2000 tdi shaking

my tdi will shake from the engine while im driving. it more like rocks like im lifting the gas pedal up and down repetedly. its a noying cause it wont do it for a week or so then just suddenly do it, or do it real bad then just stop. and it dosent matter if its cold or not. help!

my tdi will shake from the engine while im driving. it more like rocks like im lifting the gas pedal up and down repetedly. its a noying cause it wont do it for a week or so then just suddenly do it, or do it real bad then just stop. and it dosent matter if its cold or not. help!

Ckeck out this write up.
http://tdiclub.com/TDIFAQ/TDiFAQ-8.html#o