Right, it turns on at a certain temp (I believe it to be around 190) and runs until the temp cools down to another temp (which I believe to be around 180). I just want to get the exact temps. Reason is my T-stat does not begin to open until 185, so the engine temp could never sustain less than 190 or so, so the fan would never shut off. This is a problem for a few reasons:
1. Fan on high pulls alot of current = alternator wear + shorter battery life.
I have never had any problems whatsoever regarding the fan being on all the time. Mine is on HIGH forever, never lost an alternator or a battery in over 5 years?
2. Fan on high all day wears out fan motor = more frequent fan replacement.
Same here, over 5 years never had a problem
3. Higher current demands require alternator to place greater load on engine = slight loss of engine power.
""""
Solutions:
1. Get new chip with changes made to fan control
2. design/install fan overide switch
3. Get lower T-stat so engine can actually get below 180
I always have and alwaysy will swear by and reccomend the 160 T-Star.
4. Manipulate coolant temp sensor circuit to make PCM think coolant is say 10 degrees colder than actual.
either way I need to know the on and off temps for the cooling fan. I can find this out experimentally but it would be easier if someone knew.