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P0457 SUBARU -

Fuel cap is not off, no fuel odor, no hoses to charcoal canister appear to be loose, worn, or missing, but light keeps coming back on after clearing the code. What could be the cause and repair?

Vehicle: 2003, Subaru, Forester
asked Apr 17, 2012 by richsufan (101 points)

1 Answer

HI there,

The most common cause I have found for this is the drain valve under the car bolted tot he canister. Most of the time the wire breaks and the valve is not the problem.
answered 1 day ago by Carguy1 (2,871 points)

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