2002 Mercury Grand Marquis "replace spark plug" Questions

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Question about Mercury Grand Marquis

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...replace the coil and spark plug and what should the spark plug be gapped at? Thank You I got code PO 305 on a 2002 Mercury Grand Marquis, what is the spark plug wire part called This will have a ...

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...ones. You will avoid further headaches this way. Hope this helps. The spark plugs have been replaced with the correct ...

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Question about Mercury Grand Marquis

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Replace the fuel filter. it does have spark plug wires, spark plugs, and a coil pack You may have heard him wrong or he was not thinking straight no you don't this year make and model has coil on plug

Question about Mercury Grand Marquis

1 Answer

...spark plug and the plug wire. Then have someone turn the engine over and watch to see of there is a spark in the tester. You can do this test for every plug. If none of the plugs spark, then the ...

Question about Mercury Grand Marquis

2 Answers

...the solution to my problem was to replace the spark plug wires. You are dealing with a high energy ignition that pumps a lot KV though those cables and if they are oem most likely they are

Question about Mercury Grand Marquis

1 Answer

...a bunch of wires and connections. I appreciate your help. Remove the Ignition Coils,one connector at a time Spark-Plugs under them,do 1, then replace the coil Need a 5" Plug socket. like a Snap-On ...

Question about Mercury Grand Marquis

1 Answer

...next time your replace them and if you use Platinum Spark Plugs, your good for 100.000 miles before they need to be changed if your engine is running 100% on emissions. Good luck and hope this

Question about Mercury Grand Marquis

1 Answer

...now the spark plug for the #1 cylinder. the car is still running very rough like it is missing. is there a chance all the plugs fouled out? Yes replace your spark plugs first check your wires ...

Question about Mercury Grand Marquis

1 Answer

...replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if equipped). Otherwise, check the coil packs. Sometimes the ...

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