Cooling fans running to long

[Dragon23]

I'm having a strange problem with cooling fans running for too long. When it gets to about 190 ish, they come on and pretty much stay, at least at idol I don't no about while driving. I'm on a custom tune which part of the tune requires fan speed changes, so I realize they will pretty much run steady. I desided to adjust them to stock settings for the 203 t stat, and they still run from about 190 even a bit less and it has been fairly cool in the morning lately. They should be cycling on and off, this is AC off by the way.

[mikel]

if you put the stock values in, they should behave like stock...

[Dragon23]

I should have tested for a longer time, they are cycling on and off, what I have to do is fine better fans that I can run the custom cooling settings on, and not be annoyed at the noise,
Thanks for getting back

[Whiterock1]

Never set fans to come on below the thermostat open temp. The lowest temp they should kick on at is ~10 degrees over T-stat setting. What kind of car do you have? I've never heard of a 203 degree thermostat. Generally, they are ~ 190, and stock fans come on 12-15 degrees higher.

[Mike_Levy]

All Hemis have 203° thermostats. Thats actually fairly cool in this day and age. Most are higher. My BMWs is 100°C, which is 212°F. Higher temps lower emissions, so they run as hot as they can.

[06MonteSS]

GM's are 187*..