Isspro trans gauge question

[kclough]

Hey guys. I recently installed isspro EV gauges and they work great except the trans gauge. It is not reading but the gauge does turn on and I check the wiring. The sensor is on a clamp on the trans cooler line. Could it be that the trans temp is too low for the gauge to read or bad sensor

[carolinaboy02powerstroke]

Does that gauge not have a sensor that screws into the test port on the side of the transmission?

[kclough]

No it came with a clamp to hold the end of the sensor to the cooler line. But the sensor itself is threaded. Where is this test port your talking about and also what are normal operating temps. I have a 02 auto with ts chip with ts tunes

[carolinaboy02powerstroke]

On the drivers side of the tranny(4r100 automatic), there is a test port, the size of the sensor. You'll want to get some sort of thread sealant or teflon, but the sensor screws into the hole.

No more than 210-220 degrees. A solid 180+/- depending on terrain, ambient temp, and load will be normal.

[kclough]

Alright thanks I thought something wasn't quite right. Is the test port on the side of the tranny and is it a hex head bolt or what. I don't really quite know what I'm looking for

[mudrunninpig]

It will be on the drivers side near the front right above the pan

[carolinaboy02powerstroke]

Gauge Installations at DieselManor- 1999-2003 7.3L Powerstroke
3-Gauge Install Pictures

[kclough]

Ok I finally got the gauge to read and after about 40 minutes of driving I get a reading of about 110 to about 130. These temps are from driving max speed of 60, the temp outside is max 35 degrees right now. Are these normal readings or do I have something wrong?

[carolinaboy02powerstroke]

You're in good shape.

[kclough]

Alright good deal. Thanks for everything