The P0304 diagnostic trouble code on your 2022 Ford Explorer indicates the powertrain control module has detected consistent misfires in cylinder 4. The 6th generation Explorer offers turbocharged options.
2022 Explorer Engine Options
The 2022 Explorer offers the 2.3L EcoBoost four-cylinder (300 hp), 3.0L EcoBoost V6 (400 hp ST), or hybrid. Cylinder 4 location varies by engine configuration.
Typical Causes
- Ignition Coil Problems: Turbo boost stresses coils
- Spark Plug Condition: EcoBoost-specific requirements
- Boost System Integrity: Leaks cause lean misfires
- Fuel Injector Issues: Direct injection deposits
- Carbon Accumulation: GDI valve deposits
Diagnostic Process
Use Ford diagnostics for detailed access. Identify your engine type. Monitor boost and misfire data. Test ignition components systematically.
Repair Recommendations
Replace faulty ignition coils with Motorcraft parts. Install properly specified spark plugs. Repair boost leaks. Carbon cleaning may help.