my jeeps motor used to make a bad tapping noise.
http://www.youtube.com/watch?v=LkelChkwjWo
I did some diagnostics and pulled some codes. after thinking about it and doing some research i pulled both valve covers off and to my big surprise i found a rocker missing on my 6th cylinder exhaust valve. the rocker was there, just not where is was supposed to be
. btw huge pain in booty to pull valve cover off left side. wiring harness and rad hooses in the way.i managed to get to rocker back into place and put everything back together. i also replaced the plugs and wiped the memory clean of codes. no more check engine light and it sounds better then ever.
if this has happened to anyone else let me know and if this happens to u, i can answere any question about it and tell u how i did it through the steps.
heres some prove pictures.
