Thought it might be my flex plate bolts at first so I checked them and theyre tight as can be. Could it be my felx plate is cracked or does it sound like my rods are knocking?
It happened suddenly after I went over a speed bump coming into my place. I pulled the plugs one by one but the knock never got and quieter so I cant tell which cylinder its in if it is a rod.
http://www.youtube.com/watch?v=0vMt6...ature=youtu.be

 

I think it might be more of a rod instead of a piston, since the noise is lower down in the engine. Not too sure though, I'm not an engine expert. I just know when something isn't right with it and then I troubleshoot.

 

Sounds just like mine! Is yours loudest when you first start it and almost goes away when it's hot? Mine does and it's been driving me nuts since I bought it. Good luck and let us know if you figure it out!

 

Mine's got some piston slap when cold, but 236k will do that. haha.

 

Just wondered if piston slap is what i have too, Ive got 258k miles

 

this is wat a loose flexplate sounds like for comparisson

 

urs might be rod knock by the sound of it

 

mines pretty loud the whole time. doesnt have any effect on the engine temp and how loud it is. Im about to remove the oil pan, when I do is there something I should look for?

 

this is it being reved up
http://www.youtube.com/watch?v=J3JhU...ature=youtu.be

 

Piston skirts and push rods.

 

will it be obvious to tell if somethings wrong with them?

 

They'll be laying in the oil pan...

 

well dang, guess ill check it out

 

Flex plate sound like someone dropped a jumbo marble into a coffee can and started swinging it around. It's very annoying. I know because I have it.

Engine internals are usually a little more robust, and follow a distinct audio pattern.

A flexplate is like someone laying under your XJ shaking a spray paint can with a huge smug grin on their face.

 

Broken piston skirt takes the cake. Found a good bit in my oil pan. Any write ups to how to replace a piston?