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Evap System Leak V70-XC70

The P0455 is defined as a LARGE leak. Other codes are given for SMALL, VERY SMALL, and MISSING GAS CAP leaks. It could be the gas cap. The smoke test you asked about can be done by other than Volvo and was the only way the dealer could find a cracked tube weld in my system. In one respect you're lucky it's LARGE. My VERY SMALL took the dealer forever to find using smoke. BTW, if it's fixed it will reset itself over time(some days) or it can be reset with a scan tool.






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