Hey y’all, so the driver’s side headlight on my '08 Expedition just went out on the way to my buddy’s house. Swapped in a new LED bulb, worked for a bit, but then poof… out again. Checked the fuses, and they seem fine. Anyone have a clue what’s going on? This is driving me nuts…
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I think I had a similar issue with my '07, and it turned out that the connector was loose and wasn’t making full contact. Try jiggling the wires a bit and see if that makes a difference.
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Maybe your LEDs are overheating. Some cheaper ones don’t have great cooling and just shut off after getting too hot.
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Not to sound obvious, but did you check the ground wire? I had this exact issue, and it was just a bad ground. Made a solid connection, and it’s been good ever since.
Huh, I haven’t looked at the ground wire yet. I’ll check that tomorrow. Appreciate the tip.
If it’s not the wiring, you might have a faulty ballast if you’re using an LED conversion kit. Mine fried after a few months.
I’d be checking the relay too. I know you said fuses are good, but relays can act up and cut power intermittently. Swap it with another to see if that helps. Let me know how it goes.
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I presume it could be a short somewhere. Maybe try wiggling the wires while the headlight’s on to see if it cuts out. If it does, it’s likely a wiring issue.