Okay so I have had some serious problems with my 05 Ford Mustang 4.0 V6. It all started when I had head gasket replaced, after I got my car back it was missing on cylinder 5. I got the plugs, wires, and coil pack checked and they were all good. The guy that did my gasket said that he thought it was the rings, but it wasn't smoking AT ALL or using oil.. It was missing on 5, but it would go in and out it would miss bad and sometimes run as smooth as a sewing machine. But anyways I got advice that it was a botched head gasket job or the intake valve so I took everything off and sure enough there was lack smoke on my gasket where it was seeping through causing the miss "I'm thinking" but I replaced the intake valve for cylinder 5 anyways. So after I did all that and got it back together, I crunk it up and there was a loud rattling noise coming from timing chain cover area so I removed all of that to identify the problem and sure enough there was a bracket or something that had broke off so I'm in the process of changing that. When I removed my oil pan I could 5 pieces of metal and I have NO clue what they are or go to and that's why I'm on here to figure that out, any suggestions? I have a picture of everything I have now!!!



These are the pieces I found in my oil pan

 

That the craziest pieces of metal I've ever seen come out of a oil pan. I have no idea what that is.

 

that is your primary timing chain tensioner, it has exploded. seeing as he had to take that all apart to change your head gaskets i would take it back and have him fix it. or take it to someone who can ACTUALLY fix it correctly and make the origninal shop pay the bill