I have a 250k 97 gti with a 2.0. It was driving just fine until i started to realize it was climbing a bit over operating temperature. I pulled over and realized my fans weren't on. So I did what needed to be done to it anyways.
New water pump
Also replaced the sensor in the rad
After replacing all of that, still the fans don't turn on. I tested the fans and they work both low and high. I also jumped the FCM and it works low and high. The radiator is not clogged, and I don't have any leaks. Does anybody have any ideas on what it could be?
Well, i found my own problem here. After doing all of that, i went out and bought a radiator for it. replaced it, and it was still acting up. so i went through the wiring for the fans, and found out it was my ECT.