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C6 TEMPERATURE SENDING UNIT

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Old Oct 4, 2018 | 08:03 PM
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Question C6 TEMPERATURE SENDING UNIT

First: Is there port on C6's where you can install a temp. sending unit? Or do people just use a " T " junction between the tranny and cooler?

Second: which coolant line is the line from the tranny to the cooler?
 
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Old Oct 4, 2018 | 08:47 PM
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You can't use a T , the reading will be useless. It needs to be pan mounted to get a legitimate reading.
 
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Old Oct 5, 2018 | 08:45 AM
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Originally Posted by ford390gashog
You can't use a T , the reading will be useless. It needs to be pan mounted to get a legitimate reading.
Do they sell them?

Why not a T port on the line coming out of the tranny to the cooler? The fluid is hottest coming out of the tranny The reading is only measuring the temp. of the fluid at that point. Why would it be useless?
 
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Old Oct 5, 2018 | 10:21 AM
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A bung welded into the side of the trans pan is normally how it is done
 
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Old Oct 5, 2018 | 12:42 PM
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Buy an aftermarket pan. Most of them have a bung installed and you get extra ATF capacity to boot.
 
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Old Oct 5, 2018 | 09:15 PM
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Originally Posted by 72CC428
Do they sell them?

Why not a T port on the line coming out of the tranny to the cooler? The fluid is hottest coming out of the tranny The reading is only measuring the temp. of the fluid at that point. Why would it be useless?

Because your tee will not have the sender in the flow of fluid, if you do get it in the flow of fluid you will restrict flow to the cooler. Reading trans temp out doesn't mean much, you want to monitor the entire trans from the fluid sump.
 
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Old Oct 5, 2018 | 10:14 PM
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When fluid comes out the vent, it wont go anymore and the fluid on the dipstick is black it was too hot lol
 
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Old Oct 6, 2018 | 10:12 PM
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There is a port on the side of the trans. Use that to install the sender. This reading will be much more accurate than a reading in the pan. The pan is the coolest part of the transmission. You don't want to use that reading. The test port will show a better average transmission temperature.
 
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Old Oct 8, 2018 | 01:05 AM
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Originally Posted by Mark Kovalsky
There is a port on the side of the trans. Use that to install the sender. This reading will be much more accurate than a reading in the pan. The pan is the coolest part of the transmission. You don't want to use that reading. The test port will show a better average transmission temperature.
so where is that test port on a 72 C6?
 
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Old Oct 8, 2018 | 07:22 AM
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That's before my time. I don't know.
 
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Old Oct 8, 2018 | 07:44 PM
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Seems like I remember a plug screwed in to the driver's side of the tranny's case. That is prolly the test port. But I think it too small a diameter to mount a temp sensor.
 
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Old Oct 8, 2018 | 08:03 PM
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The ports are 1/8" NPT thread. That happens to be the most common temp sensor thread.
 
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Old Oct 8, 2018 | 08:34 PM
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https://www.ford-trucks.com/forums/1...st-port-3.html

Found this.
 
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Old Oct 12, 2018 | 02:25 AM
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Talking

Originally Posted by Uni Moe
Thanks Uni Moe!

Now I need to go and check mine.
 
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Old Oct 13, 2018 | 04:40 AM
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Originally Posted by Uni Moe
Thanks for sharing that info
 
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