How to Perform a Basic Engine Tune Up-Spark Plug and Wire Change

Below guide will teach you How to Perform a Basic Engine Tune Up-Spark Plug and Wire Change. Please follow the instructions carefully.

Things You’ll Need:

  • Screwdriver
  • Socket and Ratchet Set
  • Spark Plug Socket Set
  • Spark Plug Wire Puller
  • 3/8 in. Drive 6 in. Socket Extension
  • Spark Plug

Estimated Costs:

  • DIY Costs: Est. $31.32 parts only
  • Shop Costs: Est. $139.73 parts and labor


  • Locate the vehicle’s spark plugs. In some models, you can find it easily connected to the spark plug wires while in others these are covered with a plastic cover.
  • It is better to mark each of the plug wire for reference purposes so that you can reconnect them accurately later.
  • Take the old spark plugs out and install the new spark plugs in place.
  • If wires are worn, it is better to replace them with new ones. For better results, always disconnect and connect the wires one by one.

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