The 2022 Cadillac Escalade delivers flagship luxury with the powerful 6.2L V8 engine featuring Dynamic Fuel Management. When your Escalade displays a P0304 code indicating a cylinder 4 misfire, understanding the DFM system helps guide accurate diagnosis.
Understanding P0304 in the Escalade
The Escalade's 6.2L V8 features Dynamic Fuel Management, which can deactivate any cylinder combination for fuel efficiency. Cylinder 4 is located on the right (passenger) bank of the V8. The engine control module monitors combustion events through crankshaft position analysis.
DFM System Considerations
Dynamic Fuel Management uses hydraulic lifters to control individual cylinder deactivation. Issues with these lifters can cause misfires, particularly during transitions between active cylinder counts. The system requires proper oil level and quality for correct operation.
Diagnostic Approach
Access the cylinder 4 ignition coil on the right bank. Inspect spark plug condition. Monitor when misfires occur—during steady cruising suggests DFM involvement. Verify oil level and condition meet specifications.
Resolution Process
Replace spark plugs with AC Delco specifications if worn. Test ignition coil output. If DFM lifter issues are suspected, inspection requires valve cover removal. Ensure oil changes use Dexos1-approved oil.