Question about Saturn L300

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My 2002 Saturn L300 has been losing coolant over the past six weeks. I had to fill the resevoir twice during that time period. The coolant level was 1/2" below the cold line and there was no coolant on the garage floor. Now the coolant level in the resevoir is halfway between the cold line and the bottom of the resevoir and there is coolant on the garage floor. Had a pressure test done about two weeks ago and no leakage was found. Everything seemed fine until today I noticed coolant on the garage floor. It appeared to be leaking from the engine on the pasenger side about 18" back from the radiator. The coolant in the resevoir was about 1/2" below the cold line and the engine was cool.

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  • gsh1950 Sep 05, 2009

    It is hard to get under the car but I can see drops of coolant on the exhaust manifold and my thinking is the reason I don't always see coolant on the garage floor is that if the manifold is hot the coolant would be getting evaporated. What do you think and thank you for your help.

  • gsh1950 Sep 05, 2009

    I'll give it a try. Thanks.



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This may be the first sign that your water pump is failing. First sign is a leak. Crawl on your back under car if you can see if you can see it coming from front of engine near a pully that would turn your water pump. There is a "weep hole" it may be driping from.

Posted on Sep 05, 2009

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  • Bill Schilz
    Bill Schilz Sep 05, 2009

    If you are seeing it on the exhaust manifold, it's definitley NOT the water pump. I would wipe down each hose and visualy inspect for pinhole or larger leaks. By wiping them down, removing grease, it may be much easier to spot a leak while the engine is running.



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Posted on Jan 02, 2017

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SOURCE: Coolant Loss

check for leakage just above the exhaust manifold on the drivers side of the engine
I was told by my saturn dealer that the leakage is at the oil cooler
coolant leaks onto manifold and is boiled away so it will not show on the floor of the garage.

Posted on Aug 17, 2009

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