One of my friends has a 96 LT1 Auto and she is getting a message that the coolant is low. I took a look at it and could not find anywhere it was leaking, all the hoses and water pump look fine. The car has 89k on it. I checked the reservoir and it was at the mark it should be. Would this be a sensor issue and is it prone to fail or could there be more going on? Any help would be appreciated.

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Nothing irrgular at all, no overheating, just the message it appearing.

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Thats what I was guessing too. Damn I had not really ever checked out a LT1, so much more stuff under the hood, than my L98. She has a sweet car though, black with red leather, and in very good shape. She has owned it since new and it literally has never had any kind of problem.

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Snowolf is right. Having air in the system can cause a low coolant warning and a bad sensor can do this also.