Ok, went out to the garage, opened the door and started the truck. Lifted the hood to be able to watch the fans although they are loud enough to hear with it closed.
The motor is running the ac is on and the fans (both are running) I turned off the ac and both fans stopped, so I let it idel. It reached operating temp (just below 210)a couple of minutes later both fans kick on so I let it run and a couple minutes later both fans cycled off. So I'm going to assume that the fans are set or programmed to come on at or around 200. The stock thermostat is 195 or 200 isn't it?
So it would appear that the fans are programmed to cycle on and off without the ac being turned on. That's good right?
If I change the t-stat I'm going to need someone to reprogram the cpu to turn the fans on at the proper temp..
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by HUMMERcustoms.com/TAZ:
Fubar the fan sounds programmed correctly. Unless they just hooked it to the ac switch and then the fan will get power as long as A/C is on. If You turn off A/C and just let it idle and if fan does not come on ever then it is not hooked or programmed to turn on and off at correct temp.
I'm waiting for My new software from HPTUNERS so I have My fans running only when ac is turned on. Once the software gets here I will tune it to come of and on at temps without A/C. If weather is nice and moving 25 MPH or more i turn A/C off and let air from forward movement do the cooling. You just have to remember to turn A/C on.
Fubar You can only do what dealer wants but one of the best examples of putting the 160 drgree t-stat on is Ligenfelter. They do it on every ride. My normal temp run just in 100 degrees not pulling hard is usually 180 degrees. I think at some point You will need t-stat. but, with cool weather coming play their game a while.
Fubar also if You want to come My way go ahead and caravan with KenP and PARAGON. </div></BLOCKQUOTE>