My 1998 buick lesabre custom is running hot and smoking
It's most likely going to be the intake manifold gaskets. These engines are notorious for this. Have the upper and lower intake manifold gaskets replaced. Then have the shop change the oil twice after the repair. This will remove the coolant contamination from the crankcase and prevent a spun bearing. They'll have to inspect the upper intake for cracks as well. It's made out of plastic and prone to cracking. HTH. -Jim
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