which fuse is the wiper fuse
Here is the loction of the fuse box and it should be marked..http://www.carcarekiosk.com/video/1 999_Mercury_Grand_Marquis_LS_4.6L_V8/fuse _interior/replace
Your owner's manual will tell you. If you do not have an owner's manual have a friend watch your wipers as you pull out and replace each fuse. You will eventually find it.
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