FaultScore

1994 Mercury Grand Marquis electrical problems

10 of the 197 complaints about the 1994 Mercury Grand Marquis are about the electrical system — 5% of everything reported for this model year. Half of the failures with a mileage on record happened before 104,863 miles.

F

10

Complaints

0

Crashes

5

Fires

0

Injuries

Exactly what failed

Front Underhood 2 20.0%
Horn 2 20.0%
Wiring 2 20.0%
Electrical System 2 20.0%
Fuses AND Circuit Breakers 1 10.0%
Interior/Under Dash 1 10.0%

Electrical System across every Mercury Grand Marquis year

1985 13 2.5%
1986 11 2.1%
1987 25 4.8%
1988 46 8.9%
1989 19 3.7%
1990 14 2.7%
1991 23 4.4%
1992 44 8.5%
1993 21 4.1%
1994 10 1.9%
1995 23 4.4%
1996 17 3.3%
1997 12 2.3%
1998 15 2.9%
1999 16 3.1%
2000 18 3.5%
2001 13 2.5%
2002 10 1.9%
2003 52 10.0%
2004 40 7.7%
2005 76 14.7%

What owners said

Filed with NHTSA, in their own words.

at 92,727 miles Lanett, AL

ELECTRICAL SYSTEM

I WAS DRIVING MY 1994 MERCURY GRAND MARQUIS GS HOME FROM WORK ONE NIGHT AROUND 12:00 AM AND I EXPERIENCED TOTAL LIGHTING FAILURE. ALL OF THE SUDDEN EVERYTHING WAS PITCH BLACK NO LIGHTS WHAT SO EVER. EVERY LIGHT ON THE CAR WOULD GO OUT AND COME BACK ON SIMULTANEOUSLY,CAUSING ME SWERVE, ALMOST CRASHING HEAD ON WITH ONCOMING TRAFFIC. I HAVE READ ONLINE OF OTHER GRAND MARQUIS' AND FORD CROWN VICTORIA'S DOING THE SAME THING.THIS WAS ONLY MY FIRST EXPERIENCE WITH THE LIGHTS. I HAVE OWNED THE CAR SINCE JAN 23,2013 AND THE LIGHTS CONTINUE TO DO THIS THEREFORE I CANNOT DRIVE IT AT NIGHT. THE CAR IS ALL ORIGINAL NO AFTERMARKET NOTHING BUT A CD PLAYER. LIGHTS WERE DOING THIS BEFORE I INSTALLED THE CD PLAYER. SO AFTER THIS EXPERIENCE I PULLED THE LIGHT SWITCH OFF ONLY TO FIND THAT THE FACTORY WIRING HARNESS THAT PLUGS INTO THE BACK OF THE LIGHT SWITCH HAD MELTED WHERE THE POSITIVE BATTERY WIRE SLOT IS.SO I REPLACED THE HARNESS WITH A BRAND NEW ONE,AND NOTHING.LIGHTS STILL GO OUT. A COUPLE WEEKS LATER I TOOK THE LIGHT SWITCH OFF AGAIN TO FIND THE NEW WIRING HARNESS I HAD JUST BOUGHT 2 WEEKS PRIOR MELTED JUST LIKE THE ONE FROM THE FACTORY, SAME WIRE SLOT. SO NOW I HAVE TO GO OUT AND BUY ANOTHER ONE. I HAVE ALSO REPLACED THE BATTERY AND THE AUTO LIGHTING CONTROL MODULE TOO THAT DIDNT FIX ANYTHING EITHER.IM GOING TO TRY A NEW HEADLIGHT SWITCH AND A NOTHER NEW HARNESS TOO. HOPEFULLY THAT WILL FIX IT.BUT UNTIL I GET THE MONEY TO FIX ONE OF FORD/MERCURY'S MOST ELECTRICAL PROBLEMS I WONT BE DRIVING IT AT NIGHT. BUT REALLY THIS CAR SHOULD BE RECALLED AND FORD SHOULD HAVE TO FIX THIS. GRAND MARQUIS AND CROWN VICS HAVE HAD PROBLEMS WITH THEIR LIGHT SYSTEMS FAILING ALL THE WAY UP UNTIL THEY QUIT MAKING THEM IN 2011. WISH I WOULD HAVE KNOWN THIS ON 1/23/2013 I WOULDN'T HAVE BOUGHT MINE, THEY JUST ARE NOT SAFE.

