Solving P0455 on Your 2024 Ford Maverick
A P0455 on your 2024 Ford Maverick means the PCM detected a large EVAP leak. On a truck this new, the gas cap is still the most likely cause—but a software update or assembly issue is also possible. Your Maverick is fully under warranty for any EVAP repair.
Symptoms
- Check engine light with P0455
- Possible faint fuel smell
- Gas cap loose or not clicking
- EVAP monitor not completing
Most Likely Causes
- Gas Cap (Very High Likelihood): Not properly seated. Tighten until it clicks firmly.
- Software Calibration (Medium Likelihood): PCM sensitivity may need a Ford TSB update.
- Canister Vent Solenoid (Medium Likelihood): Factory defect. Warranty replacement.
- EVAP Line Fitment (Low Likelihood): Assembly-related loose connection. Warranty-covered.
- Purge Valve (Low Likelihood): Stuck open from factory. Warranty-covered.
What to Do
Tighten the gas cap and drive 2–3 days. If P0455 persists, schedule a Ford dealer visit. They'll check for TSBs, run diagnostics, and repair—all free under warranty.
Warranty Coverage
Your 2024 Maverick is covered by Ford's 3-year/36,000-mile warranty through 2027 and the federal emissions warranty (8 years/80,000 miles) through 2032. Let the dealer handle it.
Hybrid Note
If you have the hybrid Maverick, P0455 has nothing to do with the hybrid system. The EVAP system is separate from the electric drivetrain.
Safe to Drive?
Yes. P0455 has no effect on the Maverick's engine, transmission, or any driving features.