
Originally Posted by
Jonny
Replace the coolant and the thermostat right away. Previa thermostats can fail closed (happened to my very neglected one). Toyota thermostats are actually cheap and replacing it is one of the simpler things on this vehicle. Keep a close watch on temp, leaks, etc for the first few hundred miles you have it, and unless you have reason to suspect something I'd leave everything else be.
Did you get the van?