headlights on 1999 ford f250 superduty truck 5.4 engine

Asked by Mar 06, 2015 at 01:58 PM about the 1999 Ford F-250 Super Duty XL Extended Cab LB

Question type: Maintenance & Repair

the headlights on my 1999 ford f250 superduty 2wd 5.4 engine truck dont work all  lights
work fine i have changed the switch and the fuses i know about  can anybody tell me what
else to try

2 Answers

265

It could the bulbs or the sockets. It could be what I like to call the "Christmas Tree Effect". This is where if one bulb goes out, it sends the whole system haywire. Although, that is more than likely not the case with your truck. If you don't keep it clean or let it sit for a while in a field, you could get mice or other rodents that will eat the electrical,and since the wires for the headlights are upfront and in the open, they are an easy target; they tend to go for that first.

i have checked all the wires i didnt see any evidence of what you are talking about

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