Question about 1992 Mercury Grand Marquis

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Starting the car

Hi,
I charged the battery for about 90 minutes. When I turn the key, I get a humming sound. The battery and alternator are about 3 years old. I am able to start the car by shorting across the solenoid terminals. Any suggestions out there. Thanks!

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  • jc1941 Oct 10, 2008

    I bought the car in 1998 and the sparkplugs have not been changed since I've owned the car. My mechanic never suggested the sparkplug idea in the past, because I have had this problem occur before. Maybe the "tuneup" as we called it in the old days is in order here. Thanks!

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  • 149 Answers

You can typically bring your car into Sears which they have an electronic testing device that will allow you to hook up the car. normally they do this for free a few years ago. I'm not sure if they changed it. It will show you if the power is even passing through.

Most of the time you might need to clean off the metal clips that hook onto your car battery since it can build up gunk and doesnt allow the electricity to pass through. Otherwise you might need to change the spark plug which has been a simple fix to what you are also explaining.

Are you also hearing a ticking or clicking noise but it's not turning over? Has it gradually done this over time but now not turning on at all? Then there is a high change you might need a new spark plug.

Let us know how it goes!

Posted on Oct 10, 2008

  • Cambryn Reichert
    Cambryn Reichert Oct 11, 2008

    No problem--good luck with things! I hope that solves the problem as a simple cheap fix and not something more expensive or extensive.



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