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Old 02-28-2021, 08:10 AM   #1
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RetiredBob's Avatar
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Location: Portage, MI
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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.
2011 Newmar Canyon Star 3411; Workhorse W22; 8.1L; Allison 6-speed
2013 Honda CRV
Portage, MI
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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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