You Will Need
* A vehicle owner's manual
* New spark plugs
* A socket wrench
* A spark plug socket
* A socket wrench swivel joint
* And a socket wrench extension
* A spark plug wire puller (optional)
* A cleaning rag (optional)
* And rubbing alcohol (optional)]
Let car cool down : Park your car and wait for it to cool down. This may take a few hours, since the spark plugs are among the hottest parts of your engine.
Locate spark plugs : Pop open the hood and locate your spark plugs by referring to your owner’s manual.
Remove one spark plug : Remove one spark plug wire from the end of the row by pulling its boot, or the little cap where it connects to the engine—not by yanking on the wire itself.You can also use a spark plug wire puller to easily detach the wire.
Attach spark plug to socket wrench : Attach the spark plug socket to the socket wrench. You may need to use a swivel joint and/or a socket wrench extension to reach the spark plug.
Remove spark plug : Remove the spark plug by turning the socket wrench counterclockwise.
Make sure hole's clean : Make sure that the spark plug hole is clean. If necessary, use a rag and rubbing alcohol or compressed air to clean the spark plug hole.
Install new spark plug : Carefully install a new spark plug into the empty hole and tighten it by hand.
Secure new spark plug : Use the socket wrench to secure the new spark plug in place.
Reconnect spark plug wire : Reconnect the spark plug wire onto the new spark plug.Changing your spark plugs one at a time prevents incorrect installation that can affect the car’s timing and engine performance.
Move on to next spark plug : When you have successfully changed a spark plug, move on to the next one until you have finished installing all new plugs.
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