The 2023 Ford Bronco's optional 2.7L EcoBoost V6 delivers 330 horsepower for confident off-road and on-road performance. When P0306: Cylinder 6 Misfire Detected appears, your Bronco has identified that cylinder 6 isn't contributing properly to power output.
EcoBoost V6 Configuration
Ford's 2.7L twin-turbo V6 positions cylinder 6 on the rear bank. The turbocharged, direct injection engine provides excellent low-end torque for trail crawling while maintaining highway capability. Rear-bank cylinders experience elevated temperatures from turbo heat proximity.
P0306 Causes on the Bronco V6
Heat-stressed ignition coils degrade faster on rear-bank cylinders near turbo heat. Boosted combustion pressures require properly gapped, quality spark plugs. Direct injection creates potential for intake valve carbon deposits. Fuel injector faults affect the precise fuel delivery critical for turbo operation. Wastegate or boost control issues can cause cylinder-specific problems.
Diagnostic Protocol
Scan for all codes—include turbo and boost-related faults in your search. Access the rear cylinder bank and inspect cylinder 6's ignition coil for heat damage. Remove the spark plug and check condition appropriate for boosted engines. Test fuel injector operation. Verify boost pressure consistency. Perform compression testing to assess mechanical health.
Trail-Ready Maintenance
Bronco owners using their vehicles for serious off-roading should maintain aggressive service schedules. Air filter changes, cooling system checks, and timely ignition maintenance ensure reliability in demanding conditions.