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General Discussion
Trans temp sensor location
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<blockquote data-quote="Boz" data-source="post: 597624" data-attributes="member: 6513"><p>The pan is prefered but, if not the pan I would use the main line pressure port. I have used the main line pressure ports on many other transmission makes and had good success. I don't llike post cooler temp gauge mounted sending units. I want to know how hot the transmission actually is, not how cool the fluid is coming from the cooler.</p><p></p><p></p><p>The hotter your trans is the better the radiator style fluid to fluid heat exchanger works. Once your trans gets over say about 225 degrees it is hard for an air to fluid type exchanger to catch up. I prefer a trans cooling system that routes the hot trans fluid from the trans to the radiator then to a external cooler , before returning to the trans. I realize this isn't always possible. I am just speaking from my experience.</p><p></p><p>Mortalis, Newer diesel transmissions and some older units too as well as gassers, have a temp sensor built into the wiring harness or mounted on the valve body. The PCM/TCM reads it and uses that info in the shift strategy or to illuminate a dummy light. That info is viewable on a scaan tool, a programmer display, and on some rigs as a actually gauge.</p></blockquote><p></p>
[QUOTE="Boz, post: 597624, member: 6513"] The pan is prefered but, if not the pan I would use the main line pressure port. I have used the main line pressure ports on many other transmission makes and had good success. I don't llike post cooler temp gauge mounted sending units. I want to know how hot the transmission actually is, not how cool the fluid is coming from the cooler. The hotter your trans is the better the radiator style fluid to fluid heat exchanger works. Once your trans gets over say about 225 degrees it is hard for an air to fluid type exchanger to catch up. I prefer a trans cooling system that routes the hot trans fluid from the trans to the radiator then to a external cooler , before returning to the trans. I realize this isn't always possible. I am just speaking from my experience. Mortalis, Newer diesel transmissions and some older units too as well as gassers, have a temp sensor built into the wiring harness or mounted on the valve body. The PCM/TCM reads it and uses that info in the shift strategy or to illuminate a dummy light. That info is viewable on a scaan tool, a programmer display, and on some rigs as a actually gauge. [/QUOTE]
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Trans temp sensor location
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