Question about 2000 Mercury Grand Marquis

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Lights on 2000 Mercury Grand marquis will suddenly go out while

When driving in the rain, the lights on my 2000 mercury Grand Marquis will suddenly go out. The motor continues running, but there are no lights anywhere on the car. Dashboard and all. I wiggle the blinker switch some and do a lot of praying and then they will flicker and then come back on. So far, it has not lasted very long; but it is scary when it happens. Anyone have any ideas? Thanks.

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  • Mercury Master
  • 4,369 Answers

Please rate as solved if this fixes your issue. Let me know too.

I believe you have a bad LCM, Lighting Control Module. Or, the connectors to it have corrosion maybe. The module is above the brake pedal. It is very expensive. You can buy one at discount from tascafordparts.com. Sometimes, ebay has one too. But, you need one for your year car. Match the part number on your LCM.

Here's how to get it out.

SECTION 419-10: Multifunction Electronic Control Modules 2000 Crown Victoria/Grand Marquis Workshop Manual
REMOVAL AND INSTALLATION Module —Lighting Control (LCM) Removal

  1. Lights on 2000 Mercury Grand marquis will suddenly - sya~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Prior to removal of module, it is necessary to upload module configuration information to a scan tool. This information needs to be downloaded into the new module once installed. For additional information; refer to Section 418-01 . (I replaced one without doing any programming, so I don't think this applies).

  1. sya~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.
  1. Position the LCM aside.
    1. Remove the screws.
    1. Release the locking tab.
    1. Position the LCM aside.
  1. Remove the LCM.
    1. Disconnect the electrical connectors.
    1. ReLights on 2000 Mercury Grand marquis will suddenly - 9a18f6a.gifM.

9a18f6a.gif

Posted on Jun 03, 2009

6 Suggested Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: rear shocks on a 1996 Mercury Grand Marquis

Raise car under frame then put jack under axle before removing the shock.
Can use locking pliers to hold the shaft from turning (may have to cut away dust boots). Top nuts are accessed and can be seen from the wheel wells or from the gap between the trunk and mount frame (can't see nut from this angle). Take care with fuel lines near the driver side nut.
Preventing shafts from turning on new shocks will be tough. Make sure you have a proper tool to fit top of shaft with enough room between top of shaft and trunk (gap decreases as the nut is tightened) so the tool can be removed.

Posted on Mar 30, 2009

  • 328 Answers

SOURCE: mercury grand marquis

it is on the fender near the battery and is also referred to as the starter solenoid (if you follow the large wire from the positive terminal of the battery at the other end will be your relay/solenoid)
hope this helps!

Posted on Feb 28, 2009

  • 1 Answer

SOURCE: Can someone post a fuse diagram for 1991 mercury grand marquis ?

they don't have diagram that i've seen, my roommate has this car and on page 172 of owners manual it gives the number of what fuse does what,, .. which corresponds to the number on the lid of your fuse panel

Posted on May 20, 2009

  • 5 Answers

SOURCE: 1994 Mercury Grand Marquis Check Engine Light Code 332

its the tube going from the egr valve to your exhaust it have carbon build up and you either have to replace it or get a metal coat hanger and clean it out.

Posted on Sep 26, 2009

  • 58 Answers

SOURCE: where are the spark plugs located on a 2000 Mercury Grand Marquis

There are eight COPs (coil-on-plugs) to remove. Using a 7mm or 9/32" socket, remove each bolt securing each COP to the intake manifold on top of the engine. Remove all eight COPs, and the spark plugs are underneath. When replacing the spark plugs, use only the proper Ford/Motorcraft plugs, even if they cost twice as much as the aftermarket ones. You will avoid further headaches this way. Hope this helps.

Posted on Mar 30, 2010

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