Investigating P0446 on Your 2022 Dodge Durango
A P0446 code on your 2022 Dodge Durango indicates an EVAP vent control circuit malfunction. The Durango uses the WD platform with Stellantis' NVLD (Natural Vacuum Leak Detection) system, available with the 3.6L Pentastar V6 or 5.7L HEMI V8.
Check your warranty status—the basic warranty (3yr/36k) may still be active depending on purchase date and mileage. The powertrain warranty (5yr/60k) provides additional coverage through 2027.
Clues and Symptoms
- Check engine light with P0446 stored
- Fuel fill issues or pump shutoff
- EVAP readiness monitor incomplete
- Possible fuel odor
Top Suspects
- NVLD Switch/Seal Failure (High Likelihood): The NVLD unit's internal components degrade. Replacement costs $150–$280 if not warranty-covered.
- Purge Solenoid Malfunction (High Likelihood): Sticking purge solenoid disrupts EVAP system flow monitoring. Replacement runs $120–$230.
- NVLD Wiring or Connector (Medium Likelihood): Underbody connector corrosion from road exposure. Repair costs $80–$180.
- EVAP Hose Deterioration (Medium Likelihood): Hose cracks or disconnections in the EVAP routing. Repair runs $60–$150.
- Gas Cap Seal (Low Likelihood): Worn seal on a relatively new vehicle. Replacement is $10–$25.
How to Investigate
If still under warranty, go directly to a Dodge dealer for wiTECH diagnostics. For DIY diagnosis, scan all codes, check the gas cap seal, and inspect the NVLD connector under the vehicle. Commanded NVLD testing requires wiTECH.
Warranty and Cost
Check if the basic warranty (3yr/36k) is still active. The powertrain warranty (5yr/60k) extends through 2027, and the federal emissions warranty (8yr/80k) through 2030. Under warranty, all repairs are free. Out of pocket: $120–$280.
Safe to Drive?
Yes. P0446 doesn't affect your Durango's engine, transmission, AWD, towing capacity, or safety systems. Full three-row SUV functionality is maintained.