Question about 1984 Mercury Grand Marquis

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I have a 3.34 amp drain while the grand marquis is turned off.. resulting in brand new dead batteries.... need to know how to find the drain. please and thank you.

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The easiest way to start is to pull each fuse one at a time and see if the draw goes away. if it doesn't than reinstall that fuse and pull the next. Repeat this process until the draw goes away. Once you know what fuse stops the draw you can figure out what that fuse powers up and move on to systematically disconnecting each one of those components until the draw goes away.

Before I do anything with a draw I like to check things like under hood lights, glove box lights, and trunk lights to make sure they are turning of when they are supposed to.

When you figure out what fuse stops the draw post a reply and I'll be more than happy to assist you on the components that fuse protects.

Posted on Sep 30, 2010

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Posted on Jan 02, 2017

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2000 Mecury Grand Marquis, sounds like it will turn over but doesn't. Turned over once but wont stay started


Can not nor should you jump a dead battery

You need a good battery or fully charge yours
& then check fuel pressure with a gauge at fuel
rail port

Dec 28, 2012 | 2000 Mercury Grand Marquis

2 Answers

I was told the alternator was bad and drained the battery. I changed both and the battery was dead the next day. 1998 mercury grand marquis


assuming the repair was done correctly the you need to clean/repair the battery connections this should fix ya
hope this helps.

Jul 15, 2010 | 1998 Mercury Grand Marquis

1 Answer

HI, I HAVE A 99 GRAND MARQUIS WITH LIGHTING PROBLEMS THAT DRAINS BATTERY.AT FIRST THE INTERIOR LIGHTS CAME ON AT ANY TIME.I REMOVED ALL INTERIOR BULBS.NOW I AM SHOWING A SHORT IN FUSE 11 IN HI-AMP FUSE...


the LCM is under the dash just above the steering column. It is $400. Get one on ebay only for your year and model. others won't work.

pleae rate

SECTION 419-10: Multifunction Electronic Control Modules 1999 Crown Victoria/Grand Marquis Workshop Manual
REMOVAL AND INSTALLATION Module —Lighting Control (LCM) Removal
  1. sxa~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Prior to removal of module, it is necessary to upload module configuration information to New Generation STAR (NGS) Tester. This information needs to be downloaded into the new module once installed. For additional information; refer to Section 418-01 .
    sxa~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Electronic modules are sensitive to electrical charges. If exposed to these charges, damage may result.
    Disconnect the battery ground cable.
  1. Remove the LH instrument panel lower insulator.
    1. Remove the pin-type retainers.
    1. Disconnect the courtesy lamp.
    1. Remove the LH instrument panel insulator.
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  1. Position the LCM aside.
    1. Remove the screws.
    1. Release the locking tab.
    1. Position the LCM aside.
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  1. Remove the LCM.
    1. Disconnect the electrical connectors.
    1. Remove the LCM.

Nov 19, 2009 | 1999 Mercury Grand Marquis

2 Answers

Electric


yes i've checked the fuses :(,but they are all good...

Sep 21, 2008 | 2006 Mercury Grand Marquis

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