thumping noise when window open

Hello,
I just joined the forum. I have wanted a tacoma for years and finally sold my 89 chevy s10. I now have a 2011 tacoma trd double cab. I have been adding things to it slowly, running boards, roof rails, tints, etc. I just noticed when a window is slightly open you get a constant thudding noise from the pressure. I am not sure if my roof rails created this pressure effect or if it always existed. Any idea howto get rid of it, besides opening all the windows or lowering that one more? Will a window deflector solve the issue? If so, any recommendation of which one? I heard in channel is the better choice. thanks for your help.

 

It always existed. Same problem here but don't think the window deflectors will solve the problem. Put those on my Acura TL and still had it. Could be wrong on this vehicle though.

 

It's nature, you can't fight it. Open the rear sliding window or crack one of the rear windows to let the air out.

 

Bummer. Autoanything has wind deflectors and one of them advertise " These low-profile deflectors let you open your windows without the ear-splitting wind noise." If it doesn't solve the issue, I wouldn't add them to my truck. Would have been nice to solve the problem. Appreciate the replies.