If the front left turn lamp works when the switch is in hazard mode, but not for left turn, the problem is in the switch. As long as it burns brighter than the park lamp (brightens when hazard lights come on) then the lamp assembly is fine. The problem is in the switch.
If the right turn signals work both front and back, and only the rear works for the left, yet the left front works in hazard, the only change is in the position of the switch inside.
The switch you installed should have a schematic showing which wire is for the front left turn signal. I would test that wire coming out of the switch at the switch. If it works on hazard and does not for left turn, the problem is in the switch.
Did you say you took the switch apart?
Last edited by Roy Rodgers; 01/21/2013 11:09 PM.