Join Now
International Automotive Technicians Network

P0456 Diagnostic Trouble Code Discussion for September 2010

EVAP System Small Leak


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2008 Dodge Ram 1500 Truck SLT 5.7L MIL Lamp on VIN: 1D7HA18298
P0456: Evap small leak. We replaced this gas cap 3 times with an oem on the last time. Comes back again found the canister all busted up sits in front of tank we replace it and the filter & hoses. Cleared codes. Comes back again same codes smoke test can not find no leaks . Also ...
September 13, 2010
2003 Dodge Durango SLT 4.7L MIL Lamp on VIN: 1D4HS48NX3
P0456: EVAP System Small Leak (0.020") Detected. this durango keeps setting a p0456 small leak detected.I have used a smoke machine several times and found nothing.I have smoked the system hot and cold.First time vehicle was in found canister hoses bad replaced came back week later same code.Replaced purge v...
September 20, 2010
2000 Chrysler 300M 3.5L MIL Lamp on VIN: 2C3HE66G9Y
P0456: Very small evap. Leak. ... CODE P0456 PASSED SMOKE TEST AND BAY TEST. VEHICLE CAME BACK ABOUT A MONTH LATER HAD CODES P0456 VERY SMALL EVAP LEAK AND P0442 SMALL EVAP LEAK. SMOKE TEST5ED AGAIN IT PASSED BUT THE LDP FAILED THE VACUUM TEST. SO WE REPLACED THE LDP AND CUSTOMER TOOK CAR....
September 22, 2010
2008 Dodge Ram 1500 Truck SLT 5.7L MIL Lamp on VIN: 1D7HA18298
P0456: Evap small leak. We replaced this gas cap 3 times with an oem on the last time. Comes back again found the canister all busted up sits in front of tank we replace it and the filter & hoses. Cleared codes. Comes back again same codes smoke test can not find no leaks . Also ...
September 13, 2010
2003 Dodge Durango SLT 4.7L MIL Lamp on VIN: 1D4HS48NX3
P0456: EVAP System Small Leak (0.020") Detected. this durango keeps setting a p0456 small leak detected.I have used a smoke machine several times and found nothing.I have smoked the system hot and cold.First time vehicle was in found canister hoses bad replaced came back week later same code.Replaced purge v...
September 20, 2010
2000 Chrysler 300M 3.5L MIL Lamp on VIN: 2C3HE66G9Y
P0456: Very small evap. Leak. ... CODE P0456 PASSED SMOKE TEST AND BAY TEST. VEHICLE CAME BACK ABOUT A MONTH LATER HAD CODES P0456 VERY SMALL EVAP LEAK AND P0442 SMALL EVAP LEAK. SMOKE TEST5ED AGAIN IT PASSED BUT THE LDP FAILED THE VACUUM TEST. SO WE REPLACED THE LDP AND CUSTOMER TOOK CAR....
September 22, 2010