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    Debating trading in or sprucing up my '14 Limited

    I'm keeping my 2010 Navigator until the wheels fall off. Have you seen what the new ones cost? Start around 80K. If you get some of the fancier options it will push over 100K easy. No thanks.
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    2008 Limited AC valve leak replacement part?

    The line will probably need to be replaced. Looks like the low pressure/suction side.
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    6r75 bulkhead connector?

    I replaced my bulkhead connector also, started leaking about 2 weeks after I bought mine. I replaced my pan gasket at the same time because some of the rubber had come apart, wasn't planning on that so I had to run to the Ford dealer in the middle of the job. I also had to run to Harbor...
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    Engine knocking, only at idle

    Camshaft VVT phasers need replacement. For explanation of the noise, see the below video where he takes a phaser apart, among with other explanations of the components in the 5.4 3v timing system. https://www.youtube.com/watch?v=wQ8M1aw-5qw
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    Turbocharger Priming

    On the 5.4 the engine won't start if you disconnect the crank sensor and it's right on the front of the engine. Maybe the 3.5 has something similar?
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    Reman/crate motor vs timing job?

    Did you take off the timing cover after seeing the Dorman phasers? I guess the phasers weren't the XD ones that are supposedly better?
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    5.0 coyote swap?

    Sorry to dig up an old thread, but are you happy with your reman engine and transmission?
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    Engine oil

    Other thought: I use 10w30 grpIII syn year round, Chevron/Havoline ProDS. I live in Central Texas, so I wouldn't recommend this regimen for everyone. But the engine seems to like it fine. I did try 10w40HM at one time but it felt sluggish on that. With the recommended 5w20 it ran rough at...
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    A warning…

    I bought the metal ones for my upcoming timing job. I need to get at it before summer hits, it's hot here in Texas.
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    Reman/crate motor vs timing job?

    If your Expy doesn't have any symptoms other than timing issues, doesn't burn oil, has had good maintenance, then the timing job is probably worth it. If you're looking at unknown service history, or it burns oil, maybe better go go reman. I'd probably pop off a valve cover before deciding if...
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    Engine oil

    Most of the oils sold as Synthetic nowadays on the shelf at Walmart or Autozone don't contain much of what we traditionally considered synthetic. E.g. Polyalphaolefin (PAO) and Ester based base oils. They're just better at refining the normal stuff using a hydrocracking process to get a base...
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    And something just let go in my engine.

    That sounded...terrible.
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    Multiple misfires even after replacing a few things

    I agree with the 2nd mechanic you talked to, you're most likely going to need a timing kit. Very common issue with higher mileage 5.4 3V. If new Ford solenoids didn't fix the P0025 you're probably going to need phasers, and considering your mileage you may as well do the whole kit while the...
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    fan shroud removal...

    Yeah I had the airbox off once on my 2010 Navi to change the serpentine belt and I was pleased at the amount of space with the air intake off. Was really glad for the electric fans.
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    Intermittent rough idle

    Maybe ok for Detroit where you live and in Canada where SDR93 lives, but down here in Texas I use 10w30 and the engine runs a lot more smoothly when hot and makes less phaser noise as evidenced in the drive through. It also reduces the start up chain slapping, I guess it doesn't bleed out of...
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    2015 headlight housing options

    I have a 2010 Navigator, it came standard with 43000K HID. I'd like something whiter and newer.
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    Intermittent rough idle

    I would plan on doing a full timing job over just changing the solenoids. But, it won't hurt to try just the solenoids first. I'm guessing the shop that quoted you $1800 was planning on more than the solenoids. The symptoms you describe are well known issues in the 5.4 3V.
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    Water pump?

    215K is pretty good. Mine is at 144K and I have the parts to do the full timing job, front and top, in the garage. I'm going with the spring actuated tensioners and high volume oil pump as well. Running thicker oil definitely quiets things down with the phasers, rough idle and noisy starts...
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    Water pump?

    Look at the statement I responded to. People who own 5.4 3Vs shouldn't throw shade on the Ecoboost. The weaknesses of the 5.4 3V engine are well known, do I really need to run down the list? Sure they can be made more reliable if you plan on a complete timing components change every 100-150K...
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    2007 expedition el xlt crank no start

    I think that guy really has a Chevy
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    2015 headlight housing options

    While we're on the subject, what's a good replacement bulb for the factory HID? Mine are not so bright after 12 years.
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    Water pump?

    the 5.4 3V is one of the least reliable engines of the last 20 years.
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    What tuner would you recommend for improved fuel economy - 2013 Expedition

    45 is a bit of an exaggeration, you can get over 20 doing 55-60 on relative flat ground. I have done it with my stock tune. But at what passes for normal highway speeds in my neck of the woods, i.e., 75-80, I get around 17-17.5 tops.
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    timing job, tq. specs? 5.4 3v

    I bought the spring loaded replacements rather than another set of oil actuated ones. I haven't done the job yet though. It does seem down on power, but gets about the same mileage as others have mentioned. 13-14 in town, 15-16 in mixed driving. I have gotten as high as 22 on the highway...
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    2019 Exp Max vs Suburban

    I don't know if the 15-20s are better but the interiors on the 07-14 GMs are awful. I test drove over 20 and all but 1 had cracked dash and many rattles. I bought a Navi and priced an engine replacement into my cost forecast...

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