My car is 2004 Chevolet mimi-van with gm 3.4l v6 engine, mileage only 90,000 kM. Engineer said the exact same issue as you said "the engine had an issue with coolant intake gasket leaking which could cause engine seize if don't repair and cause coolant leaking into engine".
Could you let me a smaller workshop that only charged half price than from the big dealer? thank you.