easy way to check ur fans work,(or dont) pull connector off rad temp sensor and short with horsheshoe nail. Even with igniton off fans should instantly whiz round. if they dont then rad blocked with crud/ wiring faulty/some other fault. but u must make sure ur fans work a.s.a.p. very important if ur stuck in traffic.Dont discount bottom of rad being full of crud.(These cars are OLD! ).This stops the temp sender seein rad is hot and fans dont come on.Get engine hot and if rad is cold at bottom, and round temp sender (should be warm ) then need you need new rad son!.