Question about 2003 Mercury Grand Marquis

1 Answer

Head lights go out while driving--not a short but possibly sensor in headlight

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Mercury Master
  • 76,649 Answers

This is caused by a burnt connector at the headlight switch, replace the switch and the connector to it, make sure the repair connector is properly soldered in and shrink tubed at the connections or the new connector will overheat again, this is a common problem.
here is the Ford part nunmber and price, which is the cheapest for the part.
MOTORCRAFT Part # SW6703 {#8W7Z11654AA}
Includes Thumbwheel Rheostat $34.79


Head lights go out while driving--not a short but - 33ccb4c.jpg

Posted on Sep 15, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What's your problem?head lights wont stay on


it could be a loose connection to the headlight that short circuits on something or comes loose whilst driving. check the wires connected to the headlights

Mar 30, 2012 | 2003 Mercury Grand Marquis

1 Answer

When i turn on the head light it doest light up


Check and confirm, that headlight bulbs are glowing.If the bulb itself is faulty, it will not light.If bulb checked out, ok, then other possibility can be headlight fuse in the engine compartment fuse box.There are two 15a fuses located in the fuse holder assembly on the driverside engine compartment.Check both this fuses.Also check the relays in the fuse compartment.-------- If any of the fuse or relay is blown, replace that and see.But if all fuses and relay checked ok, then its quite possible that problem is with head light switch itself.Its getting short.------------
This should help.Thanks.Helpmech.

Apr 17, 2011 | 1998 Lexus Gs 300

1 Answer

FRONT HEAD LIGHTS ARE NOT WORKING AND CIGARETTE LIGHTER NOT WORKING


i would think a fuse is the culprit behind that check t your fuses and relays for the headlights... it may also be a short in the wiring as far the headlights go.. or quiet possibly the lights have blown

Aug 09, 2010 | 2003 Buick Regal

2 Answers

As I drive my 1994 chevy cavalier at night my headlights will turn off without turning them off. So I turn my headlight switch off then back on and the headlights will come back on. But 5 or 10 minutes...


that happened to me too you have to switch out the the hole blinker head light switch. i got one at a junk yard for $22 my lights havent asted up since

Mar 13, 2010 | 1994 Chevrolet Cavalier

3 Answers

Headlights go on and off while driving


there might be a prblem with the sensors on your dash or a shor t in the wiring to the headlights

Aug 01, 2009 | 2000 Ford Focus

1 Answer

Bum headlights


The switch to the head light is shorting out and taking out the head lights. The other problem could be the body control module is shorting out .
I would replace the head light switch first. Then if that does not work take to a shop to diagnose the vehicle.

May 15, 2009 | 2006 Honda CR-V

1 Answer

Lights dimming


My first thought:

This is caused by an electrical short circuit which is putting a big load on the alternator. The short could be pretty much anywhere -- the headlights would be one possibility.

The short may get worse and could possibly disable the vehicle.
I think you need a good mechanic.

Apr 22, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

1996 Ford Windstar Minivan


The head lights and the fog lights have seperate fuses in the fuse panel under the dash. If the fuse is blown, you might possibly have a short. Hope this helps.

Jan 20, 2009 | 1995 Ford Windstar

1 Answer

Head lights turn off and come back on on their own!!!!!


There is a short in the power wire to the headlights from the headlight switch. The internal circuit breaker in the headlight switch is overheating and shutting them down, until it cools off.

Dec 08, 2008 | 1988 Mercury Grand Marquis

1 Answer

EFI FUSE BLOWS


u can use a headlight to find the short use a old style headlight usually 3 prongs use some 14 guage wire and hook to prongs to head light and run the other end of the wires where efi fuse goes turn key on the headlight will light up as long as there is a short , u can then start wiggle wiring or unplugging engine sensors till headlight goes out when it goes out you have found the short

Nov 22, 2008 | 2003 Toyota Sienna

Not finding what you are looking for?
2003 Mercury Grand Marquis Logo

316 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts

yadayada
yadayada

Level 3 Expert

76649 Answers

fordexpert

Level 3 Expert

5537 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...