Just as a follow-up to this, the date on the plenum is 99. It is the original one. I am going to try & relax &enjoy my car but also aquire the parts needed to do the job. Thanks

That'* a good idea. Mine on my 1997 LeSabre (so same engine and intake in a slightly-lighter body) went out around 140,000.

In order to keep tabs on the condition of the intake, I have two suggestions. #1 keep a check on the inside of your oil filler cap. It should be clean and free of any moisture or sludge. #2 Use a sharpie pen to mark your coolant level on the plastic reservoir. If you observe coolant loss, this could indicate problems with your intake or LIM gaskets. Hope this helps.

Good ideas. Thanks.

I would add: do this when the engine is cool, record the outside temperature at the time the mark is made, and when checking, keep the current temperature history in mind. If it is 70 degrees at 9AM when you mark it you might get a different reading at 70 degrees at 4PM. At 9AM the temperature just rose to 70 to much of the coolant might be colder and at 4PM it would probably be the other way around.

That having been said, once coolant loss starts, it is probably already too late unless you catch it at the moment the leak starts.