Transmission Gauge

[TyThompson]

Okay, so a couple of weeks ago, I installed an Isspro transmission gauge. It doesn't work. I have the sender in the pan. I have followed the troubleshooting tips that came with it, and everything checks out, but it still doesn't work.

Does anyone have any experience with this type of gauge? It has the little box that has the two wires from the sender going into it, as well as four wires going out of it to the gauge itself. I touched the two wires together that come from the box going to the sender, (per the troubleshooting instructions) and the gauge needle momentarily rises about 45* or so, then drops, and then when I pull the wires apart, it rises momentarily again. The sender has about 900 ohms resistance with cold oil and about 1230 ohms warm oil, does this sound right?

Any help would be appreciated.

I bought this from Geno's Garage several weeks ago, are they pretty good with warranty stuff?

Thanks for the help.

 

[OL RATLR]

Make sure the wires that go to the box under your dash are tight, at least on mine you had to stick the hot wire and ground wire in small holes in the back of box and tighten with a very small screw driver. Hope this helps. :

 

[JCutter]

I put mine in last winter and never got a reading until spring. I thought it was broke to but i just left it in. My 45 min. drive to work still wolnt get it past 100* Even when i drive 3 hours to kokomo it still doesnt read when its cold out. When it gets to about 40* outside mine will start to read on the guage.



Maybe its to cold where you live?

 

[bmoeller]

What is the temp range of the gauge? If it starts at 140*, don't expect it to read anything unless towing.



I have the sensor in the new hot line (hotest oil it will see from the t/c), and it reads 110-140 most of the time. Rarely goes above 140 in the summer, unless towing or stop and go traffic.

 

[RAlberg]

I installed a transmission guage recently. On a test drive (about 20 miles unladen), the temperature guage hovered around 100*(outside temp in 30's). I was thinking a mistake was made but maybe not???(The sensor is the type that clamps on the transmission line) What do you think?

 

[JCutter]

im thinking its the temp

 

[TyThompson]

Thanks for all the suggestions. The gauge does start at 140*. I was thinking maybe the trans really wasn't getting that hot, but I thought that surely it would. I have a temp gauge in another truck (chevy with isuzu 6 cyl and at-542 allison trans) and the temp generally runs about the same temp, or 20* warmer than te engine, but maybe this dodge trans runs cooler with the lock up tc.

I have towed a skidsteer once with the gauge, mostly freeway, and didn't see the needle move.

I'll check the wires one more time to make sure they're tight.

Thanks for all the suggestions.

 

[BILLVO]

I had the same type of trouble. I thought that the transmission would run warmer than it does. Had a sender that started at 100 and tried 3 different senders and no change 100 most on road 140 in town. thought this was too low. changed to a westach gauge and sender still no change this was all in the pan. just went to the inline older style transmission line and now reads maybe 5-10 degrees higher at most.



What is wierd about all this is when I shoot the transmission pan with an infrared temp gun it always reads 140-150 but maybe the oil circulates at a rate as to cool faster than the pan and case.

 

[TyThompson]

Well, today I had a chance to do some tests, right when I got home from town, I checked the pan temperature with an infrared gun, and it was only 100*. Then I used a small butane torch to heat the pan up right around the sender to about 155* (according to gun) then I hurried and looked at the gauge, and sure enough, it said 155*.

BILLVO- that is weird that your pan always reads hotter than the oil temp...



So, I guess I figured out that my "problem" wasn't really a problem.

Thanks for the help everyone.