Chevrolet: jerking

My 2000 Chevy Malibu jerks, bucks slightly on the steady uphill run,
goes away if I accelerate hard, what could be a problem?

On Sep 4, 10:29 am, ca wrote: 

Wow... I just remembered that my 2000 Malibu does the SAME EXACT
THING! I thought it was the transmission, but I had it checked and it
was fine... no idea what else it could be... fuel pump? Maybe?

Anyone have any ideas?

Much appreciated,
Keith