Decoding the P0440 on Your 2023 Dodge Charger
A P0440 code on your 2023 Dodge Charger — the final model year of the iconic LD-platform muscle sedan — means the PCM has detected an EVAP system malfunction. As a penultimate production year with years of refinement, the EVAP system is well-proven, and this code is typically a minor issue.
The 2023 Charger EVAP System
The final LD Charger, available with the 3.6L Pentastar, 5.7L HEMI, 6.4L HEMI, or 6.2L supercharged HEMI, uses Stellantis' mature EVAP design:
- NVLD Module — Natural Vacuum Leak Detection, refined over years of production
- Purge Solenoid Valve — Engine bay vapor routing
- Vent Valve — System venting and sealing
- Charcoal Canister — Vapor storage
- Fuel Filler Cap — Traditional screw-on style
Most Likely Causes
- Gas Cap Issue (32% of cases) — Not properly seated after fueling or early gasket wear. Cost: $10–$22.
- NVLD Module (20%) — Even on newer vehicles, the NVLD can have intermittent issues. Cost: $35–$80, $100–$230 with labor. $0 under warranty.
- Purge Valve (18%) — Possible factory defect or early heat-related wear. Cost: $25–$60, $90–$210 with labor. $0 under warranty.
- Factory Connection Issue (12%) — An EVAP hose not fully seated. Cost: $0 under warranty.
- Vent Valve (10%) — Premature failure or defect. Cost: $30–$65, $90–$220 with labor. $0 under warranty.
- Software Issue (8%) — PCM calibration. Cost: $0 under warranty.
Warranty Coverage
Your 2023 Charger should be within Stellantis' warranty:
- Basic Warranty: 3 years/36,000 miles
- Powertrain: 5 years/60,000 miles
Try the gas cap first. If the code persists, schedule a dealer appointment for warranty service.
The Verdict
The 2023 Charger benefits from years of LD-platform refinement. A P0440 is most likely a gas cap issue or minor component fault covered under warranty. Check the cap, then let the dealer handle it — especially important to preserve the value of this final-year collector's model.