Transmission Temp Scan Gauge alert (4 Viewers)

[kravman4]

Those of you running a scan gauge or similar, at what temp do you set your alert for your transmission temperature? Online I’m seeing things that say that the transmissions in general are made to operate 200°F, and obviously higher temps is what kills an automatic transmission,but where do you set your alert? Specifically for the 100 series.

 

[Import Driver]

Pulling enclosed trailers I don't think I've seen over 168° F. That's not a direct answer to your question but it might somehow help.

 

[Kofoed]

No alert. Did not know they had such a feature. I have seen 215 before under a super heavy load on a hot day.

 

[jLB]

My eye starts getting “twitchy” approaching/above 220*F (which is probably conservative), usually only seen at slow speeds, with lots of engine braking.

A750F Transmission & ScanGauge II - What are your temperature readings?

In the constant quest for data, I realize that there is not a catch all thread for 100's with A750F's as there is for 100"s with the A343F (A343F Trans & ScanGauge II what are your temp readings?). Thanks for getting the ball rolling with the A343F @flintknapper! I installed a ScanGauge II on...

forum.ih8mud.com

2006 LX (measured with torque app)
Constant ~75MPH on highway
Air temp ~95*
Coolant temp ~190*
ATF temp on level ground 150-155*
Climbing hills the temperature peaks ~180*, but quickly drops back down to ~155* after the incline.

 

[kravman4]

Pulling enclosed trailers I don't think I've seen over 168° F. That's not a direct answer to your question but it might somehow help.

Interesting… I was driving a few weeks ago coming back from a camping trip and I saw temps spike to over 200 briefly. It wasn’t even that tough of a grade (7%) and temp was 90F. Then I was driving today and going up and down all sort of hills at 85F and never saw the temp go above 150. Not towing either time. Definitely keeping an eye on it…

 

[Import Driver]

Interesting… I was driving a few weeks ago coming back from a camping trip and I saw temps spike to over 200 briefly. It wasn’t even that tough of a grade (7%) and temp was 90F. Then I was driving today and going up and down all sort of hills at 85F and never saw the temp go above 150. Not towing either time. Definitely keeping an eye on it…

I believe most of it has to do with whether or not the torque converter is locked. It locks in 4th and 5th but not 3rd. I tow in 4th and try not to let it drop to third much which sometimes means going a little slower in the show lane. But on steep hills that's not possible but the steep hills where I am aren't long. Thats my situation anyway.

At the end of the day I think these transmissions very stout and will take quite a be a beating. But it's nice to monitor temps.

 

[kravman4]

I believe most of it has to do with whether or not the torque converter is locked. It locks in 4th and 5th but not 3rd. I tow in 4th and try not to let it drop to third much which sometimes means going a little slower in the show lane. But on steep hills that's not possible but the steep hills where I am aren't long. Thats my situation anyway.

At the end of the day I think these transmissions very stout and will take quite a be a beating. But it's nice to monitor temps.

That actually makes perfect sense. I was in a spot where there was one way traffic control and the hill climb was at slower speed… 35-40. I thought it odd that the heat spiked with such a slow climb but if the TC didn’t lock in third that makes total sense. Thank you for that info!