Replace spark plugs
You have to remove the coil packs, check out a video in Utube
youtube...and i thought he / she meant where to buy....hello..
If you can not find the plugs then you have no business replacing them. Get some help with it.
Looking for a Used Grand Marquis in your area?
CarGurus has 5 nationwide Grand Marquis listings and the tools to find you a great deal.
Search Mercury Grand Marquis Questions
Mercury Grand Marquis Experts
Related Models For Sale