You know those plastic grille-looking cowls under the windshield wiper arms on Nissan pickups and Pathfinder? They look like this:
http://www.ebay.com/itm/371010035013?it ... 20&vxp=mtr
You have to get the cowls off to get the metal body part off between the hood and the windshield, for example to get at the wiper linkage.
Does anyone know if the little plastic push-snap fasteners that hold the cowls on are supposed to be removable? In my experience trying to get them off (or even on!) without damaging them is usually impossible. Then they're impossible to replace. So I now have 3 sets of cowls from having to get into the wiper linkage and damaging the snap fasteners. The latest set has new snaps but I'd prefer not to go through this again.
Is there a trick to getting them on and off? If not, can the snaps be bought without the cowls? Or is there some other kind of fastener that would hold the cowls on?