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    5.4 3V - Broken Rocker Arm

    If I were in your position, looking for a bare minimum approach, I'd use the valve spring compressor tool and replace the keepers with new ones, and a new roller follower. While you are in there, give each of the other roller followers a check for play and/or flat spots.
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    2006 ford expedition shutts off

    Do you have ForScan? I believe ForScan will display the live data values for the cam position sensors and the commanded values. This should help narrow down whether its the sensors, phasers, or other (wiring, etc).
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    5.4l low power with WOT

    I had a low power at WOT condition a few months ago and it finally threw a low fuel pressure code at me. I hookup up the scanner and watch the fuel pressure. It was good while idling and around town but at WOT the pressure would drop a bunch. I changed the fuel filter and it was like having a...
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    question about transmission fluid cooling

    A typical drain and refill changes about 1/3 of the fluid capacity on these transmissions. Since you are having shifting issues, I'd suggest another drain and fill, or do a shade-tree flush by disconnecting one of the hoses going to the radiator/cooler and connecting a temporary reservoir to the...
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    Who has the Most Miles 2007 EL Expedition

    My '07 has 320k miles. When doing the timing a few years ago, I discovered that the engine is a Ford reman and I don't recall the date on the tag. I've owned her since 2017 when it had 212k miles on it.
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    Rear Struts with Tow Package

    Not that I know of.
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    Is there any harm in having genereric green coolant in a 3rd Gen?

    Traditional green coolant does not have the right make-up to protect aluminum parts and does a poor job at protecting steel and brass at any case. This is the primary reason why older cars (classic/vintage) typically do a flush and fill every 12 months. Dexcool (GM orange stuff) was better at...
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    What is this cable I might of snapped?

    Yep, that the vacuum line for the 4WD. On my '07, it runs from the passenger side to the driver side (as in direction of flow of vacuum). It's a pretty simple fix with a section of vacuum tubing. Mine was damaged by the previous owner and I repaired it. I think I used some 5/32" vacuum line and...
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    Help - timing issues with new chains and phasers

    Are the new ones OEM Motorcraft?
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    Front end vibration when in 2WD goes away when 4WD is engaged - 2011 Max

    Perform a leakdown test on each IWE. If they both pass, then move up the line to the next component. Does the check valve allow vacuum in only one direction? Does the vauum pot (reservoir) hold vacuum with no leakage? Are all of the vacuum lines good? For me, the vacuum line that is attached to...
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    A/C Compressor will not engage unless jumped at the relay

    For the evap temperature sensor, it’s a simple resistor that changes value with temperature. IIRC, a simple paper clip jumper will cause the sensor to read “warm” and cause the circuit to engage. I think I clipped my multimeter to the sensor and placed it in my freezer. This gave me a rough...
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    2011 Ford Expedition XLT 5.4 3v - Idle issues about 60% of the time - No codes - Engine runs great otherwise

    I was thinking the same thing. Engine harmonics are a funny thing and what you can feel at low RPMs seems to melt away with higher RPMs (plus road motion).
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    A/C Compressor will not engage unless jumped at the relay

    The circuit for the AC clutch engagement is pretty straightforward and linear. Switch A leads to switch B, etc. You’ve already tested a bunch of the items but I’m unclear if you found one that has power coming in but not coming out? I replaced my dieing evap temp sensor on my ‘07. I started...
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    Any Crazy Things To Look Out For On The 5.4L 3v Timing Job?

    There may or may not be a flex-head gear wrench in my oil pan after I performed this a few years ago. I have a 4WD, so dropping the oil pan was going to be extra difficult, but I loosened all the bolts and was able to nudge it down a couple of inches, which made getting the oil pump pickup tube...
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    2013 expedition 5.4 acceleration issue

    I recently replaced the fuel filter on my '07 and it was like a whole new engine. As for the misfire, I have a few in-depth replies on how to diagnose it. Coils, plugs, compression test, wiring & connectors; these all will cause a misfire code.
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    hub actuators again

    In addition to the IWE solenoid, you could have a vacuum leak, or your vacuum pot could be defective, or your check valve may be defective. In my '07, the vacuum line that runs across the front crossmember was worn through. A quick splice and my system was working again. A simple hand vacuum...
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    Show your Lifted 3rd Gens

    What’s the lift kit height? My ‘07 has a 3/2 lift and I run 35/12.5R17 BFG KO2 tires. I had to trim the front bumper just a little as well as the area near the running boards.
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    front differential/4wd/4a having issues.

    @ediddily Your last statement is incorrect. In 2H, the IWEs and the transfer case are unlocked. The front driveshaft and the front axles do not spin in 2H. In 4A, the transfercase is locked but the IWEs are unlocked until the traction system senses slippage and then it engages the IWEs. In 4A...
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    HELP Multiple Codes 2006 5.4 3v

    The misfires are all on one side of the engine. That side also has the coolant hoses above it, which can leak and cause misfires. Do you see any signs of coolant or moisture in the spark plug wells or on the coil boots? Change the coils to the other side and see if the misfires follow. If that...
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    Are the A/C systems normally weak on these?

    My '07 (313k miles) seems a bit weak, but not too terrible. I have a temperature gauge in the center vent and I'm normally in the 40'F to 50'F (ambient temperature dependent). In the Spring or Fall, it will get down to the mid 30's at the vent. I have a set of AC gauges and I like to keep the...
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    Driveline goes "brrrt"

    My '01 had a similar noise at odd times and it went away after I replaced all 4 U-joints. It was a relatively easy job, once I obtained the 3 different u-joints, which required 3 trips to different parts stores. Or, as others have said, it could be the IWE system. This system is easy to...
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    Brake problems

    I'll 2nd the rubber hose replacement idea. I had a frozen caliper, which I replaced, but when it happened again, I replaced all of the hoses and everything has been great since. My ABS also died shortly after the caliper issue. A used ABS pump, and reprogramming the as-built data, fixed that...
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    Do I have an engine timing problem?

    Check the exhaust manifolds, specifically the passenger side. Overtime they will crack and sound like a tick-tick-tick under load. I replaced mine with a set of Gibson shorty headers and some remflex gaskets, which fixed the issue. My passenger side manifold had a large crack that was difficult...
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    Rear driver cv shaft and seal

    It's pretty common to have to beat the bejezus out of those seals to remove them. I typically use a flat screwdriver under the lip of the seal, pounding on it until the seal changes from an "O" to a "C". Then a pair of pliers will pull it out. Insertion of the new seal is a much more delicate...
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    ALLA LED headlights issue

    My ALLAs (headlights, DRLs, etc, on various cars) all last about 2 to 4 years. At their price point, I just assume that 2 years is all they are good for. I did get Morimotos on my Expy last year, and they are still going.

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