How do you Stop spark knock in a 1996 ford bronco?

To stop spark knock in a 1996 Ford Bronco, first ensure you're using the correct octane fuel as specified in the owner's manual. You can also check and replace the spark plugs if they are worn or fouled, and ensure the ignition timing is set correctly. Additionally, inspect the cooling system for proper operation, as overheating can contribute to knocking. If the problem persists, consider having a professional mechanic evaluate the engine for underlying issues.