All puller fan pulls air from the front of the car, across the radiator. This fan is installed behind the radiator.
All pusher fan pushes air from the front of the car, across the radiator. This fan is installed in front of the radiator.
Someone correct me if I am wrong, but I believe that’s the way it goes. So each fan is pulling/pushing air across the radiator, they are just doing it differently. I think that sometimes people mess up and install them the wrong way and then it’s a problem.


If you want to do some troubleshooting on your dimming issue you can start by bypassing circuits with a jumper directly to positive. If you do this and can get the lights to stop dimming you have found your problem. If you cant, then it is an amperage/power problem.
What I am thinking is that this new circuit is somehow putting an additional draw on the lighting circuit and causing it to dim. If these circuits are isolated and ran separately you shouldn’t see a dim.
If they are isolated and you still see a dim, then it is a power problem.
I would run a wire directly from the battery to the light circuit and see if it still dims when the fan is on.
If it dims still, then you have a power issue. If it doesn’t, you will need to separate the circuits.

Oh, and is your pully painted blue to match that Ford part you just put in your car

Thats a great shot of your son in the car. I cant wait till my boy is old enough to help me with the car,,,, or at least try to help me.