I put a carbed engine in my 89 T/A that had 305 TBI. The alternator has power to it but the tan/white wire(which I think tells it to charge)doesn't have any power. I am going to check the fuse but was wanting to know what to check after that. The gauge in the dash works but it's not charging.

Thanks.

 

The tan/white wire gets power from the FAN fuse. If it is blown or removed, the alternator won't charge.

Hope this helps.
Lou

 

tan/ white wire?????

is it different in the camaro, ive got a 92 and my alternator was not charging the battery. the red wire in the pigtail has power, but there is no ground from the black wire. is that the problem w/ mine. should there be both ground and power at all times even w/ the car off?????

thanks

 

The black wire you're referring to is probably a dirty brown wire.
It needs to have 12V on it (with the key on) for the alternator to charge.
Some cars have a brown wire, some use a tan/white to the alternator. No matter what the service manuals say.

Lou

 

the key just has to be in the "on" position. the car doesnt have to be on correct??
why would mine not have 12v on it

thanks for ur help

 

got it, when i replaced the pigtail on my car(originally had two wires) the people at autozone gave a pigtail w/ three wires. Red, black and a brown, the lady at autozone told me just hook up the red and the black, the brown goes to the fan. so thats what i did

looking closely at the old wire, yeah it IS a brown wire!!!!!
that and i replaced the fuse everything is working now

thanks big lou

now if i could just figure out the cooling problem

 

If it's the cooling fan circuit that's giving you trouble, try this tech article: http://www.austinthirdgen.org/index.php?pid=36

If it's the actual cooling system, there is a separate forum for it here. It's called "Cooling". You'll find a lot of info and advice there.

Hope this helps.
Lou