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- #How to install transmission cooler line on ford expedition pro
- #How to install transmission cooler line on ford expedition series
I researched the possible effects on the transmission and discovered a few considerations for extreme cold weather environments. I'm in Phoenix, AZ, winter daily low temps average mid to low 40s F. I just bought this Expedition beginning of June so I haven't had it thru the winter. I did leave the radiator cooler connected so the fluid will warm a little with the engine. The thing I don't know is the pressure back into the trans, is it enough to do whatever it's supposed to do. Further down the return line to the transmission (after the cooler(s) outlet) the flow should be the same. yeah flow is reduced in the coolers, increasing dwell time within the coolers for heat exchange, which is a good thing. The pressure differential is what drives direction of flow. Head pressure decreases due to friction and junctions. The sum of flow in the pipes leading to the outlet(s) equals the flow of the inlet. Internally, flow is reduced as the fluid splits at each junction and flows down different pipes.
#How to install transmission cooler line on ford expedition series
Putting the coolers in series would eliminate two tee fittings, thereby eliminating two minor energy losses lowering head pressure, but flow at the outlets would still equal the inlets.Ī cooler, or coolers, whether in parallel or series, can be considered as a network of pipes, the outlet or sum of outlets having same flow as the inlet (Hardy Cross method). If I remember, the frontal surface area of a radiator contributes most to cooling, but thickness matters too. The 6.0 coolers are thicker (1.25") than the Haydens (3/4"). I did tee both coolers to the trans lines. I start the app on my phone and put it in the console where I can see it. Since I have been concentrating on getting LTFT as close to zero as possible (tracking down rotten vacuum hoses, might replace O2 sensors next, have injectors tested/ cleaned after that), and observing the transmission, I created this screen. Other PIDs in the Ford data set (that our PCMs will report) include fuel injector parameters, cylinder misfires, knock sensor retard and others. You can also create custom displays like showing delta between two PIDs, e.g. You can have multiple screens and types of display like dial meters or digital.
#How to install transmission cooler line on ford expedition pro
Torque Pro will display a bunch of PIDs for our vehicles.
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The trans fluid temp sensor on the 4R100 takes temp of oil in the pan. Not all OBD-II adapters work with the app, avoid the cheap chinese knockoffs. TXFishin, a member of this forum, has the adapter at this link that works with Torque app. You don't have to spend $80-100 on an adapter. You must be registered for see images attach Ambient temps have been above 110f for the last 30 days here and the trans rarely goes above 170f and maxed out at 192f on a long steep hill that formerly would push temps up to 220f. This dropped trans temps 30-40f which I consider satisfactory. Since I already had one Hayden 679 I decided to add another. A 25 row cooler would fit, they're cheap at used auto parts but it's hard finding one in good condition. On the freeway trans temp was stable around 190f, and every now and then went above 200f on steep hills off road in D.Ĭonsidered adding a 33 row cooler from 2000's F350 6.0 turbodiesel, but decided it wouldn't fit without a lot of modification. Modified my driving habits and that helped considerably, and decided to add a trans cooler.Īdded a Hayden 679 cooler after the aux cooler and that helped, dropping temps about 20 degrees average. Such high temps were alarming so I decided to try to get it under control.
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Hit 220f and higher driving slow speed off-road up steep hills in D. Trans temps were routinely above 200f driving around town with OEM trans cooler (towing pkg). Trying to beat the heat here in Phoenix, I started to track trans temps on my '01 4x4 Expedition with 5.4 and 4r100.