Knocking sound 2017 Ford Ranger 2.2 SUPERCAB 4×4
I bought a BRAND NEW 2017 Ford RANGER 2.2 SUPERCAB 4×4 in December last year 2017.
I noticed for the first time 8th of April 2018, while doing a road trip. A knocking sound coming from the back left of the cab. It was extremely windy on that trip.
I then became aware of the noise and have no identified that every time there is a strong wind, blowing on the left hand side of the car there is a knocking noise. It can be soft but if the wind is really pumping then it is very noticeable and loud.
I recently did a 4×4 trip 2 weeks ago and also then noticed that something was seriously loose and rattling like crazy going over certain terrain. Not after that 4×4 trip, there is a noise constantly in the back, quite soft and the knocking noise has got worse and I hear it much more frequently and with much lighter wind.
I have taken it back to Ford and they are unaware of what it may be ?
So, bear in mind my car is the supercab, so I have no back seats.
What could be in the car, that would get blown by the wind to cause a knocking sound ?
I would assume that wind cannot get into the cabin or doors ?
So the only thing I have to go on, is when wind blows there is a knocking sound and when doing 4×4 something rattles like crazy.
Any out the box ideas are very welcome. This sound is driving me crazy