Need support. Just found out my radiator is leaking

[Fless]

Next time you think you hear them running, pop the hood and verify. Nothing like empirical evidence.

 

[Doubeleive]

Maybe it’s 210. It has to be higher than the thermostat is set to be when it’s wide open. One will come on when the ECM decides it’s needed or the AC is turned on and the second when either the AC is on high or the first one isn’t enough. I do not remember the exact temps. Worry away if that’s your thing. You will know when the fans turn on even if you have a loud exhaust. Your voltage gauge will also drop momentarily. They’re pretty damn loud.

on the gmt900's they both power on at either low speed or high speed, I know high speed will kick on while driving at 230, other than that not sure. You can check them I believe by turning the ac on then they should kick on unless perhaps it's pretty cold out.
there is no separate left/right control if one is not on then there is a problem with that fan, motor/harness/fuse/relay.
when it's cold out you probably won't hear them much

 

[iboughtatahoe23]

Next time you think you hear them running, pop the hood and verify. Nothing like empirical evidence.

I was a little
Over quarter way to operating temp and they weren’t on.

 

[iboughtatahoe23]

On the Facebook groups a lot of guys are saying it’s totally normal. And everyone telling 210 is rather on the high end. What yall think

 

[iboughtatahoe23]

Been running 20 min and only here. 20° out.

 

[iboughtatahoe23]

Coolant level is a lil below that full when cold line. Half inch. Engine cold.