Join Now
International Automotive Technicians Network

P0456 Diagnostic Trouble Code Discussion for January 2012

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
2005 BMW X5 3.0i 3.0L MIL Lamp on VIN: 5UXFA135X5
P0456: Evap slow leak. I have this X5 with a evap leak. I smoke tested the evap system and could not find any leaks. I put a gas cap on and road tested the light did not come back on yet but the check the gas cap warnning did. Is there a common leak point for tis car?
January 02, 2012
2005 BMW X5 3.0i 3.0L MIL Lamp on VIN: 5UXFA135X5
P0456: Evap slow leak. I have this X5 with a evap leak. I smoke tested the evap system and could not find any leaks. I put a gas cap on and road tested the light did not come back on yet but the check the gas cap warnning did. Is there a common leak point for tis car?
January 04, 2012
2001 Subaru Outback Limited 2.5L MIL Lamp on VIN: 4S3BH68611
P0456: EVAP System Very Small Leak Detected. ... a problem with the evap system setting a code p0456 after 2 drive cycles as it should. we have a leak somewhere i just cant seem to find it. I have smoked this vehicle several times and cant find a leak, replaced canister for a leak and the pressure valve ...
January 11, 2012
2003 Mercedes-Benz E500 5.0L MIL Lamp on VIN: WDBUF70J63
P0456: Purge control system has a slight leak. ... back the third time with same evap code p0456 or p2075 evap small leak. Replace all these componets and light will back on in a months. Smoke test, system pressure hold nice and tight. Remove seat and inspect and no leak found at all. Perform fuel tank lea...
January 12, 2012
2004 Mitsubishi Endeavor XLS 3.8L MIL Lamp on VIN: 4A4MN31S54
P0456: EVAP Leak Monitor Very Small Leak Detected. ... with a P0456 Evap very small leak detected code. At that time I did a scanner evap test and smoke test on the evap system. Didn't find a problem. I cleared the code. About 2 weeks later the coode came back. I found a small leak out of the vent solenoid at ...
January 31, 2012
2005 BMW X5 3.0i 3.0L MIL Lamp on VIN: 5UXFA135X5
P0456: Evap slow leak. I have this X5 with a evap leak. I smoke tested the evap system and could not find any leaks. I put a gas cap on and road tested the light did not come back on yet but the check the gas cap warnning did. Is there a common leak point for tis car?
January 02, 2012
2005 BMW X5 3.0i 3.0L MIL Lamp on VIN: 5UXFA135X5
P0456: Evap slow leak. I have this X5 with a evap leak. I smoke tested the evap system and could not find any leaks. I put a gas cap on and road tested the light did not come back on yet but the check the gas cap warnning did. Is there a common leak point for tis car?
January 04, 2012
2001 Subaru Outback Limited 2.5L MIL Lamp on VIN: 4S3BH68611
P0456: EVAP System Very Small Leak Detected. ... a problem with the evap system setting a code p0456 after 2 drive cycles as it should. we have a leak somewhere i just cant seem to find it. I have smoked this vehicle several times and cant find a leak, replaced canister for a leak and the pressure valve ...
January 11, 2012
2003 Mercedes-Benz E500 5.0L MIL Lamp on VIN: WDBUF70J63
P0456: Purge control system has a slight leak. ... back the third time with same evap code p0456 or p2075 evap small leak. Replace all these componets and light will back on in a months. Smoke test, system pressure hold nice and tight. Remove seat and inspect and no leak found at all. Perform fuel tank lea...
January 12, 2012
2004 Mitsubishi Endeavor XLS 3.8L MIL Lamp on VIN: 4A4MN31S54
P0456: EVAP Leak Monitor Very Small Leak Detected. ... with a P0456 Evap very small leak detected code. At that time I did a scanner evap test and smoke test on the evap system. Didn't find a problem. I cleared the code. About 2 weeks later the coode came back. I found a small leak out of the vent solenoid at ...
January 31, 2012