Select 1998 GM Vehicles (most common) Upper Plenum and Intake Manifold Problem!!!

I have a '98 GP GT with bad UPPER PLENUM AND INTAKE MANIFOLD. My anti-freeze leaked (flooded) the intake manifold causing smoke from exhausts!!! Very common esp. 1998 GM's. Re: plastic Plenum melts and burns! Cost me $400 incl. labor! Beware 1998 GT's, Regals, Olds etc. Just a heads up! No recall either because it's not a safety issue! yeah, right--just poor design!!!!! Why would anyone put plastic near heat?!

there is acually lots of plastic parts near high heat areas I think there is a issue with the gaskets and probally a bad mix when they molded the intake. after 10/1/98 it was suppose to be fixed but we all know GM!