So i have had this tick for a while i have not worried about it to much because i don't have a 2003. i have a 2002 but now the noise is getting on my nerves any ideas? its not constant its intermittent. Like some days it doesn't do it some days it does. while its hot it will sometimes and sometimes when its cold and when it warms up it goes away.

This is what it sounds like please note this is not my truck but it sounds exactly the same.

 

P0301 cyl 1 miss fire
p0133 o2 sensor CKT slow response (sensor 1 bank 1)

Those are the only codes i have