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    Recent drop in MPG (17 MPG to 13 MPG).

    I am not aware of any switch in gas between the summer and winter, but I will definitely do some searching and see what I find. It’s not something the gas stations advertise, but that doesn’t mean they don’t change the gas for the seasons. Thanks for the suggestion.
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    Recent drop in MPG (17 MPG to 13 MPG).

    the tyre pressure changes quite significantly with the temperature change, i regularly see a 5-8 psi change in pressure when the temp changes by 20-30F between our Texas summer and winter.
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    Recent drop in MPG (17 MPG to 13 MPG).

    Good question, and yes all tire pressures were checked (just routine for me) so I didn’t check them specifically for this test, but I check them every week (checked them on Monday).
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    Recent drop in MPG (17 MPG to 13 MPG).

    It was probably about 20 F warmer than now. It was 58F today and was in the high 70’s last time I tried this test, the engine was up to normal operating temperature every time I tried the test.
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    Recent drop in MPG (17 MPG to 13 MPG).

    When you say both sensors, do you mean both sensors on each engine bank? There is a sensors before the catalytic converter and a sensor after the cat (2 per side, 4 sensors total) on each bank of cylinders? So change all 4 sensors, or did you mean 2 (both) sensors, which 2 are you referring too...
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    Recent drop in MPG (17 MPG to 13 MPG).

    Hi everyone, I own an 08 Ford Expedition, have owned it from new, it has 240+K miles and nearly everything is still original on it. About a year ago (maybe a bit longer), I reset the fuel economy monitor (this car does not have an instant MPG, only an average MPG reading) and carefully drove the...
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    Adding some stuff, just questions for now

    Just be aware you will need to trim/cut the ends of the rear drive shafts as the threaded end of the drive shafts will interfere with the center hub cap. If you have an angle grinder it’s very quick and easy to do.
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    What is this pipe?

    okay, I found an identical pipe on the drivers side, also coming from the IWE system, so it looks like both pipes are vents, this matches with many descriptions that I have read about the 4WD system. So not going to worry about it, seems normal.
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    What is this pipe?

    I just replaced the main radiator on my 2008 Ford expedition and noticed this small plastic pipe (circled in blue) that is just hanging in free air. It is a small rigid pipe, it runs with another small rigid pipe and seems to go down to the front axle, I assume it's probably something to do with...
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    ABS Module Reprogram

    I always bought new ABS units, figured used units were still going to fail sooner than a new unit, but always had to have ford program the unit so the car would recognize it. Have no idea if the ABS unit is programmed to recognize the car (and can this be done more than once?), or as I suspect...
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    Common cooling system leaks

    I have left the engine running for about 20 minutes with the pressure cap off and all the heating controls set to maximum hot temp to try and get most of the trapped air out of the system, but will also check it regularly for the next few trips to make sure the level doesn’t drop..
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    08 tool compartment turned into sub box

    What tool compartment? Where is it located? I have had my expedition since 08 and had no idea there was a tool compartment anywhere!!
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    Common cooling system leaks

    Well the cheap radiator that I ordered from Amazon never arrived, they claim it was damaged in shipment and returned to the sender. Amazon issued a full refund, so I ended up going to AutoZone and getting one of their radiators with a limited lifetime guarantee. Fitted the new radiator, the...
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    Where does this vacuum line from booster terminate?

    I have an 08 and just went to see where that line goes, but apparently the 08 doesn’t have a vaccum line running across the firewall, I don’t even have the attachment on the brake booster as in your second picture, so am unable to help. Hope someone can.
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    Common cooling system leaks

    Thanks again AWAR, I will go and buy some Mercon LV just to top it off. I also realised I can add the oil to the transmission by just putting a small funnel on the top line going to the radiator and pouring the oil into the funnel, it will just run down the line to the transmission, then I can...
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    Common cooling system leaks

    Can anyone confirm, I should be using Mercon V transmission fluid? It is a 6R80 transmission. The fluid in the transmission is dark red, same color as my Mercon V bottle, but just wanted to confirm.
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    Common cooling system leaks

    Many thanks Awar, everything will be cold so no fear of burning myself. Will take a look tomorrow and see if I can find the plug.
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    Common cooling system leaks

    Well I managed to loan a coolant pressure tester from AutoZone and when I bring the pressure above 12 psi, I get loads of water leaking from the radiator, below 12psi it doesn’t seem to leak. The radiator has horizontal metal cooling fins with plastic caps running vertically at the left and...
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    Common cooling system leaks

    Many thanks for that information, I was going to try and borrow a tester from autozone, but you have really helped by explaining the function of the second radiator. If it was a bad radiator cap I would expect to see coolant in the drain pipe above the pressure cap, but the pipe appears...
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    Common cooling system leaks

    No white smoke from the exhaust when starting or running!! I have always noticed that the top passenger side corner of the radiator (when looking in through the front ford chrome grill) always seems damp, so I thought it could be a leak in the radiator, but I started removing the front of the...
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    Common cooling system leaks

    Okay, my 08 expedition has covered 250K miles and is now loosing coolant, unfortunately there are no traces on the ground, leading me to suspect that it has a failed head gasket (coolant leaking into the cylinder and going out the exhaust), but I am not getting any error codes for misfire, etc...
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    What is "EL" and how do I know if mine is EL?

    The best thing with an EL, is that if you put all the seats down, someone of more than 6 feet tall can lie on an air bed in the back and your head and feet don’t touch the seats and rear door!! Wonderful way to camp in your car!!
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    What is "EL" and how do I know if mine is EL?

    Definitely not an EL.. if you are referring to the black expedition in your post.
  24. G

    Trailer Towing RTFM - Weight Distribution Hitch needed if towing over 6,000 pounds!

    I don’t hear anything when I use my WDH, but as you say you have minimum sag, it probably means you are putting very little pressure/load on the chains which is why you might be hearing the noise. My chains have to be really tensioned (I run a single axle trailer and it puts 900 lbs of weight on...
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    2007 Expedition - Parasitic Draw ~400-500mA - Need Help Tracking Down

    A 300 to 400mA draw is dissipating about 3 watts of power, something dissipating that much power is going to get noticeably warm to the touch. However the most likely culprit is going to be a small interior or exterior light that is staying on. Have you checked all the interior door and roof...

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