How to Change the Spark Plugs on a 2000 Buick Regal – The spark plugs in your Buick Regal will eventually go out, and as they start to wear down, you’ll start to notice performance issues with your engine. Typically, replacing the plugs will increase gas mileage and improve emissions, making it a win-win situation. Although some of the plugs may be difficult to access, replacing them one at a time is easy to do if you take it one cylinder at a time.
Tools Used: Tools, 3/8-inch ratchet, extension and universal joint, Spark plug socket, Replacement spark plugs, Spark plug gapping tool
Change the Spark Plugs
Open the hood and locate the spark plug wires. There are three on each side of the V-6 engine, and you can find them by looking for the spark plug wires leading into the engine around the exhaust manifold. Remove one of the spark plug wires by holding it at the very base of the plug wire, and twisting it out while pulling.