Spark plug gap

Discussion in '2011-2014 V6 Mustang Tech' started by Pastor P, Feb 16, 2018.

  1. Pastor P New Member

    Joined:
    Nov 29, 2017
    Messages:
    13
    Likes Received:
    1
    Trophy Points:
    3
    I just purchased a new oem set of spark plugs from my local Ford dealership. I have a 2012 mustang 3.7 V6. What is the correct spark plug gap. Thry cam pre set, but he said to re check as they could have gotten knocked around during shipping.
     
  2. 08'MustangDude Active Member

    Joined:
    Jan 31, 2018
    Messages:
    254
    Likes Received:
    39
    Trophy Points:
    28
    You always check the gap before installing.

    .45 From the factroy.
    .35 - .38 if under boost.

    The cylinder firing order for the 3.7L Mustang is 1-2-3 on the passenger side
    and 4-5-6 on the drivers side. The firing order is 1-4-2-5-3-6.

    Since you have to remove it, clean the intake manifold/plenum.
     
  3. Pastor P New Member

    Joined:
    Nov 29, 2017
    Messages:
    13
    Likes Received:
    1
    Trophy Points:
    3
    Got it, thank you. Oh, I didn’t know you had to take off the intake. Guess I’ll be watching a few videos.