What is this buzzing sound
I’m losing my mind. I’ve been to 5 mechanics and a master electrician (it’ll make sense in a bit) and no one knows .
2018 ford explorer XLT 4WD
Recently changed an alternator and battery.
Originally, the shop put an aftermarket alternator and realized after test driving after the repair that my car requires OEM alternator. Left the car with them for a week and came back to it being changed out and fixed.
Ever since, my car has been making this sound.
The only thing constant about the sound is it seems to only come on when driving above 35/40 kms/h.
I’ve tried turning AC and heat on/off.
Display on/off
Lights on/off
Radio on/off
EVERYTHING ON/off
It always comes on.
Per request of the mechanics:
- I’ve tired remove negative for some time, came back
- Tried removing positive and negative and clamping together, came back