2011 equinox coolant temp sensor

[HackSawyer]

It’s a 2.4L engine. The fan wasn’t coming on. I replaced the coolant temp sensor and when the temp went up, the fan kicked on. However, it stopped working within 30 minutes. I ended up putting in another new one. Sometimes you get bad parts. Especially from China. When I put the new one in, it did the exact same thing. It worked, for about 30 minutes. It’s got to be something deeper than the sensor. Any ideas?

Thanks.

 

[Hey Vern!]

bad relay? Low coolant level?

 

[HackSawyer]

The relay works. Otherwise, the fan wouldn’t turn on. Plus, I tested the relay. The coolant level is good.