Okay, dove into it a little more, I'm thinking my temp sensor is reading low enough to cause trouble, but just not low enough that I noticed an issue. I unplugged the temp sensor and put a 150-ohm resistor across the contacts that go to the ECU The car turned the fans right on and the engine temp re...

My car has started overheating in stop and go traffic, especially if I'm driving on the freeway and then come to a stop for a few minutes. I assumed it was just a bad radiator fan or relay, but if I turn on the AC the radiator fan comes on as expected (it turns on maybe a minute after the AC compres...