The intake gasket was supposed replaced 2 years ago on this vehicle. Could the problem be re-occurring again this quickly?
The best way to find out is to have a competent mechanic look at the car. When the gaskets were replaced were the mating surfaces checked against being warped or deformed? Maybe there was a reason the gasket failed the first time.
I just posted something about this in your other thread. You don’t even know yet what is leaking. Engines have lots of gaskets.
But either way, multiple intake manifold gasket problems on GM 6cyl cars is not uncommon.