Question about 1997 Saturn SL

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1999 Saturn SL light green slim/sludge found in water

I suspect oil is leaking into the water...we've changed the oil a couple times now, and have not been able to detect any water in the oil....but for over a month or so now, we've noticed a thick slim/sludge in the water resevoir. I've taken it off and cleaned it, and flushed as much as I could out of the hoses/radiator twice now. Is this indicative of a cracked block/head? Wasn't quite sure, since we've not been able to see any water in the oil/changes. The car isn't blowing smoke, or leaking oil/water. Any ideas on how to narrow it down/find exactly where the problem is?

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  • lbs1 Jul 31, 2008

    car has over 200k miles on it.

  • lbs1 Jul 31, 2008

    hmm..ok...cause car runs just fine otherwise...can't detect any compression leaks, or external seepage from the gasket area.

  • 1Rick1 Aug 21, 2008

    I have a 1993 Saturn SOHC 1.9 that is doing the same thing.

    I've already had the head gasket changed, and the mechanic said he didn't see anything wrong with it, cleaned it up and put it back togrther, after about 20 miles the oil was all back in the water resivor. asked another mechanic and he said that if the head is cracked that he wouldn't have seen anything wrong.

    So I ordered a rebuilt head and had him install it, while I observed. By the hayne's book he did everything right. 18 miles and it is doing the same thing.

    I had a water pump installed before this all started and I am now trying to see if there is anything wrong in that area.

    Any help will be greatly appreciated.

    Also there is a hole in the block where the water pump mounts that seems to go diagnal toward the drivers area. The gasket has provisions for the hole so its suppose to be there, I'm wondering what its for and where its going?




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I have a 1997 saturn 1.9sohc and I noticed a brown sludge seeping out of the water res , but no water on oil dipstick. Washed out the resivior with a hose running for 10 min and it got alot of the sludge out, but the next day I checked the fluid and there is a quarter inch of oil on top of the water. it is creamy brownish white . its not overheating or causeing any problems yet but I am worried and broke what shold I do?

Posted on Aug 22, 2008

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  • Saturn Master
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If you are sure it is oil then yes you most likely have a blown head gasket.

Posted on Jul 31, 2008

  • yadayada
    yadayada Jul 31, 2008

    The leak will be internal, have a shop see if the radiator has combustion gases leaking into it.



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