Solving P0446 on Your 2024 Dodge Durango
A P0446 code on your 2024 Dodge Durango signals an EVAP vent control circuit malfunction. The Durango continues on the WD platform with the 3.6L Pentastar V6 or 5.7L HEMI V8, using Stellantis' NVLD (Natural Vacuum Leak Detection) system for EVAP monitoring.
Under full warranty, this is a no-cost dealer repair. Stellantis' wiTECH system provides precise EVAP diagnostics.
Symptoms Present
- Check engine light with P0446
- Fuel fill difficulty
- EVAP readiness monitor incomplete
- Possible fuel odor
Top Suspects
- NVLD Unit Defect (High Likelihood): Manufacturing variation in the NVLD assembly. Warranty-covered replacement.
- PCM Software Calibration (High Likelihood): EVAP monitoring update for the 2024 model year. Warranty-covered reflash.
- Purge Solenoid Issue (Medium Likelihood): Defective purge solenoid affecting EVAP flow monitoring. Warranty-covered.
- NVLD Connector or Wiring (Medium Likelihood): Factory assembly issue. Warranty-covered.
- Gas Cap Seal (Low Likelihood): Factory fit issue. Warranty-covered.
What to Do
Take your Durango to a Dodge dealer. Under warranty, wiTECH diagnostics and all EVAP repairs are free. The dealer will check for applicable TSBs.
Full Warranty Coverage
Your 2024 Durango is covered by Dodge's 3-year/36,000-mile basic and 5-year/60,000-mile powertrain warranty. All EVAP repairs are free.
Safe to Drive?
Yes. P0446 has no effect on your Durango's engine power, transmission, AWD, towing capacity, or third-row passenger safety systems.