[JustJeff]

Originally Posted by Pete_89T2

Congrats!



On #2, when you "manually turned it on", how did you do that - shunt/short circuit the fuse terminals to get it to run? With a new fuse in there, does it tend to blow out the fuse as soon as the fan kicks on? If the answer to both is yes, then it sounds like your fuse may be undersized for the inrush current load. Whenever you start an electric motor, the instananeous current draw is many times higher than its steady state current draw. If the fuse can't handle the inrush current, it will blow out every time.

I wired in a manual switch and mounted it on the dash panel below the steering wheel. I flipped the switch and it came right on. Flipped the switch again and it turned off. Then never came on again. I'm using a 40amp fuse on an inline holder.
I'm going to go over the wiring again. I believe the ground wire going from the relay to the ground is undersized. I'm going to go all 10ga wiring for the fan. Right now some of the wiring is below that.

As for the gauges I'm suspicious of my ground for both the boost and pressure warning gauge. The water temp gauge is grounded in the engine compartment. The boost and pressure gauge are grounded in the cockpit. Last I checked the temp gauge worked fine, but I did not check it last night. I was kind of rushed trying to get to a family dinner. Starting up the car and idling it was the last thing I did before leaving kinda hastily.