Need some help on adding a temp guage to my 2155

BryanM · May 23, 2008

My 2155 electronic temp guage is not accurate. (always says its overheating and its not) I tried a new sending unit and no luck.

I have aprox 3.5 volts at my wire when I check voltage at sending unit. when I disconnect wire from sensor (open circuit) guage reads all the way cold, when I ground circuit it reads all the way hot. which leads me to believe sending unit is bad. So I replaced. And no luck so I think in my guage their is a short at a certain temp the guage shorts to ground, causing needle to go hot.

So Instead of replacing a very expensive guage I thought I would add an aftermarket one. Do they make a add-on electronic guage? Or should I just get a capsile type? How accurate are they? where do I get either?

EMPE · Aug 6, 2009

ByronM;

I am having the same problem with my 2155. I have had the radiator cleaned and rodded, replaced the thermostat, replaced the water pump, replaced the water reservoir cap, and replaced the temperature sending unit. The gage still indicates overheating after a short time running. I am planning to purchase a mechanical gage that indicates the actual temperature.

jenkinsph · Aug 6, 2009

The bulb type (capsule) thermometers work very well and are accurate.

Whether you can get one that matches up to your sensor hole is the question, and another thing to bring up is whether you need the electronic type to maintain warning light status. I am not familiar enough with a 55 series to know where they stand on electronics. My older 820 tractor had the bulb type and it worked without problems for the 35 years I had it.

Steve

stevens311 · Sep 20, 2016

more than likely its the wiring harness under your left foot under foot plate. there is a wire in the harness that is loose. I replaced that connector after replacing everything and have never had anymore issues. My gauge use to flicker back and forth before I fixed it.

Tx Jim · Sep 23, 2016

Have gauge cluster ground connections been cleaned & tightened??

I think there's no wires under left foot plate on a JD 2155 that has anything to do with engine temp gauge. Photo showing engine coolant sensor wiring to bulkhead on firewall then wiring goes to gauge in dash.