Trans te semder location

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Sep 19, 2013 | 09:26 AM

bcuz1998

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Trans te semder location

Good morning,
What is the prefered location to put the temp sending unit in on an E40D?
Thanks!

Sep 19, 2013 | 09:41 AM

fordman67

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From: evansville in

I usually tig a bung into the side of the pan.

Sep 19, 2013 | 09:59 AM

bcuz1998

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Quote:

Originally Posted by fordman67

I usually tig a bung into the side of the pan.

Is there a plug in the case I can utilize?

Sep 19, 2013 | 10:01 AM

fordman67

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From: evansville in

I have not done that.never felt it would be accurate enough.

Sep 19, 2013 | 10:27 AM

bcuz1998

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Quote:

Originally Posted by fordman67

I have not done that.never felt it would be accurate enough.

Well poop!

I seen a pipe plug on the drivers side about 6 inches forward of the shifter, but not sure if that's a pressure port or if I could use it. Just wanting something easy I could tap into.

Sep 19, 2013 | 10:41 AM

Arcturus

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From: silicon Valley

On the drivers side, right above the pan, you should see what looks like a bolt all by itself. Here is picture of it.
3-Gauge Install Pictures
3-Gauge Install Pictures

Sep 19, 2013 | 10:44 AM

DIYMechanic

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From: Orrville, Ohio

Quote:

Originally Posted by Arcturus

On the drivers side, right above the pan, you should see what looks like a bolt all by itself. Here is picture of it.
3-Gauge Install Pictures
3-Gauge Install Pictures

That's where I put mine as well. That is what was recommended to me and it seems to have worked well.

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Sep 19, 2013 | 01:04 PM

fordman67

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From: evansville in

Quote:

Originally Posted by DIYMechanic

That's where I put mine as well. That is what was recommended to me and it seems to have worked well.

Nate,have you ever compared that to the pan temp? I'm curious if it would b accurate.
i always thought that the plug would not have fluid flowing since its a dead end deal.therefore not as accurate. I'm asking and in the future since i have an extra sender will experiment and see how they compare.

Sep 19, 2013 | 01:08 PM

#10

DIYMechanic

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From: Orrville, Ohio

Quote:

Originally Posted by fordman67

No, I haven't compared the two. I thought someone told me though that there was, indeed fluid flowing past that location and that is why it was a good place to put the sender. Also, I would think that the fluid in the pan would be cooler (because it is in the pan) than the fluid flowing through the transmission, but I guess if that passage is a dead end, then that's not the best either. I know a lot of guys on here that have their senders in that port though, so I guess I don't know.

I guess you'll have to test the theory out for us.

Be sure and do a writeup with the results.

Sep 19, 2013 | 04:19 PM

#11

Mark Kovalsky

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From: SE Florida

Quote:

Originally Posted by bcuz1998

Well poop!

I seen a pipe plug on the drivers side about 6 inches forward of the shifter, but not sure if that's a pressure port or if I could use it. Just wanting something easy I could tap into.

That's the best place to put the sender. If you want an accurate reading of the overall trans temp, that's the place.

The pan is about the worst place to put it. People assume that the temperatures in the pan are uniform. They are not! I studied this when I was a Ford transmission cooling engineer. I had 15-20 thermocouples in the pan. Depending on where you measured the temperature there were BIG differences compared to the internal temp of the trans. The sender in the pressure test port (that's what you found) was much closer to the real trans temp.