P0304 Code: 2024 GMC Canyon – What It Means & Cost to Fix

2024 GMC Canyon P0304: Cylinder 4 Misfire Guide

The redesigned 2024 GMC Canyon features the advanced 2.7L turbocharged four-cylinder engine delivering impressive power and efficiency. When a P0304 code appears indicating a cylinder 4 misfire, understanding this modern powertrain helps target effective diagnosis.

Understanding P0304 in the 2024 Canyon

The 2.7L Turbo engine is offered in multiple power levels for the new Canyon. Cylinder 4 is located at the rear of the inline-4 engine, nearest the firewall. The engine control module monitors combustion events through crankshaft position analysis to detect misfires with precision.

New Platform Considerations

The 2024 Canyon represents a complete redesign with the 2.7L Turbo as the primary engine option. Misfires on new vehicles are uncommon and typically indicate manufacturing defects covered under warranty. Software updates may address calibration refinements for first-year production.

Diagnostic Approach

Access the cylinder 4 ignition coil at the engine's rear. Inspect spark plug condition. Check for boost leaks in the charge piping. On new vehicles, manufacturing variances occasionally cause issues. Verify all software updates have been applied.

Resolution Path

Warranty coverage applies to 2024 models. Have your GMC dealer diagnose using factory equipment and current technical information. Component failures causing P0304 should be covered under powertrain warranty.

Parts & Tools for This Case

Based on our investigation, these parts may be needed for this repair.

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