Question about 2004 Ford Expedition

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Diagram of spark plug

Sputtering. service engine soon light on dash. changes cylinder and plus 5 and 6. immediately after that was done, cylinder 2 shows the misfire. want to change plugs myself...have firing order. NEED TO KNOW HOW TO CHANGE PLUG AND COIL

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  • Ford Master
  • 17,970 Answers

Check this for 4.6 or 5.4 sizes engine...

2004 Ford Expedition 4.6 liter V-8 VIN "W"

diagram of spark plug - f4f4c2b.gif


2004 Ford Expedition 5.4 liter SOHC V-8 VIN "L"

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Hope this help (remember comment and rated this).

Posted on May 05, 2010

Testimonial: "thanks for the info. I worked like a charm"

  • ZJ Limited
    ZJ Limited May 05, 2010



    Ignition Coils - Removal & Installation

    4.6L, 5.4L
    SOHC & 6.8L Engines





    1. Disconnect the Coil On Plug (COP) electrical connectors.










      Fig. Disconnect the Coil On Plug (COP) electrical connectors





    2. Remove the bolts.


    3. Remove the coil on plugs.










      Fig. Exploded view of the coil on plugs-4.6L and 5.4L SOHC engines







    To install:




    NOTE

    Apply silicone brake caliper grease and dielectric compound to the
    inside of the coil boots.







    1. Install the coil on plugs.


    2. Secure with the retaining bolts and tighten to 44-62 inch lbs.
      (5-7 Nm).



    3. Attach the coil on plug electrical connectors.



    5.4L DOHC Engines



    1. Disconnect the negative battery cable.


    2. Remove the bolts and the ignition coil cover.


    3. Disconnect the electrical connector from the ignition coil.


    4. Remove the ignition coils.


    5. Installation is the reverse of the removal procedure. Tighten the
      ignition coil cover bolts to 9 ft. lbs. (12 Nm).

    Good luck.

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