Radiator Fan Question

Have a quick question about the dual radiator fans on an 04' Quest. Should they both be running (radiator fans). Only one of mine runs and my A/C does't always blow cold at idle. Someone told me that it could be a radiator fan, so we checked and only one was working.
Thanks!

With the AC on an depending
With the AC on an depending on the engine temperature the second fan will kick in at different speeds and/or intermitently. How long did you let car idle with the AC on? sometimes and depending on outside temperature it may take a while for the second fan even begin to turn. Keep an eye on you engine coolant temperature while idling.