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Ford Crown Victoria/Mercury Grand Marquis Electrical/Lighting

130 messages,  Last post on Dec 07, 2009 at 12:56 PM

You are in the Ford Crown Victoria/Mercury Grand Marquis Forum. Your Hosts are pat & karens

What is this discussion about? Ford Crown Victoria, Mercury Grand Marquis, Lights, Electrical, Sedan


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#103 of 130
Re: head light go 2004 crown vic. [houselight] by markeez
Apr 23, 2009 (6:47 pm)
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Replying to: houselight (Mar 09, 2009 8:58 am)

I am having the same trouble with headlights they will go off whenever they want most of the time it is right when i use the turn signals. I was on the interstate for a while and they stayed on way longer than they normally do. Im wondering if it has to do with more draw with brake lights and signals. All though the past few days I cant keep them on for nothing. Just for kickers I put them on in the garage and just waited about 5 minutes and they went off and on and off. I unplugged one side of the headlights and it stayed on a long time so I tried the turn signal and it immediately went out. My wife had a fender bender a month ago so it has been hard to figure out why this is happening. I had to replace the header panel and grill. I guess I will have to try lcm. Where did you get yours. Thanx mark
#104 of 130
headlight problem by gearhead11
Apr 23, 2009 (9:59 pm)
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I got the auto lamp relay from NAPA ($12.00) but it wouldn't work right so I just unplugged the relay and haven't had any problems, Your relay may be up front by the lights and the sensor also. Do you have a chasis electrical wiring schematic?
That shows how your lights are wired with relays and such. I bought one off ebay for mine. I know it can get real frustrating. Hang in there.
#105 of 130
94 Grand Marquis Turn Signals and Brake Light by tachyon54
May 01, 2009 (12:57 pm)
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Lost my tail lights, brake lights, dash lights and turn signals a few weeks ago, replaced the headlight switch which fixed everything but the signals and brake lights. I've been all over it, replaced the flasher and fuses, still no luck. Strange thing is, the brake light in the back window works fine, just not the ones in the tail lights. I love my 94 Merc but this is driving me crazy. Anybody have advice?
#106 of 130
flashing headlights by pmitchellp
May 17, 2009 (8:22 pm)
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I have a 95 Mercury Grand Marquis and the headlights flash intermittently. I changed the headlight switch 3 times but it only solves the problem for a couple of months.
Someone said something about an ambient light sensor in the rear view mirrror. Does my car have one of those, or anything like it?
#107 of 130
Re: 94 Grand Marquis Turn Signals and Brake Light [tachyon54] by pmitchellp
May 17, 2009 (8:26 pm)
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Replying to: tachyon54 (May 01, 2009 12:57 pm)

I had a GMC Savana that had the same problem. It turned out to be a corroded parking light socket in front.
#108 of 130
Dome light comes on intermittently at night by dowag
Aug 18, 2009 (8:06 pm)
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My dome light (and L/R floorboard lights come on and off at night and will drain the battery completely. Comes on for variable times and then is off for a variable time--only at night. I read where others have had similar problem but don't see that anyone has really had the problem fixed. This is a 2000 MGM. I have "sold" the car (will deliver in two weeks)....and now this problem. (otherwise a no problems car)
#109 of 130
Re: Dome light comes on intermittently at night [dowag] by dowag
Aug 19, 2009 (4:16 pm)
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Replying to: dowag (Aug 18, 2009 8:06 pm)

Thanks, I will check on the parking light socket. Would never have thought of that.
#110 of 130
Same blinking dome light problem by bigshot60
Aug 31, 2009 (6:36 pm)
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2000 grand marquis, close doors, light goes out then 5 seconds later the light comes back on, 5 seconds goes off. this just started tonight. haven't had much time to play with it, but i will try all the ideas here. it doesn't happen when the car is running.
#111 of 130
Headlights by 46steve
Sep 11, 2009 (4:29 am)
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Does anyone know how to change the entire headlight assembly on a 1998 Mercury Grand Marquis.
#112 of 130
'94 GM courtesy lights won't turn off by pq6y657
Sep 25, 2009 (6:22 pm)
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Lights involved include door panel, foot well, and dome. This car has a sensor on top of the dash on the left side and is not obstructed.
 
The auto-lamp delay works correctly with the headlights turning off quickly when the rotary control is just past the on position, however, the lights above stay on.
 
The car went back to the dealer for a safety recall on 9/23 relating to the cruise control starting a fire.
 
I have removed the fuse(#4) controlling interior lighting and a few other things to keep the battery up. All plunger switches in the door panels are operating freely.
 
I have not been able to find the control, if any, that controls brightness of the IP. In other cars I have seen/used turning the brightness control to the extreme activates the dome.
 
Thanks in advance!

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