I have a flapping like noise going on in my engine when I rev it up, then let it drop, i was told it was in the timing belt because my tensioner is going out, is this something that should be fixed immediately? it doesnt happen every time either, i dont know all the details, so if anyone can throw in their 2cents i'd appreciate it..

 

omg. stop driving it, stop reving it, dont turn it on. get rid of the damn POS auto tensioner. get h23 tensioner sooo much easier to work with. damn easy to install and youll thank god you did it. if you need part #'s pm me.

 

He's right. Tow it to your mechanic. The belt is probably ripping and your hearing it hit the cover. Be prepared to rebuild your head if it breaks.