Got a Dyno tune for 5.3 silverado, question about my radiator fans

[Ryansal]

Hello all, 

 

I had some long tube headers put on my 2018 5.3 silverado with a high flow 160 stat and a "street tune/calibration", the truck ran great without the radiator fans running all the time.

 

This tune/calibration was taken off.

 

I recently got a Dyno tune done to the truck and my radiator fans are running NON STOP.

 

Was this because the technician made a mistake and didn't realize I changed my thermostat, or is it even with a high flow 160 stat the fans now have to run all the time? 

 

please advise, thanks a lot!

[CamGTP]

What is the cluster saying for temp and what is a handheld scanner saying for engine temp?

 

If they are both equal or very similar then it's not the temp sensor at fault. I think the fans can run if the temp is too low though, a 160 thermostat is not needed anyway even if you live in Texas or Arizona. The truck will heat soak regardless.

[Ryansal]

HI, I'm supposed to go back this Friday for something else and figured I would bring it up to them at that time, not sure what the cluster and scanner are saying regarding temp.  We're in Florida.