The pics below show what is happening in the over flow bottle. The coolant is getting contaminated with dirt and grime.

 

Wash it out, stick a paper towel in it, use a long screw driver to wipe the last bit of crud out. Rest of the cooling system is likely just as cruddy.

 

I did wash it out and got it squeeky clean. Put fresh 50/50 antifreeze in and topped off the radiator. After five minutes sitting at idles.....
It turns to this filth.
Does this mean my whole system is extremely dirty? Whars the best plan of attack. Im buyig a new all metal 3 core radiator and a Hesco high flow water pump very soon. Will this help if I flush the system numerous times before installing the new products?

 

That sir is a blown headgasket.

 

.....'bout all u can do is flush, flush, flush and flush some more before installing the new rad. If u don't flush, flush, flush, that new rad will be crudded like the bottle. What's in the bottle is what's in the cooling system.

 

Head gasket fore sure

 

Give us a pic of what it looks like under the rad cap...

 

If it was a blown head gasket, wouldnt there be coolant in the oil and when I changed my oil last time, there was no coolant in it.
I will get a pic of underneath the rad cap in a second.

 

U can have oil in coolant or coolant in oil. Either way its not good. What does the contaminants look like?

 

Heres the pics of the cap removed.
It was very blackish brown and there were thses dark grea sand build up on the bottom of the over flow tank

 

The coolant really doesnt look too bad...
Just old.

 

If you look at my first pics at the begining of the thread, that stuf pictured was like sludge but kind od sandy in texture

 

It always looks fine under the radiator cap, but it turns to pooh in that overflow tank.

 

looks like a blown gasket or a cracked head on the exhaust side? how quick does your jeep heat up? and what does the coolant smell like?

 

Could take the rad cap off and let it r un, see if you have any bubbles.