When your 2024 Ford Maverick displays the P0304 code, the powertrain control module has detected recurring misfires specifically in cylinder 4. This innovative compact truck offers distinct powertrain options, and understanding which engine your Maverick uses is essential for accurate diagnosis and repair.
Understanding P0304 in the 2024 Ford Maverick
The 2024 Maverick continues with two powertrain choices: the standard 2.5L hybrid system or the optional 2.0L EcoBoost turbocharged engine. Both four-cylinder configurations can experience P0304, but the turbocharged EcoBoost creates different diagnostic considerations than the naturally aspirated hybrid engine. Cylinder 4 sits at the rear of both inline-four configurations.
Engine-Specific Misfire Causes
The 2.0L EcoBoost faces challenges common to turbocharged direct injection engines—elevated cylinder pressures demanding robust ignition components and carbon accumulation from direct fuel injection. The hybrid's 2.5L Atkinson-cycle engine operates at lower power density but still experiences standard ignition and fuel system wear. Usage patterns including towing capability unique to EcoBoost models may accelerate component stress.
Diagnostic Process
Identify whether your Maverick has the hybrid or EcoBoost powertrain, as diagnostic approaches differ. Retrieve all codes and freeze frame data showing conditions when misfires occurred. Access cylinder 4 components and systematically test ignition coil, spark plug, and fuel injector operation. Consider usage history including towing or hauling that may affect engine component wear rates.
Repair Implementation
Use manufacturer-specified spark plugs appropriate for your specific engine—EcoBoost requires iridium plugs rated for turbocharged applications. Replace ignition coils testing outside specifications. Address carbon buildup through appropriate cleaning methods. Verify proper fuel injector operation and clean or replace as needed.