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  1. T

    Can't Get Rid of Engine Roughness - Ideas?

    Thanks Darrr I have not had a repeat code after replacing the cylinder's coil related to that code error and cylinder, but will keep your tip in mind if I have another repeat of the same code or if rough running engine symptoms return.
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    Can't Get Rid of Engine Roughness - Ideas?

    Coil failure can begin in an innocous way.... Meaning the coil may only cause occasional engine stumble until it really deteriorates. If the engine stumble/roughness is mild and infrequent, see if you can wait to the SES light comes on, or better yet, if you can get a $20 Ancel-like handheld...
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    Can't Get Rid of Engine Roughness - Ideas?

    Thanks for the tip.... Do you replace your own coils?
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    Can't Get Rid of Engine Roughness - Ideas?

    Ok thanks BlackCoffee. Great ideas to keep in mind.... So far the Triton 5.4L V8 has been running perfectly since Wednesday May 31st for five days in a row, after the coil was changed for cylinder #8. I was fully ready to blame something else other than a coil, given I had two coils on two...
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    mileage/range

    Owned my 03 Expedition 5.4L V8 - 20 years - sole owner.... If battery is disconnected fuel range will read artificially way too high until driven a while.... Even if plugs are new, coils are fine, pray over the vehicle, and drive 100% highway... you will never get over 450 miles even on a full...
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    Can't Get Rid of Engine Roughness - Ideas?

    .... Well... maybe it is, yet again the coils. Why does Motorcraft not design a good coil for the Triton! LOL. The shop's expensive $5K+ computer confirmed my $20 Ancel, misfire #8. Coil #8 replaced. And all appears to be well again. Triton running like a champ again and has done so for at least...
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    Can't Get Rid of Engine Roughness - Ideas?

    Greetings fellow Expedition owners/mechanics/stakeholders: I’ve got a tricky issue with my 2003 EB 5.4L V8. It is one of the trickiest I’ve dealt with in my 20 years of owning it (sole owner). Started in March. I’d be most grateful in someone can spend an extra few minutes to read the details...
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    Ok. No problem. So your 20A fuse blew after about a week? I have made no progress yet on my issue, in part because daylight is getting longer so cabin lights are less needed. But the problem will not be forgotten or left unresolved forever!
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    Ok I will eagerly await your return. LOL. Meanwhile, I am get my own 20A fuse ready. Continue with easy stuff first before replacing headlamp switch for me.
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    Interesting. A 20 amp fuse is fine (5 amps higher than spec), then the 15 amp goes back in and still works. LOL. Are your interior demand lights working as expected; individually turning on and off with the doors closed and vehicle running?
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    okay 100branson!! Sounds like a plan. Please keep me (this thread) informed of what works and what does not. I will do the same. Thanks.
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    Yes, connectors were inspeced. Took it back to the headliner shop and then pulled it down part way. There are only a couple of bundled connectors. Not sure if anyone tested circuit at each location though. Conventional bulbs. I am hoping 100branson will respond further. He says he is having...
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    The headlamp switch has not been tried yet. Did you change or otherwise mess with your headliner? I'd love to get this thing resolved. But since early December have not touched it nor anybody else. The mechanic I go to caught COVID, then others in his shop caught COVID; that, then the holidays...
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    Thanks whtbronco. Does not seem hard or overly time consuming to swap the headlight switch. Sounds like worth trying.
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    New update. A week ago took Expedition back to the shop that did the headliner. They were thorough, and spent about two hours. They dropped the front overhead center map console, both 2nd row overhead captain's chairs lights, the rear cargo light, as well as opened the C-pillar cover right rear...
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    Ok thank you whtbronco. I will start by swapping the accessory delay relay and the high beam relay and see what happens.
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    Ok thanks for the tips! I have another update. And another clue perhaps. The five individual interior light switches actually do work, briefly, when the doors are all closed... I'll explain in a moment... Last night, I removed the right side C-pillar cover. I could see the two electrical...
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    So, I called the interior shop. The gentleman that did the work is very nice and curious himself. He said there are two harness plugs each with about 12 wires to the harness. Each plug is simply disconnected to bring the old headliner down for work, then when the new headliner is ready the plugs...
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    Thank wht bronco......Any hunch I appreciate at this point.... Where is the door open/close switch?
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    One more detail that may or may not help... I can turn on all five interior lights, with the doors closed, when I roll the driver dimmer switch all the way up. Also, with the roll dimmer switch all the way up, I can also turn each of the five interior light switch stations on and off invdividually.
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    New Headliner - Individual Light Stations Not Working *ONLY* When Doors Closed

    I've got a very strange problem with my 2003 Ford Expedition, that I've been the sole owner of for 18 years. Can someone provide a clue please? I got the full interior headliner replaced a week ago. Since I've gotten it back, none of switches for the five individual light stations - two front...
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    Replace Intake Manifold - 2003 Ford Expedition EB 5.4L?

    Ok great Hamfisted. Thank you. I am going to keep monitoring to see if the SES light comes on again.
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    Replace Intake Manifold - 2003 Ford Expedition EB 5.4L?

    Thanks for any tips. Sole owner since vehicle came off assembly line of 03 EB 5.4L V8, with 196,535 miles. When it does it become definitive that I need to get the intake manifold replaced? The backstory. SES light came on and as always ran to O'Reilly to get a quick code whenever the SES...
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    Steering Wheel Wobbles During Braking - Why?

    I have a 2003 EB Ford Expedition with 68,000 miles. Does anybody have an idea why the steering wheel wobbles ONLY during moderate to heavy breaking from speeds at or above 50 MPH? The front disc brake pads were replaced at 45,000 miles. The rear disc brake pads were replaced at 65,000 miles...
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    Missing Screws & Parts Schematic

    This week, I changed my oil and filter for my 2003 Ford Expedition 5.4L EB. While under the vehicle, I noticed that the two screws that help hold the lower molding to the underside of the cooling fan are missing. Does anybody know where I can find a parts schematic online, so I can find...

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