Common Issues of Ford Expedition Fog Lights and the Reasons behind Them
Road visibility is tough when you are driving through thick fog. Even your sturdy Ford Expedition will find it hard to drive in that condition without the help of a reliable set of fog lights. Fog lights are one type of auxiliary lighting that allows drivers to see and be seen clearly even with the presence of fog. These lighting gears are strategically angled downward, so the light beam can reduce glare and illuminate the road. In reality, your Ford Expedition fog lights are rarely being used, but this does not mean that they are free from harm and other technical dilemmas. Here are some of the usual problems encountered by most Ford Expedition owners with their fog lights and the usual reasons behind these issues:
Moisture inside the fog light housing
Since your Ford Expedition fog lights are your vehicle's frontline soldiers against fog, moisture tends to accumulate inside the fog lights' housing. This happens when water droplets from the air seep through fog light covers as your vehicle passes through a cloud of thick fog. This should not actually happen since your fog light covers are supposed to be water-tight, but there are some cases when one or both fog light housings loosen over time. To solve this issue, you can buy a new set of fog light housing. But if the budget is tight, you may just opt to secure the edges of your fog light covers with a reliable sealant.
Busted fog light bulbs
Although your fog lights are seldom used, the fog light bulbs are still prone to premature wear and failure. Several Ford Expedition owners complain about their vehicles' fog lights not turning on. There are many possible reasons for this, and one of them is moisture inside the housing. When water gets inside the housing while the fog lights are on, there is a huge chance that the bulbs will explode. Aside from a busted light bulb, you will also end up with a shattered fog light cover. It is also possible that the bulbs are just loosely attached to the sockets. Sometimes, the bumps you hit while driving can cause the light assemblies' bulbs to get detached from their sockets. You can try tightening the bulbs in place. But if nothing happens, you may want to check for a blown-up fuse.
Other troubleshooting tips
In some cases, the Ford Expedition fog lights are working, but they tend to dim or flicker now and again. If this happens to you, you may want to check the electrical connections and wiring harness of your fog lights. This may be caused by interruptions in the flow of power from the source to your fog lamps. Other reasons include weak light bulbs, short circuit in the wirings, a defective ballast, or a faulty fog light switch.