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1997 buick lesabre is there coolant running through the intake on this model?

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  • jessethewren May 06, 2010

    Thanks man i appreciate your help....



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I think your describing the upper intake manifold. It sounds like water is getting in through your inlet for air for the engine. Perhaps the air is humid, and was allowed to cool, releasing water. dry out your intake, air filter box, and connecting hoses, and see if they get wet again.

Are you sure it's coolant?? Look closely at the large hole underneath near the throttle body! If it looks like it is melted than replace the whole intake, upper as well as the lower intake. The lower intake has a tube coming out of it which is the EGR passage. The heat in this tube melts the plastic intake. The new lower intake has a smaller size tube to prevent the melting.

I read somewhere that Buick/GM took steps to correct the potential coolant loss problem by using a metal intake rather than plastic so the potential melting problem. The melting of the intake was addressed in 1999, but they have new coolant leak concenrs with the 2000 to 2003 which is covered by a recall. No recall for pre 2000 models.

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Posted on May 06, 2010


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