Coolant flush after oil cooler replace?
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Mountain Pass
Joined: Apr 2012
Posts: 215
Likes: 1
From: Charlotte, NC
Coolant flush after oil cooler replace?
I just had my oil cooler and EGR cooler replaced, and I'm now consider doing a coolant flush with Restore/Restore+ to ensure the coolant system is clean. I know this might be backwards and perhaps should have done the flush first, but schedule and such did not allow. I do have a coolant filter. Thoughts?
Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 25
From: Middle Tn.
I personally would not. As you stated the flush should have been first. Now you would risk breaking stuff loose and plugging the new cooler. If you now have the proper coolant and ratio I would call it good and keep an eye on the filter.
Post Fiend
Joined: Feb 2011
Posts: 26,410
Likes: 6
From: Ft. Lauderdale, FL
X2, don't flush now.
Lead Driver
Joined: Dec 2006
Posts: 6,496
Likes: 94
From: So. Jersey
You missed the boat. You should of done a flush before changing the cooler. If you do a flush now expect to change your cooler again. All the junk is going to go straight to your new cooler clogging it up.
Fleet Mechanic
Joined: Sep 2013
Posts: 1,303
Likes: 84
If I were to do anything it would be pull the block drain plugs and let that just run out then drain the radiator and add a coolant filter. You could just pour distilled water thru until is clear from the block and radiator drains. But as mentioned I would not do any kind of chemical our pressurized flush.
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