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-   -   Loud bang, then engine died (http://986forum.com/forums/performance-technical-chat/76737-loud-bang-then-engine-died.html)

spdrcr21 11-28-2019 12:22 PM

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!

spdrcr21 11-28-2019 03:28 PM

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

Fiddlebog 11-28-2019 03:55 PM

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

mikefocke 11-28-2019 04:44 PM

Ideas here..... Link

None cheap or easy.

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