fan question - Third Generation F-Body Message Boards

mark 87gta · 09-04-2009, 09:37 PM

i got an 85 trans am 377 sb i got rid of the ecm cause i went with a carb how would i wire my fan up on a toggle switch do i need a resistor or anything any help would be thankful i have it wired now to run with the ignition but it keeps melting fuses

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jimdutro · 09-05-2009, 06:21 PM

Mark, if memory serves me right you can tap into the green/white striped wire at the fan relay and connect it to a toggle. That should ground the relay and turn on the fan manually. Since you are not connecting to a power wire, no more fuse problems and no resistors needed.

RaGiN Z · 09-09-2009, 01:24 PM

for $30 at Pep Boys you can get a wiring harness for up to two fans, relay, and adjustable dial from 80* and up! I say, save yourself the head aches.

camaronewbie · 09-09-2009, 07:02 PM

That's what I did with mine - I wired in a seperate fan controller because I always had issues with the factory fan switches going bad, and I got tired of getting a face full of coolant everytime I had to replace the switch. But I used a more expensive Flex-a-Lite controller that has provisions for switches and such. It was easy to install, has a probe for the radiator to get temp, fully adjustable, and has worked great for 3 years now.