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Old 11-14-2019, 07:58 PM   #10 (permalink)
Master EcoModder
Join Date: Jul 2017
Location: Memphis, Tn
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Originally Posted by me and my metro View Post
Cooler flow is a controlled and calculated bleed to the system. The new Fords I work on have a thermostat in the cooler line system that only allows flow when the oil is up to temp. This makes my flush machine not work properly because the thermostat stops the flow. So it is back to drain and refill on the new stuff.
Use whatever lines you feel good about.
Thanks. Does the trans rely on restriction in the cooler lines to build enough pressure to operate correctly, or is less restriction in the cooler lines good? For what it's worth the return line dumps the fluid right back into the case of the transmission, it doesn't go to anything. Thanks
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