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  1. 367KIX

    Front blend door

    It's probably your actuator, a frequent failure point that should be replaced when you're up in there on that awful job behind the dash. https://www.youtube.com/watch?v=y2Bh4pN27zI
  2. 367KIX

    K&N Air Filter

    I'm another vote for sticking with disposable paper filters. I put the K&N CAI set up on my 2003, probably 10 years ago. Other than some more intake noise on acceleration, no other appreciable difference, including mileage or power. I kept the stock set up and after reading this string, I'm...
  3. 367KIX

    Spark plugs and ignition coil problem - 2004 EB 5.4L

    My 03 has 230K miles and I've replaced plugs twice, never needing coils/wires. Given the ECU tells you the exact cylinder that is misfiring, its' easy to check that one. I've had misfire codes from water getting down into the plug, which was resolved with high pressure air and checking...
  4. 367KIX

    Intermittent misfire

    My 2003 always throws a code when I'm getting a misfire from a plug related issue. Given you had no codes, both before and after the plug/coil replacement, I doubt your problem is there. Even with "Chinese garbage knock-offs". I'm not familiar with the FPDM related fuel issues as my X with...
  5. 367KIX

    Just purchased an 2003 Expedition.

    I have a 2003, 5.4, 4WD, with over 230K miles, and have always used synthetic Castrol 5W-20, with no issues. I'll also add that you consider a coolant check/flush if you don't know how old it is. I'm guessing yours has had at least one spark plug replacement, and I've seen them last at least...
  6. 367KIX

    New guy post, odd question.

    Same experience on my part.... window switches have failed in my '03, and relatively cheap replacements from ebay did the trick. For the seat heaters, i have one broken and the other working. It's the switch again, but unfortunately, those are more expensive ($150?), so I've put it off and...
  7. 367KIX

    How Many Miles Per Tank Do You Get?

    '03 Exp, 5.4L, stock except for the K&N Intake (which didn't make a difference with the mileage); Not sure on the total tank mileage but had a comment about seeing a huge difference in highway mileage (per the mileage computer), depending on speed. For speeds around 70-72, mpg is consistently...
  8. 367KIX

    Amplifier for 1997 Expedition Premium Sound

    Thanks for the great recommendations. Powering up the amp seems so obvious now, but you know how that goes. I'll go for the bypass if that doesn't work. BTW, I did see that the original stereo head unit had one or two breaks on the bottom circuit board, on the back corner. I'm speculating...
  9. 367KIX

    Check Engine Soon light

    BTW, my neighbor, the Ford mechanic, calls the check engine light the "Check Money Light". It usually means there is a sensor failure, as previous posts mentioned, but its easy money for the mechanics if the owner has no clue on how to check it and fix it themselves. I personally had a nagging...
  10. 367KIX

    Switching to synthetic

    Every time I've seen this question asked to the experts (e.g. Road & Track magazine), the answer is the same: "no issues at all with switching back and forth between synthetic and old school oil." Synthetic is always recommended, and can be changed less frequently as well. My 97 X has never...
  11. 367KIX

    Interested in buying an 03-04 Expedition

    I bought a used 03 (40K miles) two years ago after a great experience with my 97 Expedition. I have to say the new one has had many more issues, including broken rear air flow/temp actuators, intermittent seat heater, jammed 6-CD player, sticking front caliper, and the auto adjusting rear view...
  12. 367KIX

    Amplifier for 1997 Expedition Premium Sound

    Thanks for the suggestions. I did see in another Ford forum that there is definitely an amp, but I'll have to see if it's in the same place as the newer model. I can't find a wiring diagram yet, which would help, if I decide to bypass them, around the amp. And rewiring to the (new?) speakers...
  13. 367KIX

    Amplifier for 1997 Expedition Premium Sound

    The radio has been dead on my X for some time, including no clock on the display when its turned off. I do hear some possible relay clicks under the hood with the ignition switch turned to accessory. Triple checked fuses and am sure power/fuses is not the issue, at least for the head unit. I...
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