Cherokee water temp sender

Danny did pass the time by typing:

Front of the engine.

It should be a purple wire on a sensor right at the back top driver's side corner of the engine head. That sensor runs the gauge on the 4.0.

Mike

Thanks Doug and Mike. Found it (right in front of my eyes!) - all looks fine, will WD40 it.

I am curious as to where it was on your 97. I thought they kept the gauge one the same at the back of the head and added one up front for the computer.

Mike

OK, I only found a sender at the front of the engine, above the water pump, with two wires (yeelow strip and brown stripe). Cleaning this sender connection fixed the gauge, but that could be co-incidence...

Thanks. I was under the impression the newer one still had the back sensor. It had a purple wire going to it. That was for a direct read gauge. Yours likely is computer generated for the gauge then.

Mike

Danny wrote:

Trouble is that the decsription of rear engine drivers side, assuming a LHD vehicle equates to N/S on mine, which is a pig to see into as it's the side the inlet manifold and injectors are on.

I noticed that when the gauge wasn't working properly it was doing something - it rose to the zero on the gauge, rather than getting no voltage at all.

No Danny you are right. I had the same problem on my 97XJ, and cleaning the contacts did the trick.

I had the same problem - it was a bad wire coming out of the temp sending unit. I just moved the wire 180degrees and it's been fine since.

---------------------------------------- Danny wrote:

I had the same problem - it was a bad wire coming out of the temp sending unit. I just moved the wire 180degrees and it's been fine since.

---------------------------------------- Danny wrote: