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P0455 Diagnostic Trouble Code Discussion for October 2013

EVAP System Large Leak

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Trouble Ticket Help Requests for DTC P0455
Help Request Posted
2003 Chrysler Town & Country LXi 3.8L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2C4GP54L93
P0455: EVAP System Large Leak (0.080") Detected. Thank you in advance for any assistance today, this vehicle has been driving us up the wall! Sorry for the really long description but I have no other choice, I want you all to have as much background as possible. The main problem with this vehicle is a stalli...
October 14, 2013
2004 Chevrolet Silverado 1500 LS 5.3L MIL Lamp on VIN: 2GCEK13T74
P0455: EVAP System Large Leak Detected. ... this year with a check engine light on and customer complained that he couldn't refuel the truck without the pump handle kicking off immediately. He said it took him over 10 minutes to pump 4 gallons of gas in the tank. I scanned it and it had a code P0455...
October 17, 2013
2005 GMC Yukon Denali 6.0L MIL Lamp on VIN: 1GKEK63U75
P0455: EVAP System Large Leak Detected. this one is killing me. Sets a p0455 ,i have checked for evap leks and have found none. I saw on the scan tool that the fuel tank pressure is 15.33 in of h20. We pulled the tank down and did a vissual inspection of wiring and installed a fuel pressure sensor, ...
October 23, 2013