Investigating P0455 on Your 2024 Ram 2500
A P0455 on your 2024 Ram 2500 means a large EVAP leak. This applies to gas-powered 2500s with the 6.4L HEMI. Your truck is fully under warranty. Gas cap first.
Symptoms
- Check engine light with P0455
- Possible fuel smell
- Gas cap not seating
- EVAP monitor incomplete
Top Causes
- Gas Cap Seal (Very High Likelihood): Loose or factory defect. Warranty-covered.
- EVAP Canister Vent Valve (Medium Likelihood): Manufacturing issue. Warranty-covered.
- Purge Solenoid (Medium Likelihood): Factory defect. Warranty-covered.
- Vapor Line (Low Likelihood): Assembly issue. Warranty-covered.
- PCM Calibration (Low Likelihood): Software update. Warranty-covered.
Warranty
Your 2024 Ram 2500 is covered by Stellantis's 3-year/36,000-mile warranty through 2027. Federal emissions (8yr/80k) extends through 2032.
Safe to Drive?
Yes. P0455 doesn't affect the 6.4L HEMI, 4WD, towing, or any HD features.