89 toyota celica st automatic stumbles when accelerating

[oldgoat3]

Hi, I wonder if any of you guys could help me in figuring out what could it be that is afflicting my son's car.
It iddles reasonable good (for it's age at 130K. miles) The problem at hand is that,when driving it (taking off from stopped) it initially stumbles but resumes normally after 2 to 3 seconds. It buckles whe stepping on the gas (under load only-not with tranny in park position).
I'm about to change the gas filter,spark plus.
I'll appreciate your help,
Thank you,
Oldgoat3

[92celicafreak]

Like your doing do a tune up first.

NGK Plugs
Wires
Oil Change
Oil Filter.

The works try that out and let us know how it goes afterwards.