Solving P0446 on Your 2024 Lincoln Aviator
A P0446 code on your 2024 Lincoln Aviator signals an EVAP vent control circuit malfunction. The Aviator uses the 3.0L twin-turbo V6 on the CD6 platform, with the Grand Touring offering a plug-in hybrid powertrain. The EVAP system features a PCM-controlled canister vent solenoid.
Under full warranty, this is a no-cost dealer repair.
Symptoms Present
- Check engine light with P0446
- Fuel fill difficulty
- EVAP readiness monitor incomplete
- Grand Touring: EVAP monitors run less frequently
Top Suspects
- Canister Vent Solenoid Defect (High Likelihood): Manufacturing variation. Warranty-covered.
- PCM Software Calibration (High Likelihood): EVAP monitoring update. Warranty-covered reflash.
- Purge Valve Issue (Medium Likelihood): Defective purge valve. Warranty-covered.
- Vent Solenoid Wiring (Medium Likelihood): Factory assembly issue. Warranty-covered.
- Gas Cap Seal (Low Likelihood): Factory fit. Warranty-covered.
What to Do
Take your Aviator to a Lincoln dealer. FDRS diagnostics and all EVAP repairs are free under warranty.
Full Warranty Coverage
Your 2024 Aviator is covered by Lincoln's 4-year/50,000-mile basic and 6-year/70,000-mile powertrain warranty. All EVAP repairs are free.
Safe to Drive?
Yes. P0446 doesn't affect your Aviator's twin-turbo power, AWD, air suspension, or PHEV operation.