Drivers side headlight is very dim on low beam and goes out when on high beam

The low beam lamp glows very dimly when the low beams are on but the lights go out completely on high. I have replaced both bulbs and checked the fuses. Does anyone have any suggestions? The passenger side lights both work.

This type of behavior is almost always a ground issue. Follow the brown ground wire from lamp to the frame bolt or make a ground probe from a wire connected to the - terminal of the battery. Use a 14 ga house wire and stick it in the connector. MAKE SURE YOU PROBE THE BROWN WIRE ONLY! The low beam should light up bright if it a grounding issue.

What kind of bulbs have you been using?

It sounds like plastic around the terminals (of the headlight connector) has been melted, causing a loose connection

I agree with Reference. It sounds like a bad ground, or maybe a bad power connection, but it usually turns out to be the ground.

I am using standard H 1 bulbs. Will check the tommorrow. Thanks