Decoding the P0440 on Your 2024 Dodge Durango
A P0440 code on your 2024 Dodge Durango means the PCM has detected an EVAP system malfunction. Your brand-new three-row SUV is fully covered under Stellantis' factory warranty, making this a dealer-first situation.
The 2024 Durango EVAP System
The 2024 Durango continues with the 3.6L Pentastar V6 or 5.7L HEMI V8 and Stellantis' proven EVAP design:
- NVLD Module — Natural Vacuum Leak Detection
- Purge Solenoid Valve — Engine bay vapor routing
- Vent Valve — System sealing and venting
- Charcoal Canister — Vapor storage
- Fuel Filler Cap — Screw-on or capless depending on trim
Most Likely Causes on a New Durango
- Fuel Filler Issue (35%) — Gas cap not seated or capless filler debris. Cost: $0 to clean/reseat.
- Factory Assembly Issue (22%) — EVAP connection not fully secured. Cost: $0 under warranty.
- NVLD Module Defect (15%) — Factory defect. Cost: $0 under warranty.
- Purge Valve Defect (12%) — Intermittent fault. Cost: $0 under warranty.
- Software Calibration (10%) — PCM update needed. Cost: $0 under warranty.
- Vent Valve Issue (6%) — Not sealing properly. Cost: $0 under warranty.
Warranty Coverage
- Basic: 3 years/36,000 miles
- Powertrain: 5 years/60,000 miles
- Federal Emissions: Additional coverage
Check the fuel filler first. If the code persists, your Dodge dealer will handle the rest at no cost using wiTECH diagnostics.
The Verdict
The P0440 on your 2024 Durango is a warranty repair. Check the fuel filler, then schedule a dealer appointment. Don't attempt DIY repairs on a vehicle with full factory coverage.