What troubleshooting steps should I take next? Noticed my jeep just goes over the 210 mark. If I turn the heat on the lowest setting and give it about a mile, it will stay at 210. Issue is only seen at highway speeds (65+).
I removed everything in front of the radiator, in fact I current do not even have a bumper on it. Did notice that at night time when the temp is between 70-80 runs just fine (210). Has issues during the day when its high 80s low 90’s.
Already replaced 99% of the cooling system. Org my jeep was running about 230+ now I would say maybe 215-217. So changing the water pump, tstat, radiator cap, radiator, hoses (with factory), temp sensor and fluid change with 50/50 + water wetter has helped, just need to drop it a few more degrees.
My though was if I could turn the heat on there was an air flow issue, but there’s nothing in front of the radiator to block it. Lower hose is pretty cool least enough to grab onto, so the radiator is doing a good job. No cool spots in the radiator as well.
Any thought’s of what to check next?