1998 OLDSMOBILE 88 User Comment / Complaint

Gradually you will see a depletion of the anti-freeze from the holding reservoir. this is could be a sign that the intake manifold is beginning to leak anti-freeze (just a little) into the engine. sooner or later when the erosion is large enough then a plume of white smoke will come out of the exhaust and you have no choice but to pull over and call the tow truck. i have replaced the engine intake manifold twice on my 1998 olds 88 due to degrading of the interior wall where the anti-freeze flows back into the engine. both times the total cost of the repair (including plugs, wires, new manifold, labor) was around $1,200. on the last manifold gm had established adding a piece of metal where the anti-freeze was eroding the "space age plastic" intake manifold. based on this, gm knows this is an engineering problem, but they will not take ownership of it and or pay for it.