Alright, I got the Taurus E-Fan installed and it ran great. Well that was before the temps out here got above 100 degrees. Now if I'm driving on the road or highway it stays around the normal mark, which is a little below the halfway mark. This is based on what it was running with the mechanical fan attached. Now, if I stop driving like going through a drivethru or go slower then say 20-25 the temp starts to go past the halfway mark. I'd say the farthest it has gone was a 1/4 of the way between the halfway mark and overheating. Now this isn't boiling over or anything but I shut the truck down when it got to this point so nothing bad would happen. I checked to make sure the fan was running and it was. So now I'm thinking of wiring in the highside on a manual switch. Now if the low side is getting power and I flip the highside on, will this damage the fan, since it will be getting power from 2 sources? I was also thinking that maybe I should flush the coolant system first since I have 80K on the truck, and I don't know the maintanence that was perform prior to my acquiring it. Maybe the coolant isn't that great and that is hindering the performance of the fan. Also the radiator fins are fine, and nothing is blocking it.

 

are your fans blowing the right way? sometimes reversing the power leads make the fans spin the opposite way

 

Are you using a 180 degree thermostat? Running the engine cooler and starting the eFan a lttle earlier would certainly help. A cowl is also important in effectively pulling air through the radiator.

 

Check the polarity. Is this a junkyard fan? I always worry they won't be working properly. A fully functioning (properly wired) taurus fan should move more air than the clutch fan at idle.

 

The fan still had the pigtail adapter, so I wired ground to the black wire and the positive to the Orange one (I beleive, can't remember the color right now), it was pretty much the smallest gauged wire of the two that were left. When the Fan turned on for the first time, I remember dust being blown toward the engine, so I think the fan is wired correctly.

I have the stock thermostat on so I don't know what temp that would be, and I have the fan set to come on when the temp gauge hits the midway point so that it won't come on while driving on the highway.

When we were testing it out in the driveway when the fan turned on, the temp went down pretty fast, but it was just idling in the driveway on a 85 degree day so not as hot as it is now.

The fan is mounted to the radiator, with the shroud behind it. I don't have the 2nd piece attached to the shroud. I wouldn't think that would effect the amount of air the electric fan could pull at slower speeds.

 

Let's see a pic of how it's set up. You need to be pulling air through the entire radiator surface, not just the center. For a stock tstat, set your fan to come on about 11 o'clock. 12 is a little late.

 

Alright, I'll get a pic up later today. Based on what I read for the write-ups, there wasn't anything additional that needed to be fabricated. It was mount to radiator, put stock shround back on and call it good. Hopefully I didn't miss a step.

 

Oh yea, how many volts should be drawn from the fan on the low side? Maybe I have a poor ground. Can't remember if I hooked it up directly to the negative terminal on the battery or not. What would be the most accurate way of measuring this as well?

 

I think you mean amps. Can be measured with a clamp-on gauge or in series with most other gauges. I don't remember what the Taurus pulled but it was high. Something like 40+ amps.

 

Something's outta kilter. My e-fan will pull the temp down to where the 'stat closes even on a hot day in traffic.