Giesesfa

The harness is burnt and the wire rotted off. This is on the sending unit I believe with one wire. Can someone lead me to finding the wire harness itself or some way of a quick fix. I tried fixing the old one but fat chance.

cruiser54

Thanks for your post.

We’re here to help, but you must understand that all Jeeps are not the same.
In order for us to give you more accurate advice and help, we must know the following, as applicable, along with detailed information as to the symptoms/problems etc:

Year
Model
Engine
Transmission
Transfer case

ehall

Sounds like you are talking about the single-wire feed for the gauge sender, at the back of the head on 91-95? go to the junkyard and find one in good shape, pull a couple of feet from the wiring harness loom. It did change once, the earlier models have a little bootie with a compression fit that goes over a threaded post, later models have a little white connector with a single spade terminal. If you have the threaded post style, you can also just attach an eye terminal to the wire and screw it down.

Giesesfa

That's exactly what I'm talking about. I'm looking online but can't find anything. I have a 96 but not sure motor year. I don't know how to read the year on the valve cover. I know it has 8 after the YR. Not sure if that means anything or not. The harness is the clip style which is off.

Not many junk yards around here. Looking online but going in circles.

ehall

I thought 96 used the coolant sensor in the thermostat housing, since its OBDII

Does your gauge not work?

You can switch to threaded style, just buy a sender for 91, put an eye terminal on the wire and done

Giesesfa

There is two sensors. One at the tsat and one on the block. I believe the one on the block is the actual sending unit. The temp gauge stopped working a month ago or so

ehall

Terminology--a sender is used to drive a gauge or idiot light, a sensor is monitored by the computer. If you are looking for sensor you are going to keep getting matches for the coolant sensor in the thermostat housing. You need to look for gauge sender. [97+ the computer drives the gauges so they got rid of the separate sender and just use the single sensor to monitor coolant temperature, and then computer moves the needle]

Looking around, I don't see anybody that makes the sender with the blade terminal anymore. This is the threaded post style of the Standard sender which is what I have in my 91



You can use any kind of connector for that. Even take a barrel crimp, and push it over the post (just an interference fit)

Giesesfa

Still going round and round. Oh well. I'll figure something. Thanks for the help. Maybe someone on here has had the same issue and found the harness

ehall

Or you could put a terminal on it and use the sender that is still being produced

rand4x4

Same boat here, Mine the top snap broke and have tried everything but cant find away. If you get lucky let me know it driving me nuts.

cruiser54

It's a standard connector just like has been used forever. Get a piece of the same gauge wire and put a terminal on it. Easy.