im a turbo swapped lsj while on highways doing 50+ mph my coolant usually sits at 178-183 range lately its been going all the way to 200+ the thermostat was just replaced my next thing is the water pump... thats probably the last of my ideas do you guys know of any other things that could be causing my problem?

 

Well....I'm going to go over everything from simple to extreme.

1. Fluid level good
2. Fluid still in good condition
3. Did you mix Dex and the Green stuff??
4. Has it been hotter out lately?
5. Did you block your intercooler somehow lately mounting something?
6. Do both of your fans work still?
7. I doubt its a pump and that's far from a simple fix on these cars and I have yet to see one fail.
8. Has it been humid lately, running a/c a lot, not turning heater on lately.

Also, just saying anything under 220* is perfectly fine with this car.

 

My car saw 200 every day it gets above 75