The P0304 code in your 2024 Chevrolet Traverse indicates the engine management system has detected persistent misfires in cylinder 4. The completely redesigned 2024 Traverse introduces a new turbocharged powertrain that requires updated diagnostic understanding compared to previous naturally aspirated models.
Understanding P0304 in the 2024 Traverse
The redesigned 2024 Traverse features a new 2.5L turbocharged four-cylinder engine producing 315 horsepower—replacing the previous 3.6L V6. This inline-four configuration places cylinder 4 at the rearmost position near the firewall. The combination of turbocharging and direct injection creates specific diagnostic considerations different from the naturally aspirated V6 used in prior years.
New Turbo Engine Misfire Causes
The turbocharged 2.5L faces elevated ignition system demands from boosted cylinder pressures. Spark plugs must reliably ignite compressed charges requiring higher voltage. Direct injection contributes to carbon accumulation on intake valves. The high-pressure fuel system must maintain precise injection timing. As a first-year production engine, unfamiliar failure patterns may emerge as these vehicles accumulate mileage.
Diagnostic Approach
Retrieve all codes including boost-related faults that may accompany P0304. Access cylinder 4 components in the new engine bay layout. Test ignition coil output and spark plug condition. Verify fuel system pressure and injector operation. Consider checking for technical service bulletins addressing early production concerns on this new powertrain.
Repair Solutions
Use manufacturer-specified spark plugs designed for the new 2.5L turbo application. Replace degraded ignition coils with quality replacements. Address fuel system issues as identified. New vehicle warranty coverage should apply to defects—consult your dealer for any first-year production concerns.