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Home >> Jeep >> 2021 >> Gladiator Mojave, Part Time T/Case Control, Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 3.6L (GPEC 2A) - DTCS P0330 To P0480 >> DTC Troubleshooting >> P0455-EVAP System Large Leak >> Possible Causes
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Possible Causes

Possible Causes
EVAP SYSTEM PLUMBING LEAKING
CHARCOAL CANISTER LEAKING
FUEL TANK OR FUEL PUMP SEAL LEAKING
ESIM SWITCH OR WIRING ISSUE
ESIM MOUNTING SEAL LEAKING
ESIM INTERNAL CHECK VALVES LEAKING
ESIM MOUNTED INCORRECTLY ON THE CANISTER
PURGE SOLENOID LEAKING

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .