The Mitsubishi 3.0 V6 in this Grand Voyager is mated to a durable, low-tech Chrysler 3-speed automatic transmission.
The Mitsubishi motor is known for premature valve failure, and I think we might be moving down that path; one valve is tapping just a bit.
The transmission that people seem to have trouble with is the electronic 4-speed. If you own one of those, be very, very sure that any mechanic that so much as glances in its direction knows of ATF-Plus formulated transmission fluids, and how they differ from Dexron and Mercon. Most will put Dexron in there on a transmission flush, an act that Chrysler has implicitly authorized over the years. Don't let it happen. It's designed for ATF-Plus.
Overall, it's well-designed, spacious, rattle-free except for the squeak. And that will be easy enough to fix on a warmer day than today.