Take a look at the water deflector on the top of that door, the adhesive may have failed. The adhesive on the door and the deflector from the factory will usually be adequate in order to re-adhere the deflector to the door if the deflector has been peeled back or removed. If additional adhesive is required, use a small amount of weatherstrip adhesive. Use a cloth reinforced tape with a strong adhesive in order to secure a piece separated at a perforation.Replace the deflector if the deflector is too badly damaged to provide a proper seal.
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