How hot does it get actual temp wise without the fan coming because most of the gm cars fans dont come on till at least 222 degrees.
Here is a wiring diagram to help trace the problem down I noticed there are three relays did you replace all three? If so the ECM driver that controls the fan relays could be bad.
Please run some tests and get back to us so we can continue helping you.
Tuesday, December 6th, 2016 AT 5:03 PM