I just got a new 1500 quad cab and couldn't be happier. The only strange thing I've noticed is a strange pulsing pressure/sound when either or both of the rear windows are rolled down. If I'm going around 50mph and drop the window(s), I can hear and feel a pulsing sound that is probably at a rate of 2-3 times a second. It's very constant and disappears as I get to slower speeds. I'm thinking it is a wind pulse/cab pressurization thing, due to the aerodynamics of the truck. Has anyone else noticed this or have any ideas as to what it may be? Thanks.

 

yeah, I have a 04 quad cab and it does the same thing. I guess you can chalk it up to the design.

 

umm pretty much any 4 door vehicle will do that if you only put the rear windows down and drive over 50mph, at least every car ive ever in and someone cracked the rear window on the highway. Put a rear down and crack a front and you dont have the noise.

 

Try opening your rear sliding window.

 

It's called wind buffetting, and can be fixed by changing one of the following variables:

- Roll rear window(s) up slightly
- Roll front window(s) down slightly
- Reduce/increase speed
- Drive in space, where there is no atmosphere

Every vehicle is susceptible to the effects of wind buffetting.

 

There should be a section in your owner's manual that addresses this issue.

 

I thought it did, I'm gonna look when I get back in the truck. I'm curious now

 

Thanks for your guys' input. I was hoping that it was just the wind. If I get a chance to try the no atmosphere thing, I'll let you know how it goes. I'll bet the truck would fly due to the lack of gravity and wind drag, but I'm pretty sure the O2 sensor alone would cause the vehicle to not run at all.

 

i get that to in my quad cab. its weird but i got used to it.