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Refilling Trans Fluid After Trans Cooler Install

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Old 12-21-2013, 08:27 AM   #1
Upstate NY
04 Explorer XLT
Join Date: Aug 2012
Posts: 410

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Refilling Trans Fluid After Trans Cooler Install

I have been reading online that the 5r55 has a thermostat that does not allow fluid through the trans cooler until it reaches a certain temp 150 degrees or so.

Now, some places I have read say that it still allows SOME fluid through the cooler to avoid air pockets and all that but then only lets all of the fluid through if it reaches the high enough temperature. Is this correct? If this is correct than I am good. I can start it up and run it for a few minutes until the temp gets between 80-120 and then fill it as needed.


If not, how can I make sure that the fluid goes through the new trans cooler so that I can fill the trans level back up appropriately? Can I unplug or somehow temporally disable the thermostat just to make sure that the fluid will flow through the thermostat.

Also, what transmission do I actually have? Is it the 5R55 e,n,s ????? I still don't really know

Thanks everyone.
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