Originally Posted by g19n87r
it stays around the 1/4 mark 155 or so and if i let it idle for a little it will get up to around 210 but never when im driving
Job #1 for you is to get your coolant temperature to CONSISTENTLY stay in the 200-210 range.
Your engine won't run right until you achieve this.
I would install a new Jeep or Stant SuperStat 195 degree thermostat. That might fix your coolant temp issue.