Bad Jasper engine.
My in-laws bought my wife a new crate 351W from Jasper about a year ago as a Christmas or birthday gift for her F250. I was angry on one hand because that totally shot the Cummins swap I was planning. But on the other, it was a lot less work for me because they paid a shop to do the work. Well, ever since it as been one problem after another. I was against getting a new engine and not doing anything with the original 1996 electronics. So, when we started having problems I was chasing electrical issues. The truck always ran rough and for the life of me I could not find the problem. I never thought to look for an internal problem with the engine. Hey, it is a new engine so there is no reason to check the compression, right? The other night I was at a friends shop and asked him to check it out. In five minutes he found two, yes TWO dead cylinders. Oh, and it has been in the shop several times for other install related issues. So now, we see what Jasper is going to do about it. If they make it right and give us a rental while the truck is down, then I am good with them.