I posted a few times on here in the past about this issue and I am out of options.
I have had a 13 rubicon for 3.5yrs my lift, tires, winch, etc., etc has all been done for 3yrs. I have not changed anything for yrs. 37's, 4" lift. 2013 rubicon 38k
Any issues I am describing are new. I can drive around the city all day, up hills etc. No issues. However at 65+ leaving denver heading up into mountains I get less than a mile and I'm at 2/3 on temp gage this is not normal, I drive west not less than 6 times per month for 3 years, this is new.
Things I have done to attempt to fix....
Changed out raiadiator with custom built high efficiency copper brass, (also have since swapped the raiadiator with OEM to confirm issue is not raidiator then put custom back)
Changed water pump (first thing that was done had exact same issue with new pump, problem not the water pump)
Had system flushed twice by different shops
Installed poison spider hood lovers
3 different thermostats and housings
Backer plates with water pump
Had compression and leak down test done all with in 5
Tonight I got it back from dealer and I drove it home with the temp gage in the middle the raidiator hoses on top and on bottom were 175 degrees....with a 203 thermostat that seems odd.
Can someone tell me if this is crazy or a how to do it. The whole thing that started all of this was my thermostat housing cracked and was leaking, I noticed it as I was driving one day. Stopped at O'Reilly grabbed some green Prestone pre diluted 50/50 and added it to fill up system before driving it home, got home it was leaking all over garage, had it towed to raiadiator shop and then the story begins.
I have been through raidiator shop, jeep dealer, and ford dealer. (Know a guy there) they go I dunno....
my thought is, is it possible that I mixed hoat and oat causing the channels in the block to become plugged? If this is the case how do I remove it? I would assume the shops that did the flush just did a vacume, not sure if that would be strong enough to pull it out. I do not need a lecture on hoat and oat.
Total to get to where I am now is $2,600 in between raiadiator, flushes, diagnostics, pumps, thermostats, etc. Almost 10 weeks I have been without because everyone here is so backed up.
Clearly I'm not a mechanic, never claimed to be one. I have a nice jeep that I have spent10's of thousands of dollars to get it where it is and now I have an issue, that no one seems to be able to help me with. Any thoughts?