I think the engine ran low on oil, rod knock to me.

 

Thanks for all the responses, I only ran the engine to take the video.

Sounds like it would be best to pull the motor. Hopefully I can get on that soon, I will do my best to keep you updated.

Just out of curiosity, assuming it is a scuffed bore. What would cause that?

 

Am I wrong or did the OP's vid sound way faster than the confirmed scuffed bore vid. I realize that the OP's was cold and Idling a little high but still... sure sounds like the head to me.

 

Well i think the next step will be to do a leak down test and use a bore scope to try and figure out what wrong before a full tear down.

 

Ok I finally figured out what was wrong with my car. Like Billman250 said it was in fact cylinder #4 with a scuffed bore. I finally got my hands on a bore scope that worked and it didnt take long to figure out what was wrong.

Once we move I will start working on my car that and I need to save up for the repair. Mostly for Billman250 and Soul Coughing, what could or is the probably reason for that kind of damage?

 

You have an MY00... do you have the upgraded oil jet bolts?

 

I personally have not done anything with that, I can check to see if the previous owner did. Was it a recall item or some type or TSB?

 

Not sure. Maybe some info in this thread?
https://www.s2ki.com/forums/index.php?showt...ht=oil%2520bolt

 

I looked into it there are only 2 recalls on my car and they were both performed and there are also no TSB's that deal with that engine problem at all.

Thanks for the link I hadnt really heard about that bonjo bolt thing before.

 

my celica gts has a similar noise (valve tap) but on the 2zz it's considered normal...