Find Buick Special Ignition Switch. Shop Buick Special Ignition. Locate Buick Special Ignition Replacement & Buick Special Ignition System. Maintaining your Buick Special's ignition system is crucial for peak performance. Regularly check and replace spark plugs and wires, and listen for signs of wear such as engine misfires or difficulty starting, which may indicate the need for a new ignition coil or module. To extend the lifespan, ensure you use high-quality replacement parts that match your vehicle's specifications. When selecting an ignition system, consider options like traditional coil packs or the more modern coil-on-plug designs, each offering distinct performance benefits. For optimal functionality, choose components with superior materials and follow the manufacturer's guidelines for installation, maximizing the reliability and efficiency of your Buick Special's engine.