Hi guys. I'm gathering info so I can flush out a 2001 LR Disco SE 2 cooling system and later, the heater block in this manner:




But it took me a while to figure out there isn't a petcock under the hood!

1) How do you guys flush your coolant?

2) I need help making sure the hose going from the radiator is the correct one to detach.





To drain and flush the cooling system, do I unclamp this hose, rather than use a (nonexistant) petcock? Thanks.

 

(And I'll add: yes, I did do a board search and read about it. I need visuals! Thanks for understanding.)

 

This video isn't the best. Is this what you guys recommend? Hope the video shows up.

 

I will try to find some pics for you. The hose you need to remove is the lower hose on the radiator(to drain), also you need to remove the two plugs on the engine block near the motor mounts. If you do not remove the block plugs, there will be a significant amount of coolant left in your engine. You and also remove the hose on the top(the one you are pointing at) to get the coolant to drain faster(it will keep from vacuum from forming in the upper coolant system). After it has drained you can use the upper hose to back flush the engine and put a water hose in the upper radiator to flush it.

 

Check this guys post out.
DII coolant flush and thermostat replacement

 

Ok thanks Joemamma. Checking it out now. Others are still welcome to post. Can't hurt to be thorough.

 

Joemamma are those plugs known as any other name, such as freeze plugs? Update: nevermind.

UPDATE: Also, are these drain plugs easy enough to access without the car on lifts? Do you all just crawl under there? I get claustrophobic just changing a Jeep's fuel filter.

 

I have not done it yet, so I don't want to mislead you. It is on my todo list and have been reading up on it myself. I just know that members who did not remove them, complained that it did not take very much coolant to refill, because of the amount left in the block. Also, greater chance of getting sediment out of the block with them opened up.

 

I think what I need is to get some non-hollow auto ramps. I wanted to get this done over this weekend but it may take some time to get the right setup. I want to do it right and not rush it and injure myself or make a mistake.

 

Good luck on it, and report back on how it went.