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    Anyone add an auxiliary fan to a e-clutch equipped Expedition?

    Depending on which Which year Expy are you asking about? For my '01, I bought a kit (Troyer, I believe). The 2 fans came with radiator (AC condenser) mounts. They have a plastic zip tie like strip, a spring to keep tension without too much pressure, and some clips and such. Like this: Amazon...
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    Anyone add an auxiliary fan to a e-clutch equipped Expedition?

    I have added aux fans to my ‘01 and my ‘07. I used to work in Mexico and SoCal, so idling in the border crossing line for 2 hours while the air temperature is above 110’F brought my AC to its knees. For my ‘01 I bought a controller that used a radiator mounted thermometer and also connected to...
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    Cylinder Head temperature sensor issue

    Where are you testing the voltages? With everything connected, I'd backprobe the wires at the PCM and check the voltage as close to the PCM as possible. On my '07, the previous owner has sandwiched the wiring for the CHT sensor between the intake manifold and the head. 150k miles later, the...
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    2000 Ford Expedition Transmission slipping

    Might be a bad front pump or clogged valve body. My guess: the line pressure isn't building up fast enough. This causes your slippage when at a standstill until the line pressure increases enough to clamp the clutches down. When you shift from D to R and back to D, your valve body is...
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    2007 Transmission clunk, squeak, grinding, 2H and 4A fails, 4L and 4H Drives

    My first thought would be to see if the driveshaft going to the rear differential spins when you are in 4L or 4H and moving forward. If the rear driveshaft spins then your transmission and transfer case are likely okay (but not for certain just yet). If the driveshaft does not spin, then the...
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    Expy fuel mileage

    My '07 averages between 11.5 and 13.0mpg using an app to track actual mileage and fuel purchases. Note that this value is low by roughly 8% since I lifted her and put her on 35" tires. Prior to the lift, I'd be around the 14-15mpg range (highway).
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    Ford Expedition 2004 5.4 2V AC Compressor Does Not Engage / I tried everything I know

    I commuted into Mexico 4 to 5 days a week. Sitting and idling in the border line for hours at a time in the summer heat were miserable as my AC couldn't keep up. So I added 2 electric fans to the front of my condenser. They were powered through a relay, which got the on/off signal from the...
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    Odd shake that went away

    @whtbronco is on the right track. You state that the shaking happened after a highway run and acceleration, then stopping at a red light. Your engine likely high a slight increase in coolant temperature and pressure, which caused a slight leak. The coolant tee over the passenger side of the...
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    Timing belt or rebuilt engine or new vehicle

    Is the Jasper a new block? Are they using OEM parts? Likely a "no" to both questions. The Jasper will have a fresh set of bearings and rings, but the 5.4L engines don't often have issues with those to begin with. Personally, I'd stick with my engine and fix the ticking, which is likely a...
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    Txv valve location

    How high is "high". With the compressor off, the static pressure should be around 70 to 90 psi on both high-side and low-side ports. It's unusual to have both TXVs go bad at the same time. Sounds like a compressor failure to me. Replacing the TXV will require a complete depressurization of...
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    2007 EL suddenly running bad

    P0305, P0307, and P0308 are all driver's side misfires. This sounds like a failing timing setup or valvetrain. When was the last timing job done? Also, be sure to use Motorcraft plugs SP546X. Other brand or aftermarket plugs are common sources of poor performance. Likewise with...
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    2004 5.4 misfire after intake swap.

    The connections for my COPs and injectors were all dry rotted on my '07. The rubber rings inside the connectors were cracking, causing a bad connection with the COP or injector. I bought new pigtails for each and soldered the new connectors to the old harness. My misfires went away. If you...
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    Power Issue

    I had a U0101 code last week. Trans was in limp mode (locked in 3rd gear). Acceleration was dog slow. The wiring from my trans to the PCM run near the exhaust manifold and had melted. I pulled the whole harness (not a terrible job, about an hour) and repaired the harness with high temp wire and...
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    Loud noise while accelerating

    Highly likely this is the IWEs making noise when they try to engage under partial vacuum. They are supposed to engage when vacuum is removed and disengage with vacuum applied (2WD mode). During acceleration, engine vacuum drops. This causes the IWEs to partially engage. The teeth don’t quite...
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    Starts then stalls 5.4

    Sounds like a vacuum leak. Any check engine lights? If you scan it, do any codes show up?
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    Spark Plugs

    I've always run SP546(x) in my '07. Are you sure that the SP509 is the correct plug?
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    Codes codes and more codes

    Which misfire codes are you getting? P030x will identify which cylinder is misfiring. What are your short term and long term fuel trims for each bank? Do you have a scanner that will show you the live data for O2 sensors (B1S1 and B2S1)? We need to see the voltage data. Each one should cycle...
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    P1500, U0101, lost TCM connection, wrench icon

    Last weekend the CEL light came on, along with the wrench icon and the traction icon. Limp mode activated. FORScan came up with P1500, U0101, etc, all dealing with a lost TCM connection. I checked fuses 37 and 73 in the engine compartment fuse box by pulling the fuses out and verifying...
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    Evaporator Coil Cleaning

    I pulled my glovebox down/out and drilled a small (1/4") hole in the upper corner of the airbox. I used a step drill bit and made sure that I didn't go more than 1/2" into the box. I then sprayed cleaner into the hole. Once I had completed the cleaning with a rinse, etc, I used some tape...
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    Highest Miles

    My '07 is sitting at 323k miles. I bought it in 2017 with 208k miles on it. She runs well, knock on wood. A few PM and repair items include: Timing job (I found out the engine is a Ford reman while doing this). Exhaust manifolds replaced with shorty headers (passenger side as cracked)...
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    ready lift 3/2

    Well, it IS a 3” front and 2” rear lift kit, so the 1” difference in the front is right there in the description.
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    07 Eddie Bauer idling issue

    I’d do the timing job and inspect the roller followers while doing that. I’d check the plugs and replace with genuine Motorcraft plugs if needed. You may also want to look at the (especially passenger side) exhaust manifold and gasket while you are there. The cast manifolds are prone to cracking...
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    2006 ford expedition shutts off

    I don’t recall the specific variable names. I’d search for something like advance command and advance actually
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    Cylinder 8 misfire under high acceleration

    About 4 years ago I had misfire issues that I eventually resolved by replacing all of the connectors for the coils (and eventually all of the injectors, too). Each of those connectors has a rubber ring that's designed to keep the connector clean and dry. Overtime, the rubber fails and, in my...
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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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