I have a 97 Honda Civic. Lately my cars temperature has been very high, almost always up at or near the red. Sometimes it will come down slightly, and it’s getting rare that it will be down where it should be. This has been happening for a couple weeks. I use my car to delivery drive, and so it gets used for 5-6 hours and never actually overheats and breaks down. It seems like more of a electrical issue, although thats obviously a complete guess which is why I am asking here. I have also thought maybe the thermostat could be shot?
Does anybody know what could possibly be happening to cause this? My coolant is fine, and I just had an oil change so its not from my oil being old and thick.