Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSDODGE AND RAM2023DURANGO R/T PLUS, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 42 (6.2L - DTCS P0443 TO P058A)DTC TROUBLESHOOTINGP0455-EVAP SYSTEM LARGE LEAKPOSSIBLE CAUSES
2023 Dodge and Ram Durango R/T Plus, AWD
Possible Causes
2023 Dodge and Ram Durango R/T Plus, AWDSECTION Possible Causes
WARNING: This page is about a different variant/trim than selected.
| 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 .
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.