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Hi Trans temp on Utragauge compared to Scangauge ?

Posted: Tue Oct 27, 2020 7:01 pm
by RangerTray
Help on Transmission temp on ultragauge, I have just changed from Scangauge to ultra gauge and have readinging of 96 Deg on UltraGauge, the scangauge used to read 80 Deg not sure why the differance. vehicle is a 2017 XLT nothing changed just the gauge. I checked the external oil cooler and it is around 75 Deg. ???

Re: Hi Trans temp on Utragauge compared to Scangauge ?

Posted: Tue Oct 27, 2020 9:23 pm
by RossPat
Hi.
I would say that 96deg is correct.
As the thermostat doesn't open until 92 deg it's impossible to run @ 80.
I have a dual core trans cooler and with that I noticed a more constant running temp than a lower one.
It was lower in a way because where my temps were up to 100 towing the temp hovered around 94 after the cooler was fitted.
I consider the temp lowered if it is below the thermostat temp.
I also use an Ultraguage

Re: Hi Trans temp on Utragauge compared to Scangauge ?

Posted: Tue Oct 27, 2020 10:58 pm
by saeb
Also every Scangauge that is either bought with trans temp or uses the PID from their site is incorrect. The math is wrong so it reads wrong.

Re: Hi Trans temp on Utragauge compared to Scangauge ?

Posted: Wed Oct 28, 2020 11:24 am
by RossPat
You could put the correct info into the Scanguage for comparison.
https://www.saeb.net/viewtopic.php?f=18&t=57

Re: Hi Trans temp on Utragauge compared to Scangauge ?

Posted: Thu Oct 29, 2020 2:00 pm
by RangerTray
Thanks for the replies, interesting what others vehicles are running, I have a cooler on mine as well (rear mounted under the tray) and with the trans temp at 96 the cooler was still only 70 Deg, the cooler also has a fan that cuts in at 80 Deg which doesn't seem to to be coming on at all, it used too, so something has changed. I have tested the fan and it works Ok, might have to check the temp switch on the cooler.