I know I’ll get grief for this, and I apologize ahead of time for being a dumbass.
I have a leak in my stock radiator and was hoping to buy some time, and replace it myself in the spring when it was warmer, so I added k-seal (recommended by the Jeep guy at autozone) and now I seem to have erratic temp readings on my bully dog tuner. The dash gauge doesn’t really change much at all.
Before all this, It usually hovered around the 190-200 range, and changed slowly, but now it goes from about 182 to 206 rapidly, and then cools down rapidly. In town the other night, it jumped to 226 and I turned on the heater to lower the temp, which it did, and then I just drove it back home. I burped the engine on an incline. It needed some coolant (because of the leak I didn’t know I had) so I’m sure there was air in the system, and maybe I need to do it again.
I have 200k on this stock engine but I run larger tires with a lift and all the fun extras, but it’s been so since I bought it new in 2010, so I don’t think strain is an issue now. I’m trying to find decent info in the thermostats and the temp sensor but haven’t found anything that really fits.
The fan starts on low when it hits about 194 on the tuner and then on high at about 204 or so and it seems to cool it down, but I’m worried about the random spikes and the fact that it’s acting differently than before. The coolant looks fine, no gel or goo of any kind.
If any of you wise jeepers have some insight, I would sure appreciate it.
Thank you in advance