Help! Looking into installing a transmission temp gauge. (1 Viewer)

[fj62max]

Looking into installing a Hewitt transmission temperature guage. I've seen a few options. Need advice. I've contacted wholesale automatic in Australia and they sell a sending unit kit. But not the sending unit alone. I attached below the guage I will be using.

 

[cjmoon]

I tapped into my cooler lines. On the output about 6” from the trans. A lot of debate. But basically has spikes when the tc is not locked. It generates the most heat in the system. Some say pan but that’s super slow to respond. I know when the tc is locked and I can see the trans temps and know that is. A pretty good steady state and know when unlocked it is higher than

 

[fj62max]

I will be installing it on my HDJ81. Also does the sender have to match the guage?

 

[GW Nugget]

The tranny likes to run around 150*F that gauge range is a bit over.
I have the AUTO METER set up.
@baldilocks has a good write up on his White Rino build thread.

 

[cowboyjack]

I run an ISSPRO gauge tapped into the cooler line in about the same place.

What I’ve found is that I really don’t need a tranny gauge. Temp rarely goes above 150, max I’ve ever seen is 180, both of which are well below normal range for concern in overheating ATF. YMMV.

 

[fj62max]

I run an ISSPRO gauge tapped into the cooler line in about the same place.

What I’ve found is that I really don’t need a tranny gauge. Temp rarely goes above 150, max I’ve ever seen is 180, both of which are well below normal range for concern in overheating ATF. YMMV.

Which side of the cooler did you install it?

 

[flintknapper]

The A343F tranny for most folks under most normal driving condtions is going to run between 140° F and 160°F. The gauge you have chosen sort of starts on the low side.

I chose a digital gauge when I did mine and put a temp probe in the pan itself.

Digital Trans Temp Gauge Install........

With no way to get Transmission Fluid Temps from my ScanGauge, I wanted to install a gauge of some type in order to monitor transmission temps. I chose an 'Auber' digital gauge because it is small, accurate and allows for minimum and maximum alarms. It can also be used with a visible and...

forum.ih8mud.com

But honestly...unless you tow in very hot climates or over mountain passes...you'll find it a very boring and unnecessary gauge.

For my type of driving and knowing what I know now....I wouldn't install one at all.

 

[baldilocks]

Looking into installing a Hewitt transmission temperature guage. I've seen a few options. Need advice. I've contacted wholesale automatic in Australia and they sell a sending unit kit. But not the sending unit alone. I attached below the guage I will be using. View attachment 2178116

This gauge will rarely ever move with the sender in the trans oil pan which’s gives a good average of trans core temp, but you ask a reputable trans builder. Installing the sender in the hot line out, which directs fluid out of the converter, will usually read hotter than anywhere else unless you’ve been cruising in a locked up state for some time. If you like to watch the gauge pointer go up and down and possibly get hot enough to raise your eyebrow at times, put the sender in the hot fluid line between the trans and radiator.

 

[cme4lyt]

I’m a little OCD so I have two tranny gauges ! Even tho‘ I’m running a LS2, I think my idea still applies...

I have a gauge for the pan and one for the hot line going to the cooler. As many have said, under most condition, they are super boring i.e nothing much happens.

The only excitement I see is when wheeling or climbing a long uphill, like I just did in Death Valley a couple of months ago. My worst case was that I saw 245 on the hot line with the pan 30 degrees cooler. The pan always lags the hot line by about 30 degrees in this type of wheeling. My logic is that I wanted to see the highest temp, coming from the tranny, knowing that after it went through the cooler it will be less.

Around town and cruising in general, they both hang at about 140/150 and pretty much never move, very uneventful !

Regards....

 

[rannon]

I’m a little OCD so I have two tranny gauges ! Even tho‘ I’m running a LS2, I think my idea still applies...

I have a gauge for the pan and one for the hot line going to the cooler. As many have said, under most condition, they are super boring i.e nothing much happens.

The only excitement I see is when wheeling or climbing a long uphill, like I just did in Death Valley a couple of months ago. My worst case was that I saw 245 on the hot line with the pan 30 degrees cooler. The pan always lags the hot line by about 30 degrees in this type of wheeling. My logic is that I wanted to see the highest temp, coming from the tranny, knowing that after it went through the cooler it will be less.

Around town and cruising in general, they both hang at about 140/150 and pretty much never move, very uneventful !

Regards....

What gauge are you using in your hot line? Any specific gauge / sender you'd recommend? Thanks!