So this is my last attempt to fix this overheating Jeep before I drive it off a cliff into a river.

When I bought it from the PO it had three red electric fans (I can't find a brand on them) and a new 1-row aluminum radiator. In the hot summers climbing slow hills it started to over heat. Also, it actually is overheating and not just a broken gauge or me saying "It's a little over 210". I am talking full red, coolant bubbling out like crazy. I've never driven with it in the red in an attempt to save my head gasket/head. To make a long story short here is what I did last summer to attempt to fix it.

2-3 full coolant flushes
Redline water wetter
Two different types of coolant
Checked thermostat and hoses to make sure there is no "clog" in the system
Brand new 3-row CSF radiator
Rewired the electric fans to turn on sooner

So I have narrowed it down to the electric fans themselves. They must not have the flow to cool the Jeep at low speeds. They do not have any "ducting" except for the fan bracket/housing they are in. The are currently mounted on the engine side of the radiator and pulling the air off the radiator towards the engine.

I want to convert back to the stock style engine driven fan with the nice fan shroud. Here are my questions?

What do I need? Fan, clutch, fan shroud? Anything else?
Will it fit with the 3-row CSF radiator?
Was there a stock electric aux/AC fan or just the engine fan?
Is there any DIY articles that can help me out?

I appreciate the help, you guys have always been great!

EDIT: 2000 XJ Auto I6

 

those fans are FF dynamics. I run their triple threat kit

 

Just curious are you sure the fans are turning in the correct direction? Since the dc motor will turn either way depending on the wiring. Also which way are the blades pitched? This also makes a difference on the air flow.

 

Have you thought about the water pump?

 

The fans are setup as puller fans right now. All three pull air from the radiator and it flows towards the engine.

 

What would cause the WP to have such poor cooling? I guess the blades could be so clogged where it doesn't actually pump any coolant but then I would think it would overheat in cooler weather too as there would be no coolant flow.

 

Just looked them up. It looks a LOT like my fans, they dont have many pictures though.

It says right on the website that they are for DD and light offroad only. Also only up to 95-degrees and NOT high elevation.

That would explain why I cant do normal offroad, mountain high elevation, and over 95-degree temps, haha.

I guess I could find a good fan kit, it might be cheaper.

 

My Jeep was overheating and the blades on the impeller were almost completely gone. But you said both hoses were hot so it must be circulating. You could always pull it and check it though it might be not circulating as good as it should. Are the fans pitched a certain way that they should be set up as pushers? It could be your water pump impellers are worn a little and won't move much coolant at lower speeds.

 

True. I will replace the water pump at the same time. However, the fan's website says it isn't good enough for my situation so I still need to do something about my crappy fans.

 

IIRC, factory heavy duty cooling consisted of 1 mechanical fan and 1 electric fan. Heavy duty cooling was standard on XJs with factory a/c.

I presume no overheating at hwy speed?

 

Correct, it has always been fine at highway speed.

So here is the cooling list that I can think of.
1. fan clutch
2. fan blades
3. aux fan
4. fan shroud
5. W/e bolts are used on the fan clutch/blade

Nothing else missing? I hope this all works with the CSF 3-row.

 

keep that stuff and do hood vents
they really help a lot.
if you dont like hood vents you can do the washer between the hood mouting bolts, a few on here have done it

 

Go to a junk yard and get everything off the stock jeep

 

Fan shroud is very important. With a good clutch, the belt fan pulls more air than most people think. I'm not sure about hood vents....seen the ScanGauge momentarily indicate 230F on ours sitting in the driveway, hood up, a/c on, triple digit ambient.....same temp in stop-n-go traffic (hood down).

 

FF dynamics does not recommend a 3 core rad with the fans. They say 2 core. I do run a high flow water pump and balanced t stat and a bored out t stat housing. I can idle in traffic all day long, all with the original rad.