I have a 2000 Grand Marquis the overhead lights deep going on when the car is turned off, resulting in the battery going dead. If I take the light out (also the ones by the floor) will that take care

Asked by Jul 16, 2013 at 08:22 PM about the 2000 Mercury Grand Marquis LS

Question type: Maintenance & Repair

I took the overhead light out, didn't know about the floor lights. If I take them out will it take
care of the problem??Do I need to get a new LCM ?

6 Answers

get a NEW battery...clean the spot where the 1/0 cable connects to your chassis/ground...must be able to pull 300 cold cranking amps at least~ here and to the engine block (near the alternator) as well~

when you maintain the main ground connection any latent charge should dissipate (LCM, BCM, ECM...all)~

No, thats not the problem.

what's NOT the problem LindaL...http://www.youtube.com/watch? feature=player_detailpage&v=zdIKNnwEjIs

full disconnection of all things electrical did not reset this condition? is this what you are so rudely trying to tell me there?

23,825

It very well could be an LCM. The very best way to tell if it's an expensive Lighting Control Module is to hook up a scan tool that is capable of reading the LCM's inputs and outputs. You could try pulling all the bulbs - but that's not a cure and you could have other failures looming inside the LCM on top of that. There are other things that can bring a battery down: (Like judge_roy enjoys frequently pointing out) failing batteries and connections that fail, Alternators that keep the field energized after the car has shut off, fuel pumps that run incessantly etc. A couple of interior light bulbs should not bring a battery down overnight. Ever. Either the Battery isn't holding a charge OR the battery isn't being charged enough. I work on a Fleet of Crown Victoria Police Interceptors (same car - different badge). Frequently we see Alternators that stay on, AC clutches that stay on, Batteries that are WAY overtaxed by being repeatedly discharged and recharged (cop cars do that a lot). A typical LCM failure though usually involves the Headlights flashing on their own - not the interior lights. BTW - is the vehicle equipped with an aftermarket alarm?

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,840 nationwide Grand Marquis listings starting at $1,600.

ZIP:

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,370
#2 kbro
kbro
Reputation 2,050
#3 Js08016
Js08016
Reputation 1,710
View All

Related Models For Sale

Used Ford Crown Victoria
14 Great Deals out of 1,063 listings starting at $2,225
Used Lincoln Town Car
32 Great Deals out of 1,851 listings starting at $600
Used Chevrolet Impala
542 Great Deals out of 29,827 listings starting at $799
Used Cadillac DeVille
8 Great Deals out of 1,634 listings starting at $2,200
Used Ford Mustang
396 Great Deals out of 47,365 listings starting at $1,999
Used Lincoln Continental
4,168 listings starting at $41,448
Used Ford Taurus
250 Great Deals out of 20,437 listings starting at $1,100
Used Ford F-150
2,261 Great Deals out of 209,447 listings starting at $1,499
Used Chevrolet Tahoe
583 Great Deals out of 27,619 listings starting at $1,500
Used Honda Accord
788 Great Deals out of 88,192 listings starting at $1,150

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
3 Great Deals out of 91 listings starting at $2,495
2009 Mercury Grand Marquis LS For Sale
6 Great Deals out of 96 listings starting at $4,000
2008 Mercury Grand Marquis LS For Sale
3 Great Deals out of 102 listings starting at $2,250