The engine locked up on me while I was driving to the auto store to get a compression check tool in hopes of confirming the obvious.

Although the gauge did not read that the van was overheating it must have as within a very short distance it began to run rough, like it was not running on all cylinders, so I pulled over an it died on me. would not turn over.

The engine is locked up, so I am gonna try to sell it "as is" and let someone else part it out or swap the engines. Last time I will buy a GMC product.

Cheers everyone. Still have my wife & kids, so not the end of the world.