My 1998 Olds LSS with 57K miles is in the shop with an expensive repair.
It seems there is a plastic fitting in the intake manifold that develops a pinhole leak. The leak allows all the coolant to be sucked out of the cooling system and burned in the cylinders. Fouling the plugs and, of course, causing the engine to overheat.
My question is, " have you heard of this?"
Second, the service manager at the Pontiac dealer who is working on my car said he has seen quite a few of these. If it is a wide spread problem why isn't GM getting it corrected before they fail?
1998 Olds LSS