strange sounds coming from motor

[brian89]

so driving home from school today and the motor started making a ticking/squeeking noise, it was not constant and it was more noticable when i was stopped, sounded like something was in a cylinder just rattling around, it stopped for maybe 5 minutes and then turned into a knocking noise, like a cylinder wasnt firing, then it stopped for a while and now the ticking/squeaking noise is back, i havent let it cool all the way down and start it up and run it yet but it doesnt run any different than i think it should, please help before it turns into something really bad

 

[907DAVE]

Pull the belt and run it when its at its worst, this will eliminate any accessory that may be causing your noise.

 

[brian89]

it started when the trans was at about 190* but it got all the way down to 130* before it started knocking, i was thinking it was coming from there but i really dont know, it sounds kinda like its right in front but its loud and i am so clueless on where its coming from, anybody know how to upload a video from a phone?

 

[Gary]

Pull the belt and run it when its at its worst, this will eliminate any accessory that may be causing your noise.

^^^ Do this first ^^^