Jerry is shooting you straight. Replace radiator (if needed) with OEM and run a 195 thermostat as he detailed.Avoid cheap store brand radiators, they have too many problems. Leaking, poor fit, don't cool as well, etc. I'd stick with the OEM Mopar (which has an all aluminum core) like you can get at a discount at www.wermopar.com.
Install a new 195 degree non-failsafe thermostat too. No RTV, use a paper gasket. A Stant SuperStat would be a great choice. So-called "fail-safe" thermostats in theory sound good but in practice they like to fail in the open position.
That's an interesting theory to put forth. Hopefully your cooling system holds water better than your theories.If the Wrangler could have a better cooling set up, it would be out there or be factory.
So...it always runs at 210 except when it doesn't?My rig will sit idle in 113 degrees/70% humidity with the AC blowing full blast (top on or off :happyyes and sit just at 210-215.
Your rig was meant to run 210 degrees no matter what
That's an interesting theory to put forth. Hopefully your cooling system holds water better than your theories.
So...it always runs at 210 except when it doesn't?
Plug in an ODBII reader and tell us what actually happens to the engine temps while you make your way around town. You will be surprised.The only time its not at 210 is when its warming up to 210.
Haven't been back on here a day after being gone a year and already the forum ninjas and trolls are as thick as they were a year ago.
Quick question about stock radiators. Hope I'm not hijacking since it seems the OP has been answered. About 3 months ago I bought an 04 TJ rubicon with 94k mileage. Haven't had over heating problems except for one instance. AC was going full blast for about 20 min. and then sat idle in a drive thru for about 10 minutes on memorial weekend. The temp gauge pegged out high and gauge alarm came on. I turned the AC off and windows down. Before driving off and getting air flow through the grill the temp gauge came back down to 210 and out of alarm. I drove the rest of the trip with no AC and windows down. 4 hrs. out of town and then off-roading in Austin, tx. then 4 hrs back home with no other issues. Since that time I have ran the AC some but not longer than maybe 30 min. It has not alarmed since. I was wondering if it was a fluke or if I should look at flushing or replacing the stock radiator. Would hate for it to become a future issue. Thanks for any input
OEM with plastic tanks seems to last about 120k miles before splitting across the top. Too bad that your failed early. Which did you choose instead? What are your expectations?Mine failed at 60k. Top plastic tank split. There was no question that my Jeep would never see another radiator with plastic tanks.
Mishimoto all metal. It's already outlasted the original radiator. The coolant temp flatlines at 206 under the most adverse conditions. My expectations have already been exceeded. And, whatever happens, I expect not to write a check for a new radiator.Which did you choose instead? What are your expectations?
From what I have seen, 120k is at least one standard deviation to the right of the mean.OEM with plastic tanks seems to last about 120k miles before splitting across the top.