Muck in radiator over flow tank.

JJhirsch

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1994 Mustang GT Only bolt on mods to the motor.

So i changed my oil yesterday and while i was waiting for the oil to drain i check my cooling system. First i took a look at the radiator cap and i sow some dark green muck stuck to some parts of the cap. I then looked at the over flow and coolant looked clear enough but when i took the coolant low sensor out i sow some stuff on the sensor too. So today i did a flush and put in some old school Green coolant and when i took the over flow tank out i found 1 inch of Brown, gray and dark green muck at the bottom almost like some very fine sand/mud so i rinsed it all out.

Is this normal? could it be from not cleaning the overflow tank out for a long time? I have changed the fluid last about 3 years ago.


1. Since i have owned the car for 6 years i have had the Old school green but just last year i changed the top radiator hose and bought some PEAK Global (gold/yellow) to top it off Maybe 1/10th of a bottle because the bottle says for all make and models and i can add to any kind of coolant.

2. 3 years ago i put a new radiator and water pump in from Oriley's.

3. One time that i did a flush (3 years ago) i used tap water because i never knew about using distilled but i dont think that would cause a big reaction to cause muck.

Thanks JJ
 

DeepList

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Are you sure the previous owner didn't put any of that radiator stop leak shit in there?
 

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