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03 mustang has a rough idle

Discussion in '1994-2004 V6 Mustang Tech' started by Rene Rodriguez, Jun 23, 2017.

  1. Rene Rodriguez

    Rene Rodriguez New Member

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    I changed my old sparkplugs to new sparkplugs connected everything perfect and when I start it it has an ugly rough idle and misfires
     
  2. pixapusho

    pixapusho Member

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    What plugs did you use? Did you gap 'em?
     
  3. Phil II

    Phil II Cone Destroyer Staff Member

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    Check your spark plug wires. Make sure 4,6,6 go to their respective towers on the coil pack.