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Old 02-28-2021, 08:10 AM   #1
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Installing temp gauge for 1000 6-speed

For the eleven years I've owned my rig, I've never been able to monitor the transmission temperature. Never had any problems, changed the fluid and filter regularly. I've decided I now want to be able to monitor the temp but, since my ScanGauge II won't do it, I need to install a gauge and sensor myself. I think I read that there is no test port on the transmission, so I need an alternative, but I'm reluctant to cut into a line or drill into the pan. Are there any other options? If not, can someone please point me in the right direction for a good gauge/sensor and a YouTube how-to video. TIA.
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Old 03-01-2021, 08:26 PM   #2
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I installed the sender for my trans temp gauge in a blank hole on the right side.

Drilled and tapped it 1/8 inch NPT. You just have to find a gauge/sender set that has a 1/8 NPT sender.

You can see the sender installed in my pictures. I didn't drill in far enough to get into the oil, but the case temp is plenty good enough for me. You will soon enough get to know the normal running temp, so don't worry if people tell you it's not reading the actual oil temp. I put a gob of grease in the hole before installing the sender.

You will have that hole because your trans is the same as ours.
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Old 06-30-2021, 03:09 AM   #3
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i certainly may be wrong but i thought the Allison tcm sent trans temp & lots mo info via obdII port, is this not the case ?


how would the tcm control the trans and even go into safety modes and such if not ?


please let us know if anyone knows if trans temp sent via obdII port.


TIA
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Old 06-30-2021, 04:34 AM   #4
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Quote:
Originally Posted by SmilingSam View Post
i certainly may be wrong but i thought the Allison tcm sent trans temp & lots mo info via obdII port, is this not the case ?


how would the tcm control the trans and even go into safety modes and such if not ?


please let us know if anyone knows if trans temp sent via obdII port.


TIA
ScanGauge II can't read Tranny temp for Allison 6-speed.
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Old 06-30-2021, 06:51 AM   #5
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Quote:
Originally Posted by SmilingSam View Post
i certainly may be wrong but i thought the Allison tcm sent trans temp & lots mo info via obdII port, is this not the case ?


how would the tcm control the trans and even go into safety modes and such if not ?


please let us know if anyone knows if trans temp sent via obdII port.


TIA
The transmission definitely reads temperature, but the ScanGauge can not read it.

I have had a message on my dash saying "Transmission Overheat" or something to that effect.

It could be the transmission only has a sensor that sends a signal at a certain temperature, not actual temperature. Something like the idiot light on car dashboard for oil pressure..
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Old 06-30-2021, 06:56 AM   #6
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My transmission oil temperature gauge in my dash. The right one.
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