cooling sysytem flush
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Mountain Pass
Joined: Mar 2012
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cooling sysytem flush
Well when the nice weather returns, I plan on doing a cooling system flush on my 04 6.0 liter, ive never done this before on this truck and im seeing a lot of suggestion's about using FOMOCO VC-9 cleaner. Just wondering whats the difference with it? Why not use Prestone Flush? Thanks for the input, Im still learning about my first Diesel.
Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 242
From: Saratoga Springs,UT
If its not plugged I wouldn't use any cleaners a couple water rinse and put the coolant in it
don't pull that thermostat cause if theres any garbage in it it will kick it all up and plug that cooler what don't matter if the OC is already plugged you want to kick the junk up and flush it out
Iv seen guys with your situation go to town cleaning and end up plugging that oil cooler
don't pull that thermostat cause if theres any garbage in it it will kick it all up and plug that cooler what don't matter if the OC is already plugged you want to kick the junk up and flush it out
Iv seen guys with your situation go to town cleaning and end up plugging that oil cooler
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Mountain Pass
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Joined: Oct 2013
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The Fumoto valves in the engine block are great !! It makes life so easy when it gets done again.... the one by the starter is a TON of fun,,, but it can be done 
I think Benny is correct in saying no cleaner if your oil cooler is good.... Just Flush Flush Flush..... Are you going to The CAT coolant?
I think Benny is correct in saying no cleaner if your oil cooler is good.... Just Flush Flush Flush..... Are you going to The CAT coolant?
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