Ryno_yj

Actually after tinkering some more with it today I have found it to be the total opposite. It will hover at 210 all day long at idle, but as soon as I start driving it and put a load on the engine the temp starts to rise. Then it has to sit for quite awhile to cool off after shutting it down. I also ruled out the temp sending unit today because I ran it enough to actually get the coolant to boil over in to the over flow tank. This is when I noticed some light brown coloring in the lower part of the over flow. My instant thought is oil in the coolant, which means a blown head gasket. I checked the oil and it is nice and brown with no milky color or foam at all. A good friend of mine came and picked it up today. He has some sort of chemical tester that detects combustibles in the coolant and he is also going to do a pressure test. Hopefully whether it is good or bad news I will have something to go on.

Well I took the tstat out today and took it up on the hill after topping off the coolant. Everything seemed fine, the temp went a little over 210 but not very far. I then took it down to my parents hay field and ran it pretty hard doing some donuts and stuff, purposely trying to raise the temp. Well, it worked and the gauge spiked to 250. I immediately stopped and shut the engine off. I let it sit for about 15 minutes and turned the key to on. Oddly enough, the gauge spiked back to 250. So I started it up and it almost immediately dropped back down to 210. I went back to the house and let it sit and run and it started creeping back up to 250. I let it keep running to see if there was any coolant being spit out. There wasn't a drop coming out. If that thing was really that hot shouldn't it be spitting coolant? Also one time my buddy's cherokee got hot bc of a stuck thermostat and it started knocking and sounded awful. My motor doesn't make a weird noise at all. What I am getting at is, could it be possible that the gauge is more at fault here than actual heat? These are aftermarket auto meter gauges and the oil pressure and fuel gauges also act weird.

Sorry fellas for being kind of vague. It appears that the PO actually did the conversion to the newer style cooling system. I did not even pay attention to the radiator cap sitting there on the radiator and the lack of a pressure bottle. The radiator also looks basically brand new so would not think it is plugged, of course I know weirder things can and often do happen. As far as hot, the temp gauge was pegged at 250 degrees. The engine was definitely hotter than a normal operating temp. Unfortunately I did not get to check the coolant level because I was waiting for it to cool off but ran out of time and had to come in to work.

I was out messing with my Comanche today after eating dinner and the temperature gauge pegged to hot. It has two electric fans that were both running. The weird thing is, the radiator was really not even warm. Could this be a thermostat not opening? The engine was very hot so I am sure it wasn't just the gauge messing up. Thanks for any help you can give and Happy Thanksgiving.

Well I got ol' Bumblebee out today and took it up the hill. This thing is a hoss cat. I think the IAC needs cleaned though because it has a very high idle. Other than that it runs great. I can't wait to challenge it some. I did snap a few pics while I was out though.

I am not going to lie, I will miss my wrangler because I always wanted one. But instead of hacking up a good Jeep I traded around for one already hacked up and ready to go. I got this "Bumblebee" to my house at about 10 pm Friday night and now we have nothing but rain and snow in our forecast for at least a week around here. I am itching to try this thing out so bad I can't stand it.

That's awesome!

Hey all, I just recently joined and wanted to post some pics of my Comanche. My buddy traded for it a few months ago and I have wanted it ever since. I ended up biting the bullet and traded my 95 YJ for it. Here are some specs: 89 Comanche Renix 4.0 AW4 231 tcase Long armed fron with Fox Air Shocks Spring Over rear with revolver type shackles Dana44s from a Wagoneer with 5.13 gears. Rear is spooled and front has a Detroit I believe Rock Crusher Drive flanges Full roll cage dovetailed front and rear 9500lb winch ...and the best of all, an Audi Quattro Grill :banana: Here is a pic I will get more when I actually get it home! This is the YJ I traded to it