2011 Severe Duty Cooling

[pastorjeep]

We just replaced my sons 1997 Wrangler with this 2011 Lib. I got it cheap with a blown water pump and dropped exhaust valve seat on cylinder #1. My son goes to college in Lakeland Fl. while we live in NC. Neither place is known for cold weather, since he is often sitting in traffic on I-4 I am considering adding a mechanical fan to this while putting it back together. What is everyone's experience with this "upgrade". Is the loss of mileage and power worth it or is the E fan good enough on a well functioning cooling system? The Jeep on has 115K miles and is in really nice condition. The other question I have is on the sun roof. It doesn't look like it os leaking and I am scared to even try opening it after reading the horror stories. Are they really that bad? Thanks!

 

[lfhoward]

I 100% think the mechanical fan is worth it. I installed one on mine and the cooling has never had an issue since. Also, transmission temperatures are lower, which will make the transmission live longer. The aux fan is also the main add on of the tow package, besides the hitch and trailer wiring.

No real impact on mpg that I noticed. It does whoosh for the first minute or so after turning the Jeep on, then quiets down. When the under hood temperatures clime, it will turn on and you’ll hear that whoosh and know it’s working.

 

[pastorjeep]

That is good to know. Most people claim a loss of 1.5-2mpg. He is stuck in Orlando traffic all the time and it is over 85 degrees most of the year there.