I believe my LCM on my 2000 grand marquis is going out. Headlights and dash flicker on and off while driving and I have dealt with it for about a year in a half now due to how expensive it is!

Asked by Sep 28, 2014 at 10:41 AM about the 2000 Mercury Grand Marquis LS

Question type: Maintenance & Repair

Now my blinkers won't even come on I can
only assume it's due to the LCM. Also it is
making a clicking noise as it's always done
but now even when the cars off and I
believe it's killing my battery. I guess my
question is would a 2000 fall into that "un-
recall" it has 170000 miles on it?

7 Answers

60,265

From what you have said i,think you may need to check your alternator,sound,s like it may be working a part time job.

60,265

If not alternator,load test the battery.

Well the alternator doesn't smell bad and when running I have a good charge on my battery according to the battery gauge.

It's almost like the power is getting blocked from the battery to the car but all connections are good and clean

60,265

Have you checked the ground to the frame to motor?

It has one from neg to frame then from frame to power distribution box I actually found a loose black wire coming from my ac motor and ac doesn't work

Grounded the black ac wire and it started no problem wtf I'm not understanding

Your Answer

Add photo

Related Questions

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 2,149 nationwide Grand Marquis listings starting at $1,985.

ZIP:

Search Mercury Grand Marquis Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,060
#2 kbro
kbro
Reputation 2,040
#3 Js08016
Js08016
Reputation 1,580
View All

Related Models For Sale

Used Lincoln Town Car
34 Great Deals out of 2,102 listings starting at $1,995
Used Ford Crown Victoria
6 Great Deals out of 1,392 listings starting at $1,700
Used Chevrolet Impala
901 Great Deals out of 35,272 listings starting at $1,700
Used Ford F-150
3,013 Great Deals out of 207,755 listings starting at $1,000
Used Cadillac DeVille
4 Great Deals out of 1,964 listings starting at $1,600
Used Chevrolet Tahoe
815 Great Deals out of 27,814 listings starting at $1,700
Used Buick LeSabre
10 Great Deals out of 2,254 listings starting at $1,299
Used Honda Accord
994 Great Deals out of 75,204 listings starting at $899
Used Toyota Camry
1,158 Great Deals out of 97,109 listings starting at $1,250
Used Chevrolet Camaro
400 Great Deals out of 40,630 listings starting at $3,500

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
5 Great Deals out of 122 listings starting at $2,999
2009 Mercury Grand Marquis LS For Sale
4 Great Deals out of 93 listings starting at $2,995
2008 Mercury Grand Marquis LS For Sale
4 Great Deals out of 98 listings starting at $2,995