My car stalls and hesitates through the whole acceleration and it don't stop on 1999 Chevrolet Tracker

ive changed spark plugs coil packs and the fuel filter...I've had a cpl garages look at it and they say that the car is misfiring on all 4 cylinders randomly I'm pullin out what's left of my hair any ideas

Asked by for the 1999 Chevrolet Tracker
if ck eng light is on please post codes so we can advise.