well i practically took everything off to do an upgrade then i reinstalled it and the rad fan doesnt want to turn on. i did coolant flush .check on the control box if it is current and it has. leaks i didnt see any yet. check fuses it seems ok . i let it iddle for 5 to 10 mins and does not turn on. but other thing that is weird the the temperature gauge that is on the dash board doesnt raise.
what could it be please ideas

 

did you burp the coolant system after you flushed it. try giving power directly to the fan so see if it works.

 

yes power directly to the fan works

 

Burp ?

 

Basically bleeding the cooling system. Fill cooling system to spec and start the vehicle without the radiator cap on. Let the vehicle warm up and top off cooling system as needed. Once car has reached operating temp throw the cap on. I like let it fully cool off after the first drive and than recheck the level.

 

Yes I did the burp

 

what is the temp outside? at what temp does the fan turn on; do you know? using a temp gun check to see if the upper and lower radiator hoses are getting hot (over 110 at least) your thermostat might but stuck open. did you double and triple check all over your electrical connections?

 

sounds like a ground problem.. if u put power to the fan and it came on then it has to be.. also when ur burping sys put ur heat on full blast and bring up rpms to 2k and squeeze upper hose with cap off...but like minion said it could be a stuck therm

 

well i try to put heat at full power and squeeze the upper hose i seem to push back the liquid and yes i did check the electric more than one i think i should be the thermo. anyways does someone know on the control fan the black box thing has 3 connection i should be only two only 2 connector that connect it? or should all 3 be connected cause i only found 2 connector for it. if it is only two i think as you guys said is the thermo problem