So i just had my 305 tpi rebuilt in my 1987 IROC, and I get it back and notice the radiator fan isn't working.... anyone know what might be causing this? I think its the wiring but I'm not sure. Help me out guys!

Thanks,
Spencer

single fan or dual fan?

Dual

the main fan is controlled by the ecm. the secondary fan comes on with the ac and i believe is also controlled with a fan switch. but im not 100% on that. if neither are working id assume they might be disconnected.