power mirrors.I can use it to go up,down,and to the right but NOT left

it's 23 years old and Firestone touched it! i don't know which is worse.

Drop the big chain repair 'store' facade and find a reputable independent auto repair 'shop'! .. Since it's the most likely cause of the problem and the easiest to access for testing .. The mirror directional switch is first suspect that should be investigated to help determine what the actual culprit is .. IF the switch is 'sending' power to the mirror then a broken wire of failed mirror assembly comes next ...... Also, once the desired mirror setting is achieved (can be done manually) forget about it .. Switch been broke in my Chevy Blazer for several years and I could easily fix it BUT I rarely, if ever need to change the mirror position .. However if I do - I do it by moving the mirror glass with my hand .. Good luck and happy holidays!