The P0304 code in your 2024 Jeep Gladiator indicates the powertrain control module has detected persistent misfires in cylinder 4. The pickup truck's proven 3.6L V6 combined with its off-road capability creates unique diagnostic considerations for this combustion problem.
Understanding P0304 in the 2024 Gladiator
The 2024 Gladiator features the 3.6L Pentastar V6 producing 285 horsepower. This V6 positions cylinder 4 on the rear bank toward the passenger side. Chrysler V6 numbering places cylinders 2, 4, 6 on the rear bank with 1, 3, 5 on the front.
Dual Consideration: Performance and Environment
Standard ignition wear applies to all Gladiators. Trail-rated trucks face additional environmental challenges—moisture from water crossings, dust from trails, and vibration from rough terrain. Both factors should guide diagnostic approach even on newer vehicles.
Diagnostic Methodology
Retrieve all codes and freeze frame data. For new vehicles, verify proper component installation—manufacturing anomalies occasionally occur. Inspect for environmental damage if off-road use is common. Test ignition coil output and spark plug condition. Verify fuel injector operation.
Repair Solutions
Install Jeep-specified spark plugs for the 3.6L V6. New vehicle warranty should cover manufacturing defects. Protect connectors with dielectric grease. Replace any degraded ignition coils.