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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1638 (5.7L - DTCS P018D To P0520 - 2500 Hd) >> DTC Troubleshooting >> P0455-EVAP System Large Leak >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 RAM 2500 HD. 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  . 

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