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P0451 Ford Expedition w/ 48000 miles just came on

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Just bought this vehicle x3 weeks ago 48000 miles. Put gas in last night and now Check engine light is on w/ Code P0451 and P1450

Vehicle: 2007 expedition Eddie bauer 5.4 liter 4x4

1 Answer

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Hi there,

These 2 codes are realated and could be simply the fuel cap is not tight. If you check the cap and it is tight, then the issue may be with the vent control valve. This would have to be tested.

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