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    Has anyone replaced the lenses on their headlights?

    The lenses on my HID equipped 2004 Navigator are too deeply cracked to restore. New headlamp assemblies aren't sold anymore or old stock is listed for $800+ Trying to figure out if I can swap in the lenses from a new aftermarket halogen kit. I believe they're glued in but before I take the...
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    Switched power circuit / fuse # needed for dashcam.

    Gents, I'm looking for a 10A+ switched circuit in the fuse box of my '04 Navigator to tap into for hard wired dashcam operation only while driving. I tried a number of options from #4 (Navigation) all the way through #31 (Radio, Subwoofer) but power remains available in each circuit even 30...
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    Strut conversion - creaking noises, especially in the rear

    Hola, Deleted all 4 air struts on my '04 Navigator last year with a Strutmasters kit. The ride comfort is alright but I appreciate the peace of mind of having eliminated the various potential repeat failure points is worth it, IMO, especially at the overall cost. What is definitely a bit...
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    Any other ideas?

    I've had a slight (irregular) engine shake on my 2V 5.4 '04 Expedition and was never able to resolve it. This is somewhat following me on my '04 Navigator with the 32V DOHC 5.4 motor has a relatively smooth cold idle but once warmed up, I get a more rhythmic vibration at 700 (and 1300-1400...
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    '04 AC orifice tube location

    Gents, is the encircled location in the attached pic where the AC orifice tube sits? Thx
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    Brake booster question

    My '04 Navigator's idle has been dropping / stumbling at stop lights a couple of times. This doesn't happen frequently or consistently though. What does happen ever since my mechanic replaced the master cylinder and brake reservoir because of a leak is that after cold starting and backing the...
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    Flapping hood

    Howdy folks, At Freeway speeds, the hood of my 04 Navigator is flapping up and down noticeably on the driver side. The latch mechanism and hood catch work fine and don't look worn. I played with the adjustable (screw) hood rests and was able to reduce the movement some but the hood doesn't...
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    Sticky idle

    A few months ago, my mechanic replaced the IAC on my 04 Navigator (5.4 32V) with an aftermarket unit. It's the same type the Expys use. Idle control has been fine until I recently cleaned MAF and intake air temp sensor as my MPG is still really crappy on this SUV. I used MAF cleaner as usual...
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    Alternator output voltage

    Howdy folks. My '04 Navigator's 8 month old 650cca Superstart battery tests good and takes a bench charge well but drains too quickly to no-start with the "ignition on" / engine off. (Fan on, audio on, doors closed, lights off). Less than 10 minutes and I need a jump. My alternator puts out...
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    No more Eibach kits?

    Strutmasters used to offer a Premium conversion kit option with Eibach springs. American Air Suspension, as well but those options seem to be no longer available. I read that all or most sub-$500 kits are too soft or the quality just isn't there. Has anyone tested the Dorman kit (with red...
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    Purge valve question

    At idle, are the purge valves supposed to be completely closed or slightly open on our trucks? Mine is an '04 5.4 but the unit should be the same on the 4.6, the Navigator 32V engines. I thought these were supposed to be closed completely at idle but I hear a whistle at idle that stops when I...
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    Program idle RPM

    Hi, Does anyone know if it's possible to set a different idle speed in the PCM with Forscan? If yes, how? If not in Forscan, how about with the dealer software? I've given up on finding a cure for the slight erratic idle shake I've been chasing (new OEM plugs coils, PCV valve, new IAC, clean...
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    Aux fans?

    Do 03-06 have auxiliary fans for the AC system?
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    2nd gen Navigator vs Expedition

    Hi, Who has owned / driven both and can speak to the differences in cabin insulation, interior build quality, ride comfort? (rattlebox?) How does the higher comp Intech 32V run compared to the 2V 5.4? Thanks!
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    The saga continues... head gasket leak

    I recently got my 04 Eddie Bauer (2V 5.4) back from replacing the intake manifold. It had sprung a coolant leak in the typical spot on the passenger side on a road trip this summer. Since that trip, we've also been dealing with a oil stains and now its confirmed that we have the dreaded head...
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    Disable auto-lock on 2nd gen?

    Is it possible to disable the 5mph auto-lock setting in 2nd gen Expys? The procedure for 1st gens didn't work for me and I'm not seeing an option in Forscan.
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    Does anyone recognize this part?

    Got my 2004 Expy 5.4 back for the shop to have the intake manifold replaced. Today, I went over the engine to chase down and fix some remaining vacuum hose leaks and found this washer sitting on top of my driver side valve cover in a bolt indentation. Does anyone recognize it and knows where...
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    Rust on car jack - rear AC condensation?

    I keep finding moisture on the right side inside the car jack compartment of my 04 Eddie Bauer. It seems to be condensation from the adjacent rear AC unit. The drain of that seems to work fine, lots of water dripping out. Has anybody else run into this? For additional context: the rear hatch...
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    Control arm kits?

    Hi, has anyone here run Detroit Axle suspension components - mostly onroad - and can speak to how they lasted? I'm looking at this kit: https://www.amazon.com/dp/B07CTR1KXX/ref=cm_sw_r_other_apa_i_e428EbK4T7CH3 If not, what are the exact part number Moog control arms, tie rods ends etc part...
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    PATS - anti-theft issues

    There probably is a thread somewhere covering this question for 2nd gen Expys already. If so, please point me in the right direction as I haven't been able to find it yet. If not, here's my question: ever since installing a new battery and replacing the corroded terminal connector, I've had the...
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    Positive Battery terminal cover

    Does anyone have the part number or link for the red, t-shaped OEM plastic cover that goes around the positive battery terminal and connected wires?
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    CD Player noise

    Every time I turn on the ignition, the OEM CD player noisily seems to attempt to load a disc for about 40 seconds. Is this normal or a sign that the player is broken? I don't have a CD (anymore) to test if that would shorten this process. Thx
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    Bluetooth Audio?

    Outside of replacing the stock head unit, what are good, affordable options to enable audio streaming via Bluetooth in our trucks? I don't want to use an FM transmitter.
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    Replace LSD with standard diff?

    I just replaced the fluid and added friction modifier to the LSD in my 04 Expy with towing package. Still getting shudder after driving on the Freeway for a while. Fluid's the recommended newer fully synthetic type, friction modifier the Motorcraft one. I read that when these trucks were still...
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    Usual suspects confirmation - slight engine shake at idle

    '04 Expedition with 2V 5.4 and 129K here, SoCal vehicle. I inherited ptetty fresh Denso plugs that are tight but I'm not sure how old the boots and coils are. Everything looks good, engine fires right up and pulls as it should. I do get an irregular slight engine shake at idle. It feels more...

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