I recently took my 2006 ford expedition in for repair. Had the spark plugs replaced. I got it back, and now the engine light is coming on. The error codes are po420 and po430. The engine light has

Asked by seahawks Nov 01, 2013 at 05:04 PM about the 2006 Ford Expedition Eddie Bauer 4WD

Question type: Maintenance & Repair

Never come on until I got it out of the shop.
?The repair shop was a Ford service
department. What should I do?

3 Answers
15,935

Larry answered 11 years ago

You have the right answer from Tom, above.

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