Investigating P0440 on Your 2024 Nissan Frontier
A P0440 code on your 2024 Nissan Frontier means the EVAP system has flagged a malfunction. The Frontier's 3.8L V6 and 9-speed automatic are paired with a refined EVAP system. Under warranty, this should be a quick and free fix.
Symptoms
- Check engine light on
- Possible fuel smell
- Slight MPG decrease
- Fueling difficulties
- Emissions failure
The Frontier drives, tows, and goes off-road normally. P0440 has no performance impact.
Causes
- Gas Cap — Most common. Estimated repair: $0–$25 (warranty).
- Purge Volume Control Valve — Nissan V6 known issue. Estimated repair: $0–$210 (warranty).
- Canister Vent Control Valve — Familiar Nissan failure. Estimated repair: $0–$225 (warranty).
- Leak Detection Pump — Self-test component. Estimated repair: $0–$355 (warranty).
- Software Update — Possible calibration refinement needed. Estimated repair: $0 (warranty).
What to Do
Take your 2024 Frontier to the Nissan dealer. All repairs are covered under the 3-year/36,000-mile bumper-to-bumper warranty at no cost.
Concern Level
Very low. P0440 is minor. Safe to drive.