How do you change left front turning signal on 91 sonoma?

To change the left front turn signal on a 1991 GMC Sonoma, start by opening the hood and locating the turn signal assembly. Remove the retaining screws or clips securing the assembly, then carefully pull it out. Disconnect the electrical connector and replace the burnt-out bulb with a new one, ensuring it is properly seated. Reassemble the assembly by reconnecting it and securing it back in place.