Remove tire....look inside wheel well...bolts along body side & at top along with one underneath car...remove them & the onlt thing holding it to fender is weatherstripping.
While you're at it...remove the 3 small nuts along the bottom of the fender & wash the entire area out....then, before putting the 3 little bolts back i (along bottom of fender), put a small washer between the fender & body so there's a tiny gap.....you can't keep stuff out of there so making a tiny crack will allow it to get out.