Your 2005 Grand Marquis has distributorless ignition. Each spark plug has an ignition coil on it (coil on plug). There is no distributor. The coils are controlled by the engine ECU. If you are talking about the electrical distribution harness, that is probably the wiring that exits the underhood fusebox that is near the battery on the passenger side.
2005 Mercury Grand Marquis LS Premium
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Car Customization
I just broke my car key to my mercury grand marquis and i was wondering if that model has a chip in the key?
2005 Mercury Grand Marquis GS
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Car Customization
How can I get my grand marquis up to about 400hp
2006 Mercury Grand Marquis LS Ultimate
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Car Customization
Will a set of 2014 mustang rims fit on a 2003 grand Marquis gs?
2003 Mercury Grand Marquis GS
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Car Customization
Hi have a stock 2000 grand Marquis and I wanna add more power and just upgrade my engine where should I start
2000 Mercury Grand Marquis GS
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Car Customization
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