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Re: sludge in antifreeze overflow tank 98-99 malibu
Quote:
Originally Posted by barbnden
I have a 98 and a 99 malibu that has brown thick sludge in the antifreeze overflow tank. I have always had a problem w/ the antifreeze evaporating and I would have to replace it every 1 1/2 months..Had the dexcool taken out of it and the gaskets on engine replaced because of dexcool rotting problems..Use the green stuff now but it is all brown in the tank and the cap to the overflow is sludgy also..What is my problem before I bring it to shop where it will cost $$$. The low fluid light is on and won't go off even after I refill tank...Should I be putting it someplace else...Was told to replace it thru overflow tank! HELP!!!
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The brown crap could be the old coolant (dexcool) and the older green coolant mixing. Maybe the system was not flushed properly. You may also have a leak. Somewhere some how. Second, the light could be from the level sensor sticking. You are going to have to take the resevoir off and clean it.
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