Not that I should be saying this to you your going through enough already and you have my sympathies but all this head gasket talk is really making me want to sell mine and be done with it and maybe these threads to on this topic, it's enough to depress you to the point everytime I start my car now I worry about some **** head gasket situation when I shouldn't be thinking about this at all .. I'm wondering what the real percentage is of these failures like 1 in 2-3000?? I'm really liking the Carnival I'll think I'll get that soon as much as I love the Pacifica, this is rediculous!!
Your concern is understandable. I worry, too, as I have two of the darn things! Even though they are each covered by a Mopar extended warranty, my plan is to have the dealer flush/fill the cooling system in wife's '18 Pacifica at 50k miles or 5 years (it currently has 47k miles and will be 5 years old on May 1). I'm not sold that the newer long-life coolants are really living up to their hype, and might be losing some of their corrosion protection properties sooner than the 120k-150k miles or 10 years they claim. This is just my gut feeling. I have no evidence whatsoever to support this concern other than the number of head gasket failures reported on this forum and in FaceBook.
One would think that Chrysler is well aware of the problem, knows what causes it, knows how to fix it so it doesn't happen again, and knows what changes to make to the production line and/or maintenance schedule. The question is: will they actually do anything about it? If so, when? If not, then yeah, it's only a matter of time before owners such as me decide to dump the Stellantis brand once and for all. That would be a shame as Pacificas are nice vehicles.