Can you just change spark plugs?
Like rotating tires or changing oil, replacing spark plugs is a job that can be easily, and inexpensively, done in the confines of your own home. Although they don’t need maintenance as often as the other two tasks, spark plugs are equally as important and require consistent monitoring.
Will replacing spark plugs improve gas mileage?
Replace Spark Plugs The National Institute for Automotive Service Excellence indicates that bad spark plugs can decrease fuel economy by up to 30%, and can cost drivers up to about 94 cents per gallon at today’s prices.
What happens if you don’t replace spark plugs?
Spark plugs will depreciate over time, so various engine issues will arise if they are not replaced. When the spark plugs do not generate the adequate spark, the combustion of the air/fuel mixture becomes incomplete, leading to loss of engine power, and in the worst-case scenario, the engine will not run.
What should I do during a spark plug change?
Clean the engine area of any dirt and debris to prevent anything from falling into the engine cylinder during spark plug replacement. Additionally, you may want to disconnect the battery (negative post only).
What happens if your spark plugs are worn out?
Worn out spark plugs can cause many different problems such as decreased gas mileage, engine misfiring, computer fault codes (i.e., an illuminated check engine light), and poor vehicle performance.
How can I find the correct spark plug gap?
Either call your local auto parts store and ask or use an online lookup tool such as the BriskUSA Spark Plug Gap Lookup to find out what the correct size gap is for the spark plug on your specific car. Once you know how big the spark plug gap should be, use a gapper tool to set the gap of each of the new plugs.
How big of a socket do I need to remove a spark plug?
Use a socket wrench with the appropriate size socket to remove the spark plug. The appropriate size socket to use is normally 13/6 inch or 5/8 inch deep type socket. An extension is often needed for spark plugs; as their location can be hard to reach.