Chevrolet Repair: 2000 2.2l cavileir, rocker arms, intake manifold

Question
i have a 2000 chevy cavileir and it has a tick in the intake and i have been told that it was a leaking internal air pump but what ever it may be i still cant find any info on or about it so i thought i would ask some one.
       thank you for your time          wesley

Answer
HI WESLEY,THE INTAKE MANIFOLD SHOULD NOT TICK EVER. HOWEVER NEXT TO THE INTAKE IS THE CYLINDER HEAD WHICH HAS VALVES,ROCKER ARMS AND PUSHRODS..I THINK THE TICK IS IN THIS AREA..UNLESS IT IS AN EXHUAST NOISE..THERE IS NO SUCH THING AS A INTERNAL AIR PUMP. THERE IS A SECONDARY AIR PUMP FOR THE EMISSION SIDE OF THINGS,THIS WILL NOT TICK..I THINK THE NOISE YOU HEAR IS MORE OF A CLICKING SOUND FROM THE LIFTERS OR ROCKER ARMS. TRY TO PINPOINT WHERE THIS NOISE IS FROM. USE A LONG BAR TO YOUR EAR WITH THE BAR ON THE ENGINE WHERE THE NOISE IS,THIS MAY HELP FIND THE NOISE. LET ME KNOW IF YOU NEED MORE HELP WITH THIS. COULD YOU ALSO PLEASE RATE THIS ANSWER,AS YOU LEAVE THIS SITE, IT WILL HELP ME OUT. THANKS TOM.