I bought a '92 Previa last week, and even though I checked the coolant reservoir, which was low, but not empty the tailpipe, etc, it turns out that it's got a bad head gasket. Two days ago, it started running rough on start up, and I then saw the dreaded white smoke from the tailpipe. I looked in the coolant reservoir, and it was pretty much empty after only having driven the van about 100 miles, so I filled it to the full line. I didn't drive it yesterday, and when I went to start it this morning, it wouldn't turn over. I turned the key, and it made kind of a "clank" sound.
Am I experiencing hydro lock? Any other ideas? Thanks!