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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (3.2L - DTCS P0441 To P0617) >> DTC Troubleshooting >> P0455-EVAP System Large Leak >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
EVAP SYSTEM COMPONENTS OR PLUMBING LEAK
ESIM INTERNAL CHECK VALVES LEAKING

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