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P0456 Diagnostic Trouble Code Discussion for October 2012

EVAP System Small Leak

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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2009 Mercury Mariner 2.5L MIL Lamp on VIN: 4M2CU81799
P0456: Small Evap Leak. Vechile came in today after being driven about 100 miles, Ck Engine Light code PO451 was again inplanted, proceded with smoke agian... Found Smoke protruding from "CAPLESS Quick Fill" Filler Neck... Ordered new ford part and installed. Now the system w...
October 09, 2012
2004 Toyota RAV4 2.4L MIL Lamp on
P0456: EVAP System Very Small Leak Detected. I have smoked the complete evap system and the gas tank, filler neck and canister individualy. The system holds pressure. When the vahicle preforms a self evap test it doesn't hold vacuum for 5 minutes. I have replaced the canister and fuel cap.
October 13, 2012
2010 Ford Escape XLT 2.5L MIL Lamp on VIN: 1FMCU9D77A
P0456: Evap emission system leak detected very small leak. This customer came in with these two codes stored in the pcm. Our snapon scanner has no bi-directional controls for this vehicle, and our all data is down for the day. Can anyone help me out with this or point me in the right direction?
October 23, 2012