Yeah, and I didn't see that you have the 4.7. I would NEVER risk overheating a 4.7. EVER.

I ran my 5.2 without a fan in the winter and was fine, and you would probably be fine with the 4.7 as well. But if I had overheated my 5.2 I would ave probably had to pull over for a few minutes until it cooled. If you overheat your 4.7 there is a very big risk that you will do serious engine damage.

With that being said, I have no idea how good your e fan is. I would guess that it would probably be just fine. Do you do much in town driving?

well, it the gains are minimal and the risk is high, then it sounds like it's not worth the effort. why is the 4.7 at higher risk? is there a common failure that i am unaware of?

as for my efan, it works great, turns on with the AC and when things get hot, but it's just not enough to cool on really hot days or when towing. i do a lot of city driving (not necessarily stop and go, but slower speeds)(although we do get traffic jams in detroit)

i havent had one on in 3 years. The electric fans, in stop and go traffic keep it cool, and I live in Georgia

Good post!

I haven't had mine on for a couple years either... no problems.

I replaced my mechanical fan with an electric one from a Taurus. Running with nothing but the factory auxiliary fan just screams bad idea if you ask me though.

Its not a thing to keep it one.. If you have the stock efan, (2000+) then it comes on at 210+ degrees which is supposed to keep the motor from overheating.

I'm in Georgia too and you're a braver man than me. With my constant sitting in midtown Atlanta traffic, that's one mod I won't chance.

It's not designed to cool the engine on it's own though, just to be a supplement to the mechanical fan.

Some of you guys are way too worried about things.
With the correct set up on an E Fan you will have absolutely no problems. Only benefits.
But hey, if you can't trust your truck or the work you do to your truck then yes, I agree you should leave everything stock and dont mess with it.
Keeping the mechanical fan is foolproof.

But we're not talking about replacing the mechanical fan with an electrical. We're talking deleting it and relying solely on the secondary electric fan that comes with tow package, right?