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 TROUBLESHOOTINGP0456-EVAP SYSTEM SMALL LEAKSET CONDITION
2023 Dodge and Ram Durango R/T Plus, AWD
Set Condition
2023 Dodge and Ram Durango R/T Plus, AWDSECTION Set Condition
WARNING: This page is about a different variant/trim than selected.
- If no ESIM Switch closures were recorded and the accumulative timer has reached 70 hours of engine off time and 100 minutes of engine run time, it is determined that a small leak is present. This will take a minimum of 4 straight "fail events".
- All other Evap system faults should be diagnosed before performing the small leak diagnostics.
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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.