[KilWerBzz]

Does the Promaster have air curtains? The front has air scoops. http://www.promasterforum.com/forum/attachment.php?attachmentid=14897&stc=1&d=1443022301

And the wheel wells have vents, but on my van only the passenger side are working vents the drivers side they are solid. Can some body check their vents as to being real or solid. This pic looks like a tire but is of the front wheel well. Thanks http://www.promasterforum.com/forum/attachment.php?attachmentid=14905&stc=1&d=1443022301

 

[Zyzzyx]

Air curtains? Huh?

 

[KilWerBzz]

The easy explain is here Ford is not the only one.
http://www.greencarreports.com/news/1099158_2015-ford-f-150-air-curtain-cuts-aerodynamic-drag

Air curtains? Huh?

 

[jimmbomb]

Mine is a 2014 136" gasser.
The drivers side wheel well air curtian has only the top louver open out of the 5. BUT.. also at the very top of it, just above the top of the tire is another, that is also open.
The passenger side has all 5 open.
And here i always thought the 'scoops' under the headlights were foot holds to step up when i fuss with the windshield.