My 350zr keeps overheating when I have to wait in line or traffic very long and its warm outside. I did not hear the fan kicking on so I took it the Nissan dealership and they told me the computer module that kicks the fan on called the IPDM needs to be replaced. They quoted me $653 Anyone have experince with this or have any suggestions?

 

OH NOES!!!

They are probably overcharging you, but that doesn't sound like a simple diy either. Maybe research and scour junkyards/the internet for a used replacement.