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

2024 Buick Envision P0304: Cylinder 4 Misfire Guide

The 2024 Buick Envision continues to deliver premium compact SUV excellence with its refined 2.0L turbocharged engine. When a P0304 code appears indicating a cylinder 4 misfire, prompt attention maintains the smooth performance this luxury crossover provides.

Understanding P0304 in Your Envision

The Envision's 2.0L turbocharged four-cylinder combines performance with efficiency. Cylinder 4 sits at the rear of the inline-4 engine, closest to the firewall. The engine control module monitors each combustion event through crankshaft position analysis.

New Model Considerations

Misfires on new 2024 models are uncommon and typically indicate manufacturing defects covered under warranty. The proven Envision platform has established reliability, and component failures on new vehicles are exceptions.

Diagnostic Steps

Access the cylinder 4 ignition coil at the engine's rear. Inspect for any obvious defects. Check spark plug condition. Verify boost system integrity. Ensure all software updates have been applied.

Resolution Path

Warranty coverage applies to 2024 models. Have your Buick dealer diagnose using factory equipment. Component failures causing P0304 should be covered.

Parts & Tools for This Case

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

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