The 2022 Lincoln Aviator delivers luxury three-row SUV excellence with the powerful 3.0L twin-turbocharged V6 engine. When your Aviator displays a P0304 code indicating a cylinder 4 misfire, understanding this sophisticated powertrain helps guide accurate diagnosis.
Understanding P0304 in the Aviator
The Aviator's 3.0L twin-turbo V6 is available in standard or Grand Touring hybrid configurations. Cylinder 4 is located on the rear of the left bank of the V6. The engine control module monitors combustion events through crankshaft position analysis.
Twin-Turbo Considerations
The twin-turbo setup creates high combustion pressures that accelerate spark plug wear. Direct injection technology can contribute to carbon buildup on intake valves. The hybrid Grand Touring model adds electric assist but shares the same combustion system.
Diagnostic Approach
Access the cylinder 4 ignition coil on the left bank. Inspect spark plug electrode condition. Check for boost leaks in the charge piping. Verify no vacuum leaks exist in the intake system.
Resolution Process
Replace spark plugs with Ford/Motorcraft specifications. Test ignition coil output. If carbon buildup is suspected, intake valve cleaning may be warranted.