Question about 1996 Pontiac Grand Prix
My son kept getting the coolant light on along with the check engine light. He bought some coolant/antifreeze and poured it in. It turned thick and goooey, and yellow. Then it overheated when the weather got cold. Who can tell me what happened and how to fix this mess ? I don't even know what kind he bought. The bottle was Prestone.
The car came with GM dexcool in it and was mixed with a noncompatable antifreeze. You need to flush to entire cooling system including the heater core. Any Certified shop can handle this job and recycle the used fluid. As for the Ck engine light only a scan can tell you if it is related or not.
Posted on Dec 18, 2008
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