P0306 means cylinder 6 misfire detected. Cylinder 6 isn't firing properly (V6/V8 engines). Check the plug, coil, and injector for that cylinder first.
Drive gently and get it diagnosed within days.
Cylinder 6 isn't firing properly (V6/V8 engines). Check the plug, coil, and injector for that cylinder first.
Most common.
Age/heat failure.
Fuel starvation at cylinder 6.
Mechanical wear.
Coil/injector harness.
Typically $100–$500
Single plug/coil typically $100–$300; injector work typically $150–$400. Estimates vary by vehicle. Costs are estimates and vary by vehicle, location, and shop.
Fine for short drives; schedule the fix within days.
Typically $100–$500. Single plug/coil typically $100–$300; injector work typically $150–$400. Estimates vary by vehicle.
Drive gently and get it diagnosed within days.
The most common cause is worn spark plug in cylinder 6. Most common.