I am at 150k miles and am assuming that everything is original. Especially the way the radiator blew up.Good point on the water pump. I am thinking maybe I should replace mine as well, I am already tgere
I am at 150k miles and am assuming that everything is original. Especially the way the radiator blew up.
Followed guidance on the forum and spent the bucks for Mopar. I have to say it was very tempting to go with something less expensive since there were so many options that were still rated fairly well and priced anywhere from 1/2 to 1/4 the price. I resisted and bit the bullet...
Mine used to run slightly hotter than 210 before I did a chemical flush and cleaned out the entire system. I ran it a total of 8 hours. Thermocure or Blue Devil is what I use.
I ran so far 3 flushed with BlueDevil, it didn’t seem to matter too much, as the color of the distilled water that I used in flush didn’t really change. I poured in Thermocure, and it it started to get black really fast. Are we expected to flush with thermocure till the coolant stays the same, and does not turn into dark black stinky thing?
I will run every lap for couple of days, with at least 3 hours of driving in total.I ran thermocouple for 1 1/2 days. Not saying I did it right, but this stuff reacts to rust. I’ve cleaned a lot of parts and BBQ smoker parts with Vinegar, and a few others that are more expensive, it takes 12 hours to a couple days to get a serious cleaning. I thought the bottle said 3 hours up to 3 days, but I don’t recall exactly. It obviously got some, but it was obvious to me that the stuff worked on it after a few days. Stunk to high heaven as well.
I will run every lap for couple of days, with at least 3 hours of driving in total.
Plan to drain the entire at the end of the process. Now when I did it one time, I can do it again.
The only problem with draining the block is the sudden shower that one gets when the plug finally comes out.
You found a drain plug on the block ??? I didn’t think we had those …
I think that I have found the root cause for my overheat problems.
I bought this kit for 90$, OIMERRY 28PCS Universal Radiator Pressure Tester for Vehicles, Vacuum Type Coolant System Pressure Leak Tester Kit https://a.co/d/5d7w88n
And ran positive pressure test. At around 13 PSI, I see that the coolant started to leak from the heater core.
I am currently running distilled water with thermocure, so my cabin stinks of thermocure, with this thing mainly pouring under the Jeep from the tube that is supposed to be for condensed water from AC.
With leaking heater core, it is not able to build proper pressure of coolant, and this brings air into the system.
I wish I had run this test before I replaced the fan clutch, before replacing a thermostat and before ordering a new Mopar radiator.
My lessons learned - always run exhaust in coolant (which I didn’t run yet) and positive pressure test. If any of these fails, no point in replacing half of the cooling system.
I replaced mine a few years back. Wasn’t to difficult, just time consuming.
There are some other write ups for it on this site as well.
I think that we have to use the block drain in order to remove all leftovers from the thermocure. Draining through the radiator does not really do the job, as it drains only like 60% of total in best case.
You need to get the 8mm square from Amazon, CTA Tools 2036 8mm Hex Drain Plug Wrench https://a.co/d/b4IWPrM.
Lessons learned - in order to break it lose you need to crawl under the Jeep, but when it is almost open, try to open it by holding the wrench with extender by hand. You don’t want to be under waterfall of stinky thermocure.
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