How To Change Rear Spark Plugs

By: Esther Lowery

Break Studios Contributing Writer

Your rear spark plugs have gone bad and you need to know how to change rear spark plugs?  In order to keep your engine running smoothly, you will need to have good spark plugs. Spark plugs are very important to also help improve your fuel efficiency. You can save money changing your own spark plugs than taking your car to an auto shop to get it done.  It is quite simple and takes less than an hour of your time to change rear spark plugs.

 To change rear spark plugs, you will need:

  • spark plug wire puller
  • spark plugs
  • socket set
  • rags
  1. Allow your engine to cool. To prevent injury or getting burned you want to make sure that you car is shut off and that your engine has had enough time to completely cool off.
  2. Remove the rear spark plug cables. Use a spark plug puller to take of the spark plug wire off of one plug and then the another. If you choose to take the spark plug wire off by hand, make sure to grab the spark plug boot and not the actual wire itself. 
  3. Clean off the surrounding area. Us a rag to wipe away any access dirt or oil around the spark plug.
  4. Remove the spark plugs from the engine. Use a proper sized socket wrench to take out the plugs from the engine.
  5. Replace the new spark plugs. Install the new rear spark plugs with a socket wrench in place of the old ones. Carefully turn the plugs by hand until tight.
  6. Connect the spark plug wire onto the new plug. Make sure the wires match up correctly and secure the spark plug wire onto the new plug by snapping it into position.  Follow these steps for additional spark plugs.
  7. Test drive your car. Start your car and take it for a test ride to make sure that is functioning properly and the engine is running smoothly.
Posted on: Jul. 15, 2010