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Brown Sludge In Coolant Overflow
Brown Sludge In Coolant Overflow. After a little while i noticed a thin brown sludge oily looking layer in my engine coolant reservoir. I noticed the coolant was starting to become brownish.

I pulled off both hoses and flushed the radiator until it ran clean. I would get a silt like sludge at the bottom of the overflow, brown or brown/green coolant, and the same silt/mud settling like a paste on the radiator filler neck. Yes you probably have some iron after years running the same coolant but that is not at all waxy.
I Immediately Think The Head Gasket And Check The Engine Oil But Looks Normal.
2005 sv6 & alfa romeo 156 v6. I haven't checked it in awhile :huh: Again, smells like coolant but much darker and thicker.
If The Brown Sludge Isn’t Removed, It Might Lead To The Formation Of An Unusable Mixture Of Coolants And A Lack Of Frequent Draining.
The metal is due to not changing the coolant often enough. That much new sludge with new antifreeze seems strange. Often times, sludge in the radiator is an indicator of a leaking cylinder head gasket, which can lead.
A Radiator Cap Will Allow Air Into The Cooling System If There Is No.
The car was not yet overheating. Specs call for 22.6 quarts total fill (5.65 gallons). My car has 100000 miles.
In That Amount Of Time, The Coolant Tank Ended Up A Lot Cleaner Than When I Started.
This video will cover the main reasons behind brown sludge and iron oxide debris in your radiator and how to remove it successfully. Dip a sponge or cloth in coolant and clean the inside of the tank. Your coolant can turn light brown if you have a blown head gasket or a head gasket broken down by rust.
Radiator Was Very Slow To Refill, Once Started To Do A Flush On The Whole System, Water Being Added Would Drain From Radiator Drain Valve, But It Seems Somewhere In Radiator Could Be Blocked As Well.
I found the same kind of brown sludge (looks just like mud) in both my over flow bottle and in the radiator under the radiator. I started seeing this brown sludge with red coolant. I flushed the radiator and refilled it, but it's still there and really bothers me.
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