A humming or whining noise from the gearbox at highway speed often points to low fluid, worn bearings, or torque converter issues. Learn what to check first and whether it’s safe to keep driving.
What’s That Noise?
If your Ford Explorer VI is making a humming or whining sound from the transmission area at highway speeds, don’t ignore it. As a mechanic, I’ve seen this issue many times — and it’s usually a sign that something inside the gearbox is unhappy. The noise often changes with speed and may disappear when you coast or shift into neutral, which helps narrow down the cause.
