Why my 98 lumina jerks while driving than stop jerking?

The jerking in your 98 Lumina while driving could be due to several issues, such as a faulty spark plug, a dirty fuel injector, or a failing transmission. These problems can cause irregular power delivery or hesitation in acceleration. Additionally, issues with the fuel system or ignition components might also contribute to this behavior. It's advisable to have a mechanic diagnose the problem to ensure proper repairs.