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Coolant Flush 200 1993

posted by  saltydogs on  Thu Jul 23 04:24 CST 2009
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last visit: Sat Mar 16 07:11 CST 2013
[RELATED]

Lost all coolant the other day, found the cracked hose and am replacing.
I figure I might as well replace all the hoses, do a flush and pressure test, but I have a concern.
After removing the hoses, I noticed the insides looked like what my arteries probably look like. There was a coating of white "scum"(plaque?) all through each, and the inside of the coolant reservoir is scum coated as well, which I can wipe off with the tip of my finger.
Is that scum also coating the radiator, and all of the coolant passages throughout the engine and its various cavities? And if I do a flush, will some of that scum loosen and become lodged, causing a blockage?
What is the best way to clean/flush the cooling system? Any there any chemical additives that can be run through?

Have a good day and I look forward to your as always helpful replies

93 240 220k
95 850 165k
80 240 200k+





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