I have been having a problem with the cooling fans coming on. Both fans working with the AC on. If I turn the AC off, the fan on the pass. side will not come on and the car will overheat if I'm driving in traffic or sitting still. Any suggestions.

 

I searced the archives and found a response that might solve my problem. I will post again if I need further help.

 

check your fan relays when they fail your fan will not turn on.

 

first of al make sure thermostat is opening up,,,if it is .jump the coolant fan swith it is the plug in the thermostat housing below the distributor,,just unplut it and jump the 2 wires together if fan comes on replace switch

 

it is not the fuse and it is not the fan relay because as you said the fan works when you have the a/c on ,it is t-stat. fan switch or wiring