(Magnetic pick-up) Inside the Distributor.
Bad Rings. Get your Rings replaced asap.
mine did the same thing i canged the plugs and two coil packs if you have an advance auto near by they will plug it in and tell you the problem if check engine lite comes on like mine was missing cylinder 4 & 6. like I said i replaced the plugs first and it was still missing and then i replaced two coil packs which are about 50.00 a piece. mine a 98 grand marquis 146000 miles on it
8 spark plugs
8 spark plugs
No
Replace the ignition control module
Remove the spark plug wires from your 2002 Mercury Grand Marquis spark plugs. Remove the spark plugs by turning them to the left with a deep well 5/8 socket. Reverse the process to install the new spark plugs.
I'm not positive about the GRAND Marquis, but the Marquis does have an external voltage regulator. Located on the passenger side wheel well. It's a slim silver box that simply plugs in. Easy replacement...........
they are located under the coil pack
Remove the coil on top of the plug, they are there.
Not really much to do. Spark plugs, air filter, oil and filter, fuel filter, and check that the ign. wires are good.
Under the coil on each cyl.