I'm on my 3rd cowl, Florida sun destroys these things when you don't have a garage. Remove the wiper arms, press the small clip lever and pull up. The cowl is held in by a series of clips, just pull on the cowl and it should release the clips fairly easy. There is a coupling for the hose under the cowl, disconnect at coupling and remove the cowl.Remove the washer heads from the old one along with the hose that runs underneath the cowl, they pop out easily also. Install the hose and washer heads in the new cowl. When installing the new cowl, slightly bend the right and left sides so they ease in under the a pillar molding(the right and left side windshield molding that runs from cowl to the roof), just be gentle when pushing the cowl clips in, you don't want to crack the new one! Put the wiper arms back on and you're done for the next 4 years. TAKE YOUR TIME!