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I see that now. Wow, that’s really not good. I guess it’s good it seized before that came loose and came out of the block.

So, I have an update with photos. It turns out it was not a misfire and top end problem it was a bottom end problem, bad bearings. It spun two of the rod bearings, one so badly that it essentially welded itself to the crank and that’s what locked it up. This is the same mode of failure as the...

Quick update, the dealership is communicating with Cadillac who have asked for more data from the computer and have had the dealership pull the intake but nothing further. The service department is waiting to hear what Cadillac wants them to do next. He did tell me that it wouldn’t turnover...

I don’t know who the engine builder was but I will look when I get the chance. I wouldn’t blame them. If it turns out like the BMW then it was a bad batch of parts the killed the engine. It’s up on the rack at the dealer now and they tell me they hope to know more next week. I’m even more bummed...

I am new to this forum, I just purchased my CT5 a few months ago and only have 3128 miles on it but the engine has failed in what I believe is the exact same way that the engine failed in the Car and Driver long term test car. I was religious about the 1500 mile break in and I haven’t ever used...