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where's your tranny probe located???

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Old May 26, 2005 | 09:09 PM
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444dieselrod's Avatar
444dieselrod
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From: Braham MN
where's your tranny probe located???

so with Johnny8's thread getting pretty big with tranny probe questions I decided to start a new one on where is the most ideal place to mount the probe.

Mine is the the line going to the cooler, I have seen post of people putting it in the plug on the drivers side, some in the pan, and a few had it in the return line from the cooler.

who has there's where, and why??? cuz I only put mine where it is for easy of converience, what location would be the most accurate???
 
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Old May 26, 2005 | 09:16 PM
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Originally Posted by 444dieselrod
so with Johnny8's thread getting pretty big with tranny probe questions I decided to start a new one on where is the most ideal place to mount the probe.

Mine is the the line going to the cooler, I have seen post of people putting it in the plug on the drivers side, some in the pan, and a few had it in the return line from the cooler.

who has there's where, and why??? cuz I only put mine where it is for easy of converience, what location would be the most accurate???
Hmm. Well, I just got my gauges and am planning to put the probe in the plug in the side of the trans. As for which is most accurate, I would think one that is measuring the oil temp in the trans, or in the line coming out of the trans would be quite accurate, even if a bit different.

The one place I would NEVER put it is in the oil return line from the cooler. At that location, you don't know the trans temp, you only know the cooled oil temp. If you wait to respond to elevated trans temp until the cooled oil temp exceeds 200 degrees it may already be too late because the trans is a LOT hotter than that.

Despite this, people put the temp probe in the oil return line...
 
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Old May 26, 2005 | 09:19 PM
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...sort of like putting your pyrometer probe post turbo.
 
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Old May 26, 2005 | 11:47 PM
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Actually more like putting your pyro in the exhaust tip.
I put mine in the test port. Instructions told me to. I figured the people at autometer, isspro, vdo, etc know much more than I do, so I'll follow their advice.
 
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Old May 27, 2005 | 12:13 AM
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Talking

Originally Posted by mjwhip2
Actually more like putting your pyro in the exhaust tip.
Heh!! You are probably correct!!
 
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Old May 27, 2005 | 12:27 AM
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From: colorado
drivers side test port....
 
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Old May 27, 2005 | 12:28 AM
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So what kind of temps do you show if the probe's in the cooler supply line?
 
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Old May 27, 2005 | 05:28 AM
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Yep, drivers side test port. Why? Because the instructions told me to.
Joe
 
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Old May 27, 2005 | 08:32 AM
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Drivers side test port, why? Because thats were all the online documentation I found said to put it, Plus it was easy to put in there.
 
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Old May 27, 2005 | 10:28 AM
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From: George West, Texas....
Question !!!
A while back I remember reading a thread about transmission probes being too long and being broken off inside the tranny... It was a certain gauge mfg or something like that.. Does anyone remember this or what gauge it was ??
 
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Old May 27, 2005 | 04:54 PM
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Originally Posted by RobertJohn
Question !!!
A while back I remember reading a thread about transmission probes being too long and being broken off inside the tranny... It was a certain gauge mfg or something like that.. Does anyone remember this or what gauge it was ??
probably a mechanical trans temp prob. Those mechanical temp sendors are huge compared to a electrical.

ps. driver's side test port (isspro elec.)
 
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Old May 27, 2005 | 07:46 PM
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From: George West, Texas....
It had to do with the length of the probe and being broken off...
So, what kind of gauges are the best to avoid this problem ??
 
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Old May 27, 2005 | 08:03 PM
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mechanical senders are normally bigger and longer
 
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Old May 28, 2005 | 07:54 PM
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I never got any instructions with my Isspro's so I just T'd it into the tranny cooler line. I normaly see 140*-160*, 190*-205* If I sit in traffic with my foot on the brake.

what kind of temps are people seeing in the test port??? I think I will move it once the truck is up and running again.


Diesel Rod
 
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Old May 28, 2005 | 08:21 PM
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i see on average about 70-75 deg over ambient, non-towing & contsant driving. towing i see on average 80-90 degrees over ambient (7k-11k lbs trailer weight). Isspro sender in test port. 4r100 must have some kind of thermostat. I have been noticing that it heats up 130 pretty quick, then very slow after that.

early 99 with stock cooler & trans with 160k on the trans.
 
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