2004 Grand Am 3.4 . Coolant is disappering mysteriously. I can see a few drips here and there but no where near the amount needed to loose the amount i am loosing. NO COOLANT IN OIL thank God. I am baffled. From what I am seeing intake gaskets are suspect. Like I said though, no coolant in oil. I can see coolant under the upper intake sometimes. Thanks in advance for any help!