Yellow sandy substance in radiator

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Jan 20, 2014 | 12:13 PM

#21

mr. sparco

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From: Sunny Beaches

Quote:

Originally Posted by mr. sparco

Silicate drop out, the coolants been in the system for too long and is "spent." Do a search on it, turns into yellow crust over time. Usually kills the water pump if left unchanged for too long.

Quote:

Originally Posted by zetosan

Hey man did you figure out what the yellow substances were? cause my thermostat gave up and i was changing and did a coolant flush and i also saw the yellow stuffs in the radiator through the cap. you think its anything to be worried about?