How exactly does this electric fan work? I know that it can be turned on with a switch while the engine is off, but does it act like the stock fan while the engine is running or do you have to turn it on when you want it to go? :-? :read:
I believe the stock fan is on a clutch that engages and disengages based on air flow and speed. Sitting in traffic will allow the stock fan to engage and pull air thru for cooling. As you speed up the air flow will cause the fan clutch to spin free on the shaft. The electric fan only runs when it is turned on, either manually or by the temp sensor.I'm not sure why this is such a big concern however, as the stock fan doesn't automatically engage either.
Originally posted by Don's Bolt
Here is how it works on my truck.
When driving the fan doesn't seam to turn on at all, that is as long as you are moving. When you slow down, or come to a stop, (at a light or in traffic) the fan turns on.
As far as my A/C in normal driving I don't notice any difference. The only time I noticed any loss in cooling was when it was 97 degrees out and I was in rush hour traffic. It still came out cool, but not super cool. I have a switch under my dash to turn on the high speed fan, I just flipped the switch a that gave me super cool A/C. As long as it is 90 degrees or lower I don't notice any differance.
I love my fan, and I am looking for a way to hook up a 2nd relay that will turn on the high speed part of the fan when the A/C is turned on.
Originally posted by Triton54
fellow bolt owners, all i did was hook it up direct, 30 amp switch rite in the cab, by the hood release, hi and low, as long as you remember to turn it on when you use the air cond. granted i did not use alot of jdm's pieces, but was much simpler to do. also used the 170' degree thermostat, In my opion they should have left the air off of these trucks and saved a bunch of weight,,,