Clicking or knocking sound

Hello,

I have come here in hopes to get some help regarding my car.

I was out of town for two weeks and when I got home I got in my car and started her up. it was a bit of a colder day, and I immediately noticed a strange squeaking sound, I made a video of the initial sound here:

[https://m.youtube.com/watch?feature=youtu.be&v=mhZpt28WFI8][1]


I continued to let the car warm up and after five minutes of being warm the squeaking went away and turned to a clicking type sound. I put in drive to take it around the block and the engine lost power when trying to leave a stop sign. Immediately I got a flashing check engine light. code p0300 ( multiple cylinder misfire).

I turned the engine off and waited a while and went to turn it back on, still hear clicking but no more check engine light. I can note the sound is consistent and does not get better or worse based on being warmed up or not and it matches the RPM's of the engine.

It sounds to be coming from the top of the engine in the middle. I’m not a mechanic so I can’t be sure. I tried to change the oil and filter, afterward I drove it around for ten minutes and the tapping sound went away and returned to a squeak for ten seconds and immediately came back. No codes anymore, no lights on,nothing.

I have uploaded a video of the clicking noise it is making, if someone would be kind enough to take a listen and let me know what they think it may be, it would be greatly appreciated.

[https://m.youtube.com/watch?v=kJzl8XNBebY][2]

Side note: The car has a small oil leak appearing to come from around the oil filter, which is tight and not coming from that. Smells like it’s burning oil as well but hard to tell as there is a small leak, one drip every few seconds. I don’t have a lot of history of the car as I bought it used.


Thanks!


[1]: https://m.youtube.com/watch?feature=youtu.be&v=mhZpt28WFI8
[2]: https://m.youtube.com/watch?v=kJzl8XNBebY