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  1. ArkLightning

    Off and on engine miss

    Well, the engine appears to be fixed. I replaced the plugs today but the plugs looked good as apparently were the old coil over plug units. What I did find while installing the plugs was that a large rubber line was running lengthwise down the right valve cover and as I moved it aside I was...
  2. ArkLightning

    Off and on engine miss

    OK - thanks. Let me see how the plugs go first. At this point I have most of my faith shifted over to the plugs being at fault for the miss. But I understand what you are saying that the DPFE is a maintenance item.
  3. ArkLightning

    Off and on engine miss

    I found it with Google _ I'll check it out. I have the metal type. Hoses look fine. The truck only has 17k miles on it. My hands are about healed up from installing the COPs so I'll probably try to start on the plugs this weekend. :eek:
  4. ArkLightning

    Off and on engine miss

    No joy in Arkansas with a change of fuel filter. I didn't even need to drive it as it was randomly missing at idle after starting it. So, I have a set of NKG TR6/IX plugs which I will put in in the next few days and see what happens. It has the plain (thick electrode) TR6 plugs in it and maybe...
  5. ArkLightning

    Off and on engine miss

    I replaced the plugs about 2007 or 2008 when I put the 4lb pulley and tune on (would have to check my log to be exact). I've only put about 5,000 miles on it since then. About 4 years ago (around 2014) I developed a miss when I opened the throttle up and a replacement of the fuel filter fixed...
  6. ArkLightning

    Off and on engine miss

    Took a while to get motivated but bought new Autolite coils from Rock Auto and finished installing them today (what a thankless job). Unfortunately the random miss is still there so looks like that $320 didn't do me much good. Violated my principal of always do the cheap and easy stuff first...
  7. ArkLightning

    Off and on engine miss

    Frustrating - truck ran fine today without a miss. Almost afraid to ask how I can be sure the RockAuto plugs are not fake? Is this strictly an Amazon thing?
  8. ArkLightning

    Off and on engine miss

    Interesting. I had issues with a McLeod clutch I purchased off Amazon last year. McLeod at first refused to deal with it as they said they didn't authorize anyone to sell their products on Amazon. Finally they did verify it was their clutch but went out their door several years prior - to...
  9. ArkLightning

    Off and on engine miss

    What do you think of these? Hard to find good information on part # for the Lightning but it appears DG-508 is correct. Seem to be Motorcraft from all of the reviews.
  10. ArkLightning

    Off and on engine miss

    Found some on Amazon for a set of Motorcraft for $214. Verifying they are correct for a Lightning. I'm gathering the Lightning didn't use anything special over a standard 5.4 L.
  11. ArkLightning

    Off and on engine miss

    $400 for Motorcraft COPs - ackk. Haven't checkeed out Denso yet but I will. I can't believe I'm asking this as I hate MSD, but anyone have any good reports on MSD or Accell COPs. For $200 if I get 5-10 years out of them I'll buy another set and break even.
  12. ArkLightning

    Off and on engine miss

    Thanks - I did a Google search for Ford Lightning, engine miss, no code - and got probably hundreds of hits, most of them seeming to be related to coil packs going bad. Didn't realize the truck has such a primitive diagnostic system to where it can't even identify what cylinder a bad coil pack...
  13. ArkLightning

    Value 2003 Torch Red Lightning

    I toyed around with my 17.5 K miles 2003 Lightning in some of the used car value websites a few weeks ago and due to the relatively low miles I believe it was generally rolling out at around $23,000 for private party sell. Now what they actually sell for I have no idea. But in comparison, a...
  14. ArkLightning

    Clutch pedal dragging?

    The pressure plate is responsible for pushing back against the hydraulic TO bearing which pushes fluid back to the clutch pedal master cylinder and in turn pushes the pedal back up. Sounds like a long chain but in practice it usually happens lightning quick since hydraulic fluid is...
  15. ArkLightning

    Off and on engine miss

    Thanks for responding. Interesting a weak coil pack miss didn't set a code. I'm going to let this gas stabilizer work on it a few day and get a fuel filter and change that again. If that doesn't do something I will probably look for a set of coil packs. I'm sure there are a lot of better...
  16. ArkLightning

    Off and on engine miss

    Forgot my SCT tuner will read codes. Checked with it and it said no codes. Drove it again and still missing, stumbling. The Star Tron stuff is some sort of emzymes based product to breakdown water so it may take a day of so to work.
  17. ArkLightning

    Off and on engine miss

    I have a 2003 Lightning with 17,500 miles on it with mild modifications (4lb pulley, CAI, tune) and for the last couple of years I've had an off and on again miss at light to med throttle. Probably misses at heavy throttle too but once it cuts out at medium throttle there's not much incentive...
  18. ArkLightning

    Which catch can is everyone using on their 350?

    JLT on pass side only. Not a lot of point on adding one to the driver side unless you are tracking the car and working it through a lot of revs and engine braking. Driver side is pulling air from intake in normal operation.
  19. ArkLightning

    Recently got engine replacement on 17 GT350 w/High Oil Consumption

    Mine is an early 17 model (still has spin on oil filter). So far at 5300 miles it's not using any oil.
  20. ArkLightning

    How many 2017 were made?

    I've had mine about 9 months now and in that time I've only run across one other - at a cruise night. But I don't cruise around a lot and I know there are a few more around here somewhere. I have several cars including vintage ones and I don't give appreciation and investment any priority at...
  21. ArkLightning

    What oil does everyone use or recommend

    So far just running the specified Motorcraft blend - primarily just to avoid any warranty issues. But I don't run my car hard and that may be an over-riding consideration for something else if you do. I doubt the Motorcraft blend is anything really special.
  22. ArkLightning

    Rattle noise from engine (Special Service Message 46173)

    Many, many cars exhibit piston slap. In addition to forged piston clearances, the trend to short piston skirts and ring placement have also contributed. If it really bothers you and your climate is not real cold, you might consider stepping up to a slightly thicker oil - say a 15W-50 which...
  23. ArkLightning

    Exhaust leak?

    Some mufflers have a small hole near the bottom of the end flange to allow condensation to drip out after they cool. Haven't looked at mine specifically to check for this but I wouldn't be surprised there is a drain hole.
  24. ArkLightning

    Used 2016 GT500's for cheap?

    I see that. I looked for a link to a picture or something of the window sticker but must have missed it. They do have the track pack rear spoiler so maybe the earlier cars didn't use the row of toggle switches just above the console. I'm not sure.
  25. ArkLightning

    Used 2016 GT500's for cheap?

    I have a 2017 and I'm not as familiar with the 2016s. None of those have the rocker switches down above the console for traction control, muffler setting, etc. So I'm not sure those are really Track Pack cars. Maybe the 15/16s used a different arrangement. Some of the others on here can...

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