SCjeep

i Change my antifreeze about three months ago and it was rusty looking water. So i Replace the thermostat and put a new heater core in cause old one was leaking. put new water pump on. Pulled out the drain plugs from the side of the block took off the upper radi hose. Pulled out the bottom on the let the water hose flush the block out for about five mins then put new drain plug on the side of the block. put new thermostat in. left the hose's off the rad cover the bottom outlet and let the hose flush out the rad. and filled it all back up and it was green. so i was done now three months later i pull off the cap and its rusty again. im lost. Help

BlueXJ

Somewhere in your Jeeps life people have used tap water with some iron in it. It may take several flushes to get that out and you may never if the water you are using for your flush has a lot of iron in it.

SCjeep

no i use nothing but 50/50 advance brand i dont add water at all. i spent about three hours yesterday flushing it and flushing out the block and rad. so i filled it back up to green and going to take it out today and see how it does then check it. i was thinkin the rad is ate up from iron or from someone useing to much antifreeze