Forum Discussion
Old-Biscuit
Nov 21, 2017Explorer III
Sodium Chromate is the anti-rust inhibitor used in the coolant solution.....Ammonia, Water, Sodium Chromate and Hydrogen Gas
When cooling unit has a leak the Sodium Chromate is that yellow residue.
DEAD!
Nothing to do with the circuit board.

When cooling unit has a leak the Sodium Chromate is that yellow residue.
DEAD!
Nothing to do with the circuit board.

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