Having problems with your 1998 GMC Sierra ?
My driver side wiper is lose, how do i tighten it up
Remove small black plastic cap from bottom of wiper arm, under the cap is a nut. Tighten it, make sure your wiper is in the correct position, or you will have to loosen and adjust it.
Repair Help & Product Troubleshooting for 1998 GMC Sierra
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