Originally Posted by cata123
I want all new coolant in new radiator, so how would i do it?
When I had the shop do mine they left the old one in, drained all of the old antifreeze out, added a little Dawn to the old radiator, and completely flushed out the system using water.
I asked the shop why a little liquid soap, they told me it was an old trick to get as much of the darn oil out of the block as possible.
Once they flushed it all out, we added all new hoses a new water pump, new thermostat and a new radiator.
My ZJ had 125,000 on all of this stuff, so it was kind of a preventative maintenance step on my part. I travel a lot with my Jeep.