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Apats77

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I want to potentially build a list of things that can be done to keep the engine color while towing.

To start no I haven’t towed with it and I don’t have a cooling problem as is.

I have a new 192* stat, water pump, 16lb rad cap and the radiator has been flushed.

My thoughts were to upgrade radiator, 20 lb cap upgrade hose clamps, 180* stat, possibly remove clutch fan for electric and add a coolant additive.

Please without tearing me down help me out with thoughts.
 
Considering your original engine+transmission & 200k+ mileage,
be very conservative pulling a trailer; don't try more than 50~60% of vehicle tow rating.
The 5r55 series Transmissions are NOT known as strong towing machines.
Assuming your engine+tranny+drivetrain are well maintained & no current operating issues?
That said, items that will increase odds of not damaging the vehicle while towing:
~ Service Tranny; new Filter, new ATF, retorq the ValveBody bolts, adjust the bands.
~ Service Engine: new Filter, new Oil, new OilPressurizedTimingTensioners if not replaced in last 75kMiles.
~ Service TranferCase: new ATF, make sure ShiftMotor+ControlModule are operational.
~ Service Diffferentials: new GearOil.
~ Service Brakes\CVs\Bearings\Suspension as needed.
~ Consider RearAdjustableShocks\SpringBags &\or LoadLevelingHitch depending on TongueWeight
~ Don't use BumperMounted Ball; install 2" Class3+ Receiver.
~ Assuming single TranCooler behind FrontGrille, consider 2nd parallel TranCooler &\or TempControlFans.
~ Replace stock 1\2CorePlasticTankedRadiator with 3\4CoreAllAlumRadiator, new 16psiCap
~ Replace stock 192f ThermoStat & PlasticHousing with 183f ThermoStat & AluminumHousing.
~ Replace Fan+Clutch+Belt+Coolant+Pump+Hoses if not done in last 50k Miles.

More info at
https://2001fordexplorersporttrac.fandom.com/Engine_Oilhttps://2001fordexplorersporttrac.fandom.com/Engine_Oil_Pan+Screenhttps://2001fordexplorersporttrac.fandom.com/Engine_Oil_Pressurized_TimingTensionershttps://2001fordexplorersporttrac.fandom.com/Engine_Coolant_Radiator+Caphttps://2001fordexplorersporttrac.fandom.com/Engine_Coolant_Fan+Clutch+Pumphttps://2001fordexplorersporttrac.fandom.com/Engine_Coolant_ThermoStathttps://2001fordexplorersporttrac.fandom.com/Engine_Coolant_HeaterValvehttps://2001fordexplorersporttrac.fandom.com/Engine_AirIntake_Filterhttps://2001fordexplorersporttrac.fandom.com/Engine_Exhaust_OxygenSensorshttps://2001fordexplorersporttrac.fandom.com/Engine_Fuel_Systemhttps://2001fordexplorersporttrac.fandom.com/Engine_Ignition_Plugs+Wires+CoilPackhttps://2001fordexplorersporttrac.fandom.com/Electrical_OnBoardDiagnosisPorthttps://2001fordexplorersporttrac.fandom.com/DriveTrain_Transmissionhttps://2001fordexplorersporttrac.fandom.com/DriveTrain_TransferCasehttps://2001fordexplorersporttrac.fandom.com/DriveTrain_Differentialshttps://2001fordexplorersporttrac.fandom.com/Mechanical_Suspensionhttps://2001fordexplorersporttrac.fandom.com/Mechanical_Brakes
 
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Thanks for the response! I recently tore down the engine for head gaskets and did all the timing components as well.
I replaced the thermostats housing with aluminum, replaced water pump and PMs have all been completed. It does have a class 3 receiver installed. I believe as part of the “max payload pkg”

The transmission will be getting rebuilt at some point since it has the near inevitable flashing o/d TC lock up code.

Any recommendations on where to look for a radiator? Or trans cooler fan/cooler?
 
Experimented with ThermoStats, replacing stock 192f with various ratings down to 179f;
found that anthing rated <181f was unstable opening+closing erratic.
Ended up with a 183f rated Stant#14748;
be aware I had to grind this TStat LowerBypassDisc to a slightly smaller diameter,
so that it would not get stuck open in the AluminumHousing BypassThroat;
this also a allows wider opening thus more flow to the 4CoreAlumRadiator.

The 2nd TransCooler is a JunkYard duplicate
hosed up parallel with the stock 1st TransCooler
with two 8"Fans & two TempSensors\Controllers added.

More info at
https://2001fordexplorersporttrac.fandom.com/Engine_Coolant_Radiator+Caphttps://2001fordexplorersporttrac.fandom.com/Engine_Coolant_ThermoStat
 
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That TransCooler\FanCombo is exactly what I've got,
though I bought the 2nd TransCooler little radiator used $33 then PressureTested & repainted,
& two new fans with TempControl Probe+AdjustableSetting
& a HeavyDutyRelay wired to Running12vHot seperately,
& also need Stainless BarbTees & ATF\Oil Rated Hose to connect the 1st+2nd Coolers in parallel.
& ZipTied the TempFanControl probes, on the inlet side of each Cooler.

3/8" StainlessBarbTees
https://www.ebay.com/itm/FOOD-GRADE...761615?hash=item5b0af39d4f:g:eyoAAOSwmrlUslJW
TransCooler Used
https://www.google.ca/search?q=5L2z...XGGs0KHYh6CKkQ_AUoAnoECAkQBA&biw=1366&bih=612
Don't recall where I got TempProbeControls with simple adjustment Knob settings upto 200F & Relay,
just be sure the amp ratings will carry the rated fan current.
 
Make sure the Upper+Lower Channels on the replacement radiator
are same width front to back as your old one, & same core height,
so that FanShroud will fit snug.

If you do go with 1.5"StainlessFlex Upper+Lower RadiatorHoses,
you need about 48" total of Flex, easily cut into 2 pieces & bent as needed;
the connection hardware that comes with the Flex kits is junk,
I just used 4"lengths of standard 1.5"RubberHose & double worm clamps as connections.
I opted for the SSFlex, thinking it provides even more radiant cooling surface; it does get hot to touch.

2001.Ford.ExST_Engi.Cool_Radi.4Row_APFO.2173_4of4.GIF
 
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