I replaced all my bulbs and now all lights work except left turning signal. What

Hello, check that left rear signal bulb, but also check the left front. One of them is likely burned out, at least one of the filaments (two filaments, one for brake, one for signal).

IF brake lights are working - then the bulb and circuit are ok - it’s the same exact circuit ! The other circuit is for PARKING LIGHT element in that same bulb. IF BOTH the front and rear signal light bulbs are illuminating but not flashing - replace failing signal FLASHER. ASSUMING you installed original equipment type bulbs - no so called up-grades (?)