Posts Tagged: spark plug tools

How to Replace Spark Plugs Like a Professional Mechanic

The Correct Way to Replace Spark Plugs Without Damaging Your Engine Quick Summary Modern spark plugs last longer than older designs, but they still wear out and can cause misfires, poor fuel economy, and rough running when they age. The key to success is working on a cold engine, cleaning debris from the plug wells, checking the gap correctly, and using a torque wrench when you install spark plugs. Done correctly, replacing spark plugs restores engine performance and prevents costly ignition system problems down the road. Article How to Replace … Read More