3.8 L-leaking intake gaskets-cold this cause lack of heat in cabin ?

The 3800 is not the engine prone to lower intake gasket leaks, the 3100 and

The 3800 also suffers from corrosion problems. You may need the whole cooling system cleaned and this will cause loss of cabin heat and will also cause engine overheating...

Aftermarket:

Redesigned and much better, about $200.00 at most part stores.

I hope this helps?

Refinish King