Problem with wired up fan.

[PRO5OHHO]

Workin' with a 94 GT.

I've got my fan wired up to a on/off switch. It runs through two relays to the stock fan. I haven't had problems with it for the past year or so but over the past month I've noticed that the fan will only turn on about 10% of the time. What I mean to say is I go to drive it and I hit the switch and nothing happens. The next day I go out there again, hit the switch, the fan kicks on. Next day, won't work, next day won't work, next day - does work.

I just got done replacing the switch and both relays and it's not kicking on.

What piece of the puzzle could make it work intermittently? Either a part is bad and it doesn't work, or a part is good and it does, so why is it hit and miss? And quite frankly the fan is too expensive to replace it just to see if it is bad, which I seem to go through a fan every year. All I can figure from here is I've got a bad wiring connection somewhere.

 

[Mr. OAM]

It does snound like a loose connection.


Why two relays?


Get out your volt/ohm meter and start following the current through the system. Either you will find the loose connection or you will find a relay that is going bad. Everything may check out ok too since it is an intermittant problem. Best to check when the fan doesn't work.

You can also inspect the fan by itself with your meter to assure it is ok.

Steve