Auto Parts and Repairs
Spark Plugs and Wires
Mercury Grand Marquis
Ford Expedition XLT

If a 1984 Grand Marquis has no power to the coil what do you check after you have replaced coil plugs wires rotor and cap?

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Wiki User
2015-07-15 19:09:38
2015-07-15 19:09:38

(Magnetic pick-up) Inside the Distributor.

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Bad Rings. Get your Rings replaced asap.

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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

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The plugs are under the coil. Just remove the coil and there they are.

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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.

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they are located under the coil pack

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Remove the coil on top of the plug, they are there.

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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...........

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Not really much to do. Spark plugs, air filter, oil and filter, fuel filter, and check that the ign. wires are good.

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C.O.P. ( coil on plug ) They are under the coil's.

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Check the Vehicle Emission Control Information ( VECI ) decal located in the front of the engine compartment ( it will show the type of spark plugs to use and the spark plug gap )

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Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of your engine compartment ( it will show the type of spark plugs used and the spark plug gap )

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You do not need to remove the fuel rail to remove the spark plugs.

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Clean the battery terminals, posts, and check the battery for electrolyte compound. Duzzy_06@yahoo.com did you make sure to connect your hot wire back to the distributor cap If you had no spark before,,,,check the map sensor.

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look on the very top of the motor and you will see a long rail them are the spark injectors for your spark plugs. pull them injectors out and you will see your spark plugs.

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If it has them they are located on the side of the block. They are actually casting plugs used to remove sand during casting, and have nothing to do with protection from freezing.

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The original plugs should be good for around 100,000 miles ( 160,000 ) kms. Take it from there.

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My husband took the car to run it under the machine and it was the spark plungs needed to be replaced. which only cost $4.00 so we had the spark plugs all replaced which was a total of $8.00. I just want to say that I hope this will help out someone else in the future.

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there is a coil on each one. remove the coil and there is the plug.

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Each spark plug has a coil on the top. Just remove the coil.

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no they are not in the way at all but the air box intake needs to be removed to get to the left side spark plugs


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