The way I'm looking at it is I've burped it. Replaced everything !!! Even done a head job !! The only thing left is a clogged block. If this doesn't work I'm going to have to pull the engine, tear it down and have it boiled so it's worth a shot !!!

 

have you replaced your sending unit yet? i had the same thing happen with a cj. gage said too hot. replaced the water pump, thermostat, and radiator. didn't change anything. a mechanic told me to replace the sending unit. i did. it worked. it was cheap. i cost myself a lot of money by replacing the expensive parts first. sending units are cheap and easy.

disregard if you have already done this, but i didn't see it mentioned in the thread.

 

Hope some dumb ***** doesn't try drinking CLR, thinking/reading it's safer in a motor than Mountain Dew. LOL

 

Well I let it soak for 24 hrs and drained it out. Back flushed it again and now I'm probably going to need a thermostat again. Thanks for all the help!!! FYI one gallon of CLR and a gallon of vinegar soaked for 24 hrs cleans the block really well !!!!! Do not use this concoction as coolant !!! Do not drive it until it's flushed out.

 

Best way to flush the block/head is with both the t-stat cover and water pump removed.....stick garden hose in t-stat hole.

 

Or spend $35 bucks, get new block plugs and just knock them out while the head is off and clean the whole thing out... lol, what my mechanic advised me to do, I bought them from summit, didnt need them black was clean, now i have freeze plugs for nothing at the moment. They might not have been that much even. Just a thought before you go pulling the whole block out. Knock out the freeze plugs.

 

I still don't understand this whole thread at all. Questions have been asked but not answered. Parts have been changed but we don't know which ones precisely. Advise has been given but, for the most part, ignored. Plans are being suggested to do a complete overhaul over something that could be as simple as a bad sending unit or a bad gauge.
A lot has been done but we need to get back to basics here.
First of all, how hot is too hot. Climbing to the red isn't helpful. Neither is "I've replaced everything!!!" The first thing I would do is to verify the actual temperature with a temp scanner. Jeeps normally run hot, anywhere between 200-220 degrees. If an external scanner shows temps within the above range then the most obvious culprits have to be either a bad sending unit or a bad gauge. If the scanner verifies that you're running hotter than that we have some information to work with.
So with all of the above in mind:
1) Have you verified, with a temp gun, that in fact you are running hot? If you are running too hot, what is the actual temperature?
2) Have you tested or replaced the temp sending unit at the rear of the engine block?
3) Have you tested or replaced the temp gauge in the dash?
Both #'s 2&3 have been known to be defective right out of the box. Thermostats have also been known to be defective right out of the box.
Another thing that can cause overheating is a faulty oil pump.
I hate to think of you throwing loads of cash and dozens of hours of labor at something that could be as simple and cheap as what I've asked you. I'm not trying to be a pain in the a$$ but I reread the whole thread and didn't find an answer to my three, (and other guys) questions. All I found was a lot of second guessing and overthinking what could be an easy problem to fix.
I'm not trying to give offense and I apologize if you take it that way.
By the way, that mountain dew can you used to test your clr concoction is coated inside with an epoxy resin to resist corrosion from acids in the soda.

 

Very well said and I agree.

 

Do only Jeeps run 200-220 with a 195 t-stat? Don't think so. Why is it always said "Jeeps run hot" when most other vehicles, back in the day, also came with 195 t-stats? Could it be that most other vehicles also run 200-220......there's just no number in the middle of the temp gauge indicating temp?

 

First of all, in no part of my post, did I say that only jeeps run hot. I'm well aware that other vehicles run at those same temps however we are not trying to diagnose problems with other vehicles, we are trying to determine if there is in fact a temp problem with a JEEP!
Secondly, we are not "back in the day" and we are not trying to compare vehicles from "back in the day". We are attempting to compare the temp readings from the OP's jeep to normal jeep temp readings.
And last, your post is not any more helpful than what I read anywhere in this whole thread. It asks for no information that would be helpful in diagnosing the OP's cooling problem and offers no advice pertinent to the same problem.
I would suggest that before you chime in with what you feel is important, you read the entire thread again with particular attention to what has been asked of the members, how and if those questions have been answered and what has been offered by the members as possible solutions. Once you have done this, you should ask yourself if what you posted in answer to my post is in any way helpful to the problem at hand.
I'm not trying to get into a pi$$ing contest with anyone here. I simply gave my take on the information supplied and found said information lacking. The questions I asked in my post, to my mind, are the most basic and should have been the first questions asked and answered. I'm just trying to help as much as I can but without proper answers to my 3 basic questions I am, as is everyone else, just shooting in the dark.

 

Yikes, did I ever just get told by a junior member. I'll be more careful when I make a cooling system post.

 

rudy,
you may not have intended to start a pi$$in match....but i think you did. not your fault though. i think your post was intelligent. don't back down! I'm cheering for you.

 

Thank you, I was only trying to help but it seems you can't really help people who don't want it and I guess that being a "junior" here means that I don't have anything worthwhile to add to the discussion.

 

Thank you for the admission...and for the "junior" comment, I haven't been called that since 1969!

 

Don't flatter yourself.........I was being facetious.