A P0420 diagnostic code on your 2016 Ford F-150 indicates that Bank 1's catalytic converter efficiency has fallen below acceptable thresholds. At 8+ years old, natural wear is expected.
2016 F-150 Engine Options
- 3.5L V6: 282 hp
- 2.7L EcoBoost V6: 325 hp
- 3.5L EcoBoost V6: 365 hp
- 5.0L V8: 385 hp
All have dual exhaust banks - P0420 affects Bank 1.
Common Causes
- Converter Aging: Natural wear at 8+ years
- O2 Sensor Wear: Original sensors may need replacement
- Years of Truck Use: Towing and hauling effects
- Exhaust Deterioration: Rust, leaks, damage
Warranty Status
A 2016 F-150 is likely beyond the 8-year emissions warranty.