How To Change Spark Plugs In A Ford Mustang

Posted 1/4/2017 by Tyler Rodriquez

Changing your Mustang's spark plugs is an important part of routine maintenance. A bad or fouled spark plug can cause rough idle and a decrease in performance. Follow along as we walk you through this easy step by step procedure.

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Tools Required:

  • Socket Wrench
  • Spark Plug Socket
  • Spark Plug Gapper

Step 1:
Disconnect The Negative Battery Cable.

Step 2:
Remove the factory air box if equipped for easier access to the spark plugs

Step 3:
Disconnect the spark plug wires, making sure to remember the correct order they were plugged up (Alternatively, disconnect one at a time to reduce the chances of connecting the wrong wires to the wrong plugs).

Step 4:
Locate the correct sized spark plug socket & wrench combo and start removing your spark plugs.

Step 5:
Grab your spark plug gapping tool and start gapping your spark plugs to the correct specs.

Step 6:
Apply a small amount of anti-seize to the threads of the spark plugs.

Step 7:
Start threading the spark plugs in by hand and then torque to the correct torque specs.

Step 8:
Reconnect your spark plug wires.

Step 9:
Reconnect the negative battery cable & take it for a test drive to ensure there are no driveability issues and you are finished!