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Grand Future Air Dried Beef Dog Food
Air Dried Dog Food | Real Beef

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PO440 code


awm
05-18-2006, 11:44 AM
Anyone know the cause/fix of the PO440 code for a 2000 Buick Century?
BNaylor
05-18-2006, 12:19 PM
Normally a loose or defective gas cap. It is a large evaporative emissions system leak which can be caused by many things.

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awm
05-18-2006, 12:37 PM
Thanks for the quick reply. I will check it when I get home.

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