Originally Posted by HulkJR

well one thing is that Lifters dont make a "knocking" noise. you can try a few things, take the drive belt off see if it still make the noise... get a stethocope and get the vehicle to make the noise then start cancelling cylinders so you can isolate it to a specific cylinder. (to me it doesnt sound like valvetrain but not too sure) pull the rocker arm covers and see if you've got a broken spring/rocker arm. or try doing a compression test

Originally Posted by RangerXtreme

Ok, stupid question. What the f is a valve train? Sorry, I know engines, but never heard that word.

Originally Posted by GSUhooligan

Kick that mechanic in the nuts.