How Accurate is the ECM Tranny Temp? - Ford Powerstroke Diesel Forum

 
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post #1 of 4 Old 03-06-2012, 05:22 PM Thread Starter
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How Accurate is the ECM Tranny Temp?

As the title says I am wondering how accurate the PCM transmission temperature reading is. Not the idiot gauge but what the sensors are telling the PCM?


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post #2 of 4 Old 03-07-2012, 03:45 PM Thread Starter
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No ideas??


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Mods: BD-X monitor, 6637, BTS, GT38R, Snow MPGMax, International up-pipes, Hi-Flow Outlet, 5" Diamondeye, HPx, FRx, Gearhead tunes, Tru-Cool tranny cooler, Remote Start

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post #3 of 4 Old 03-09-2012, 09:05 AM
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Ill bump this, im curious as well.


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post #4 of 4 Old 03-09-2012, 09:11 AM
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I wondered the same thing. So I checked the pid with Fords IDS and compared it to my external trans temp guage which is mounted in the test port. The difference is minimal about 11 degrees.

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