2010 Ford F150 - Fuel Fill Codes
Posted: Fri Jun 28, 2013 7:33 am
Do Not replace the fuel fill pipe unless the smoke test shows it to be leaking. Canister vent valve fails often its on the canister. The smoke will come out behind the intake manifold by the fire wall. There are no parts that fail behind the manifold the vent for the valve is located in a you can't see me area. but the smoke shows when the valve is bad. Code is P0456/