damaging the catalytic converter. I'd suggest doing a tune up first. HTH. -Jim

21,690

Change the plug wires along with the plugs. A tune-up should include changing the wires also.

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