I have a 1998 Buick centry w 97k And the engine stalls for no reason? on 1998 Buick Century

I recently had the spark plugs and wires replaced, the serpentine belt replaced and breaks done. Now all of a sudden the car quits as soon as I start it, I have to give it gas and stay on it for a min before I can even get Into gear. Anyone experienced similar problem or have suggestions?

Asked by for the 1998 Buick Century