CAN ANY ONE HELP ME MY BOTH FANS ARE COMING ON WHEN I FIRST START THE CAR . I JUST PULED IT OUT OF THE GARAGE AFTER THE WINTER AND IT STARTED DOING THIS . I PULLED THE RELAY BESIDE THE RAD & THE PRIMARY FAN SHUT OFF BUT THE SECONDARY FAN KEPT RUNNING COULD IT BE A SENSOR ???? IF ANY ONE CAN HELP ME U CAN PM ME OR E-MAIL ME AT CRLandy@hotmail.com THANX RAY:hail:

 

im not sure what causes it, but mine does the same thing. i swapped a set of dual fans in my 85 iroc and they come on when i start it, but go off at about 100*. i usually turn them on manually at 160.