I have a 2004 Durango with a 5.7. I recently did a tune up and found water under the coil. On another forum site someone was say to open the hood and spray water on the windshield. When I did water was pouring right on the engine. After looking closer, the seal on the cowl is in need of repair. Aging on the other site they were saying it cost $100 to fix. Aside from running a bead of sealant along the cowl and windshield, what have others tried?