When your 2022 Ford Escape displays the P0304 code, the powertrain control module has identified consistent misfires in cylinder 4. This indicates you have the 2.0L EcoBoost four-cylinder engine.
2.0L EcoBoost Engine Layout
The 2022 Escape's 2.0L EcoBoost four-cylinder produces 250 horsepower with direct fuel injection. Cylinder 4 is the rearmost on this inline-4. The turbocharged engine requires specific maintenance.
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. Monitor boost and misfire data. Test ignition components systematically. Check for carbon symptoms.
Repair Recommendations
Replace faulty ignition coils with Motorcraft parts. Install properly specified spark plugs. Repair boost leaks. Carbon cleaning may help.