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2004 3.8 #1 cylinder misfire

As she was telling me about it, I told her the exact same thing that she should have asked to see the defective parts. I figured the gasket might be reusable and yes, even at $400 it is now running good and they are just happy to get the daughters car back to work, I just cant imagine a cylinder having 150psi in a cylinder with a broken valve spring.
I just thought I would share the results with you guys who have given me suggestions.
 


These are interference engines. If a valve hangs open enough, it'll hit. It sure sounds odd what they said. While you can bolt a valve cover back down without changing the gasket, you can also cause a leak. These gaskets are well known to flatten with years and if this does cause a leak, replace the valve cover grommets at the same time. They apply the pressure from the sleeved bolts in order to seal the gasket.
 
Tes, it is running fine now, and they were satisfied with the $400 price. I told her if it ever happens again to request the old parts. Ive been teaching HS automechanics for 38 yrs and I am baffled how a broken valve spring can still make 150 psi but.....
Thank you for all your help guys. I appreciate it.
 
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