Intermittent low beam headlamp fix
#1
Intermittent low beam headlamp fix
Im writing this in case anyone runs into the same issue i was having.
Since i bought my blazer ive had issues with my low beam headlights working about 90% of the time but randomly cutting out. The high-beams work fine and the parking lights and turn signals work fine. It was isolated to both of the low beams. I checked all of the normal stuff fuses, relays, headlamp switch, multi function switch. All of those were working properly. I even traced every ground i could find to make sure they were good. When i turned the headlamp switch on i could even feel the low beam relay clicking so i figured the switch and power wires were good.
In a last ditch effort before tracing individual wires I just turned the low beams on and started wiggling different wire harnesses around. when i moved the rear harness on the under hood fuse block my low beam suddenly came on. Then i wiggled it again and they turned off. Viola i finally found the source.
I unbolted the fuse block and removed the big rear plug. Then i removed the plastic cover to expose all of the pins. Pin #5 was pulled slightly out of the plug and a little crispy. So i repaired the pin and soldered the wire to ensure good contact. When i reinstalled everything my low beams came right on and worked just like they should.
I just hope this can help save someone else from chasing their tail in the future.
Since i bought my blazer ive had issues with my low beam headlights working about 90% of the time but randomly cutting out. The high-beams work fine and the parking lights and turn signals work fine. It was isolated to both of the low beams. I checked all of the normal stuff fuses, relays, headlamp switch, multi function switch. All of those were working properly. I even traced every ground i could find to make sure they were good. When i turned the headlamp switch on i could even feel the low beam relay clicking so i figured the switch and power wires were good.
In a last ditch effort before tracing individual wires I just turned the low beams on and started wiggling different wire harnesses around. when i moved the rear harness on the under hood fuse block my low beam suddenly came on. Then i wiggled it again and they turned off. Viola i finally found the source.
I unbolted the fuse block and removed the big rear plug. Then i removed the plastic cover to expose all of the pins. Pin #5 was pulled slightly out of the plug and a little crispy. So i repaired the pin and soldered the wire to ensure good contact. When i reinstalled everything my low beams came right on and worked just like they should.
I just hope this can help save someone else from chasing their tail in the future.
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