I was wondering why it does that i have a mopar radiator that’s few months old. I don’t trust part store radiators.That’s right where it’s supposed to be. Nothing to worry about
Newer computer controlled vehicles like to run at a higher operating temp. Even the V-8 I swapped into my TJ runs at 210* as a normal operating temp. Unless you get your PCM reprogramed to use a lower temp thermostat it can actually mess things up.
Thanks for the information, I was about to ask the same question, anything above 65 MPH with AC on I am running just past the 210 indicator. during the winter I swapped out the water pump, flushed radiator system, and changed thermostat with 195 deg. and it was running just under 210 with no AC. At what temperature do I need to start worrying about over heating the 4.0 engine?
Not sure what you mean. The 195 is the proper stock thermostat for the 4.0.You should switch back to a stock temp thermostat as the colder t-stat can cause it to not run correctly unless you have a tune on the PCM that changes the temp the engine needs to achieve.
Not sure what you mean. The 195 is the proper stock thermostat for the 4.0.
The top of the normal range is 220.Thanks for the information, I was about to ask the same question, anything above 65 MPH with AC on I am running just past the 210 indicator. during the winter I swapped out the water pump, flushed radiator system, and changed thermostat with 195 deg. and it was running just under 210 with no AC. At what temperature do I need to start worrying about over heating the 4.0 engine?
Mine also does that with the AC not on but when I got cold air blasting and running at 70mph it’s slightly above 210 so I figured something is up but it did that for 2 hours when I’m on the interstate and it would go down to 210 when I hit stop and go traffic.Thanks for the information, I was about to ask the same question, anything above 65 MPH with AC on I am running just past the 210 indicator. during the winter I swapped out the water pump, flushed radiator system, and changed thermostat with 195 deg. and it was running just under 210 with no AC. At what temperature do I need to start worrying about over heating the 4.0 engine?
I got a tune that does that lolYou should switch back to a stock temp thermostat as the colder t-stat can cause it to not run correctly unless you have a tune on the PCM that changes the temp the engine needs to achieve.
That's perfectly normal, don't worry about it.Mine also does that with the AC not on but when I got cold air blasting and running at 70mph it’s slightly above 210 so I figured something is up but it did that for 2 hours when I’m on the interstate and it would go down to 210 when I hit stop and go traffic.
I used to have an XJ so I’m kinda new to this wrangler stuff lolAgain, perfectly normal.
I don't recall my '89 XJ being much if any different.I used to have an XJ so I’m kinda new to this wrangler stuff lol
On the other side of 210 from 208.Where the hell is 212?