66 rivera headlight problem

[Guest 66riviboy]

Only my driver side headlight works on low but when I switch to high beam they all work. I put a new dimmer switch on and still have problem.  Any suggestions

[joe_padavano]

Replace the headlight. The low beam bulb has TWO separate filaments, one for low beam and one for high beam. The low beam filament is burned out.

 

Note that this is a good example of why you should look at the wiring  diagram BEFORE wasting money replacing good parts. There is only one low beam wire coming out of the summer switch. If ANY lights worked on low beam, the switch is good.