[BakerFX4]

this water and all is pure brown and gritty and stuff. Flat NASTY! what is the best way to flush this. Ive heard you can buy radiator flush. Worth it? give me some steps. Thanks!!

[MustangMatt96GT]

1. Empty it.
2. Fill it with water.
3. Run the car til its warm.
4. Drain it again.
5. Fill up agian with water.
6. Drain after warm again.

Do this until the water being drained comes out clean...

Then put in your 50/50 coolant mix...

[BakerFX4]

aight cool.

[MustangMatt96GT]

BTW it can take up to 8 times of just filling it with water. Its a long process, but this way will help clean the block too...

[quiksilver225]

unless your an earth friendly hippy i would just pull it over a drain and flush it.
remove the petcock from the bottom of the rad on the passenger side and the engine block drain plugs(if you want to, i usually dont). Fill it up and run your cleaner through it, if your gonna flush it u should buy a coolant system cleaner to run through. Then just let a hose run into the overflow and let the car run until nothing but pure clean water is coming out of the drainage. The hose trick is a nice way to avoid taking the block plugs out. It allows u to just run enough water through it that it cleans the whole system anyways. Dont buy 50/50 because ur getting ripped off. Instead of paying for half water get pure coolant and mix it yourself. Run it again until at normal operating temp, check all hoses and gaskets for small leaks and call it a day.

[KhaosGT]

im a construction mechanic and when we flush coolant systems we drain the coolant and fill it back with water and put about half a cup of the powder type dishwashing soap(cascade) in the system and let it run then drain it then run it with pure water then drain it and replace the coolant...i am acutally going to do my coolant system this weekend...ill let you know how it goes...and im topping mine off with royal purple purple ice :-)

[HMUSN]

You mean your top radiator hose? see if it has a hole or the clamp came off.

[Trick Tuners]

Originally Posted by quiksilver225 unless your an earth friendly hippy i would just pull it over a drain and flush it. remove the petcock from the bottom of the rad on the passenger side and the engine block drain plugs(if you want to, i usually dont). Fill it up and run your cleaner through it, if your gonna flush it u should buy a coolant system cleaner to run through. Then just let a hose run into the overflow and let the car run until nothing but pure clean water is coming out of the drainage. The hose trick is a nice way to avoid taking the block plugs out. It allows u to just run enough water through it that it cleans the whole system anyways. Dont buy 50/50 because ur getting ripped off. Instead of paying for half water get pure coolant and mix it yourself. Run it again until at normal operating temp, check all hoses and gaskets for small leaks and call it a day.

I do nearly the same thing. I collect the first drain of the radiator, then keep adding water with the engine running and the valve open at the bottom until it looks like clear water.

[00redgt]

used to i would take the hose off the heater coil,an drain the radiator an put the water hose into the hose on the heater coil an flush it also.both hose on the coil also 1 at a time.and it also pushing it threw ur heads and stuff.then fill ur radiator start the car. let the thermostat open an after it runs for ahile,flush it again threw the radiator

[ajm]

Id go with what mustangmatt said thats what I usually do, just drain what I can, refill with water, run it a bit, and repeat until I get 100% water. For cleaning out the brown gunk in the reservoir if you have any you can use the radiator flush stuff. I usually just pull the reservior off and fill it with 1/3 the bottle of flush and water and repeat until I use all the flush that way its a bit more concentrated in there to break down all that junk vs that little container of flush in 14qts of water. then drain and refill to whatever mix you prefer. Each to their own but im running 70% water 30% zerex original.

I just read the rest of the posts and what joe said would be quite a bit more time saving. Never though about doing it that way.

[BakerFX4]

WOW... this was an old thread. F! LOL!
I was like.... WTF, i didnt post that.

[ajm]

wow haha, i didnt even look at the dates i just seen it at the top and seen all the replies were today.