How to flush out the radiator after oil is in it

jeff113 · #1 05-19-2011, 05:17 PM

My truck is blowing oil in the radiator. I'm getting it fixed tomarrow. But how do you do a flush that will clean the oil residue out? Thanks

**yj junker** · #2 05-19-2011, 07:59 PM

water and dish soap ,run to temp and drain then flush with water till all the suds are gone

jeff113 · #3 05-19-2011, 09:29 PM

so i would use something like joy detergent

Island Diesel · #4 05-20-2011, 12:22 AM

Use liquid dish washer soap, it doesn't foam.

jeff113 · #5 05-20-2011, 01:30 PM

so I would use something like Joy or Dawn

ranger518 · #6 05-20-2011, 09:32 PM

Yea I have heard of people using mean green and restor radaror flush. You should think of replacing all your radiator hoses my buddy is a master Powerstroke mechanic and he says if you don't that the hoses will break down and fail due to the oil. But I don't know.

bismic1 · #7 05-21-2011, 09:19 PM

cascade works well - low suds.

I have also heard of using the simple green.

Hawg Hunter · #8 05-25-2011, 09:59 PM

Add some Calgon to soften the water. Detergent works just as well with less suds.

Good luck.

BigBird389 · #9 05-30-2011, 02:18 PM

I have done all those things , and I still cant get the sludge out. Any ideas?

bismic1 · #10 05-30-2011, 05:22 PM

Simple Green HD is what a Tech I know uses. It is not easy! His recommendation is to replace all rubber components in the coolant system as well as the radiator and the heater core after flushing as much out as possible.

Rastus · #11 05-31-2011, 03:41 PM

Pretty much the only way to go.

http://www.fleetguard.com/pdfs/produ...LI33024-GB.pdf

PowerstrokeTech87 · #12 06-05-2011, 11:00 PM

Originally Posted by ranger518

Yea I have heard of people using mean green and restor radaror flush. You should think of replacing all your radiator hoses my buddy is a master Powerstroke mechanic and he says if you don't that the hoses will break down and fail due to the oil. But I don't know.

your buddy would be absolutley correct.

we have chemicals at the dealership that flush everything out, flush everything first and then replace the hoses. I assume you popped an oil cooler.

redneckpipeliner · #13 06-05-2011, 11:02 PM

I used muriatic acid, available at any pool store or home depot. I used 50% mixture. Cascade is safer and easier, just do it 2 or 3 times, use atleast 1/2 a big bottle at a time.

PowerstrokeTech87 · #14 06-05-2011, 11:04 PM

the other thing ive done, is put concentrated easy off (yes the oven cleaner) in with distilled water. IF the sludge isnt breaking down and isnt going away, you probably have bigger issues. Make sure the degas bottle and cap get replaced as well, i replace both either due to popped oil cooler or bad head gaskets causing fuel in coolant or bad injector cups causing fuel in the coolant.

lostintn · #15 06-24-2011, 10:32 AM

Use Shout the laundry detergent be sure the eng reaches operating temp drain while hot rinse and repeat this should remove all the sludge

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