My 2000 jetta pulls to the right under hard acceleration but drive strait at speed

SOURCE: 2000 VW Jetta V5 accelerator/idling problem

these cars are fitted with a fly by wire accelerator pedal that is controlled electronically by the cars computer it is possible that there is a computer problem or the throttle body ( air intake system )or accelerator pedal is playing up.
it is highly possible that the car is doing exactly what you say it is i recommend you take it back to VW and demand that they take a proper look at it you might have to leve it with them for a couple of days and get a service advisor to drive it home so as they can see the problem ocure.
regardles the cars computer should of thrown a code declaring a fault in the system witch should give the tecs some were to start looking.

good luck with this problem if you have any outher questions let me no

SOURCE: winding noise and vibration when driving on front right tire

you could have more than one problem the vibration accelrating maybe an inner cv joint ,if you just had the tires replace and an aligment done they should have checked the front end for worn out ball joint and tierods but the wheel bearing may not have any movment but can still make noise

SOURCE: under acceleration the car pulls to the left but

A front wheel drive car pulls with the same wheel it steers with. So if any part of the suspension,or steering linkage is warn , torque from acceleration will pull the drive wheel to the side. After 15 years on the road : my guess is warn-out tie-rod-ends. See a mechanic.It won't be cheap, but a hole-lot easyier !

Testimonial: "Thanks for the info. I will check the offset in the ends. i belive the spec is .015""

SOURCE: 1992 jetta stalls under acceleration

Catylitic convertor going bad or clogged up

SOURCE: 2003 Kia Sorento:

you know they had a ton of recalls on that particular tranny a few years back and i would suggest taking to a shop and let them run a pressure check i think you will find one of the internal clutch packs/ drums is weak which means the tranny needs to be torn down and fixed