Loud bang, then engine died
 

Happy Thanksgiving Everyone!

I need a bit of advice. I have a 2003 Boxster S manual with 123k miles that I purchased a month ago. The IMS bearing was replaced (IMS Retrofit) a few years ago by the previous owner. The was running great. I was on the highway last night driving when all of a sudden I hear/feel a loud bang and lose engine power. I immediately pull over and shut the car down. I did try starting it once, but heard a crunching sound so I shut the engine down. I did notice a small puddle of oil underneath the car as it was being put on the tow truck. I just dropped the oil pan and see no oil in the metal, but there is water and coolant mixed. I've researched a bit and it looks like it may be a cracked head? There is a oil leak that looks to be coming from the top part of the engine. What are the next steps to troubleshoot this? Do I pull the plugs and see if any of them are wet? Do I then try to turn the engine by the crankshaft bolt. I don't think it's the IMS, but not sure what else it could be besides a cracked head. Any ideas?

Thank you!

Nevermind, I got a better look at the sump. Definitely, engine parts in the sump. Thank you!

well it sounds like your next step is going to be to drop the engine.

Ideas here..... Link

None cheap or easy.