I switched from a straight fan in my 3rd gen to the electric fan a while ago. I had it wired to the alternator so it would only run when the car was running, but now it seemed to die down and only barley moves with the car on. Is there anywhere else I could wire it into so it only works when the car is on???

 

Are you using a relay in your circuit? Just wire it to a 12v switched ignition source.