NHTSA complaint #10510680 — an unverified report by a vehicle owner.

Donna, TX Fire

ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD

DT: THE CONTACT OWNS A 1994 MERCURY GRAND MARQUIS. THE CONTACT STATED THAT IN MAY 2005 THE VEHICLE CAUGHT ON FIRE. THE FIRE STARTED IN THE ELECTRICAL SYSTEM IN THE STEERING COLUMN UNDER THE HOOD. THERE WAS NOTHING UNUSUAL ABOUT THE WAY THE VEHICLE WAS OPERATING BEFORE THIS HAPPENED. THE VEHICLE HAD BEEN PARKED ABOUT TWENTY MINUTES WHEN IT CAUGHT ON FIRE. THE FIRE MELTED ALL THE PLASTIC UNDER THE HOOD BECAUSE THEY COULD NOT GET THE HOOD TO OPEN TO PUT THE FIRE OUT. *AK

NHTSA complaint #10134060 — an unverified report by a vehicle owner.

at 117,000 miles Raeford, NC Fire

ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH

1994 MERCURY GRAND MARQUIS: DURING A DRIVE AT NIGHT, THE HEADLIGHTS BEGAN TO FILICKER AT FIRST (ALONG WITH INTERIOR PANEL LIGHTS); THIS WAS ONLY INTERMITTENT, AND COULD BE SOLVED WITH PRECISE PLACEMENT OF THE PULL SWITCH. WITHIN 10 DAYS, THE FILCKERING WAS UNCONTROLLABLE AND NO LONGER INTERMITTANT. I OPENED UP THE DASH-BOARD TO POTENTIALLY REMOVE THE SWITCH FOR REPLACEMENT. ONCE I HAD ACCESS, I TURNED ON THE LIGHTS AND BEGAN TO MANEUVER THE WIRING TO 4658078 ATTEMPT TO DUPLICATE THE PROBLEM AND STOP THE PROBLEM IN ORDER TO CHECK FOR A LOOSE CONNECTION. AS I WAS REACHIG AROUND THE WIRING, I FELT A VERY HOT WIRE; UPON INSPECTION, I DISCOVERED THAT THE WIRE IN QUESTION WAS BURNED UP TO 1/4 " PAST THE CONNECTOR (EXPOSING ALL OF THE WIRE FIBERS) AND THE CONNECTOR ITSELF AT THAT POINT WAS CHARRED, WARPED, AND BLISTERED. I HAVEN'T REPAIRED IT AT THIS TIME.

NHTSA complaint #10108288 — an unverified report by a vehicle owner.

at 70,000 miles Garland, TX Fire

ELECTRICAL SYSTEM

CAR PARKED IN GARAGE. NOT DRIVEN FOR 24 HOURS. FIRE STARTED UNDER HOOD OF CAR. FIRE SPREAD THROUGHOUT ATTIC AND HOUSE. HOUSE DAMAGED $150,000. HOUSE IN FLOOD PLAIN (GRANDFATHERED). HOUSE HAD TO BE DEMOLISHED AND COULD NOT REBUILD ON SITE AS IT STOOD. FORCED TO FIND NEW HOME, REPLACE POSSESSIONS AND AUTOMOBILE.

NHTSA complaint #10073286 — an unverified report by a vehicle owner.

at 140,000 miles Houston, TX Fire

ELECTRICAL SYSTEM:WIRING

A VEHICLE FIRE STARTED AT NIGHT WHILE PARKED WITH THE KEY OUT OF THE IGNITION. THE VEHICLE HAD NOT BEEN DRIVEN FOR 8 HOURS. THE VEHICLE WAS PARKED IN THE GARAGE. THE ANTI LOCK BRAKE LIGHT WAS ON. *AK

NHTSA complaint #10046074 — an unverified report by a vehicle owner.

Norcross, GA Fire

ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD

THERE WAS A FIRE THAT STARTED FROM DRIVER'S SIDE ENGINE COMPARTMENT. CONTACTED DEALER, AND THE DEALER WAS NOT WILLING TO DO ANYTHING.

NHTSA complaint #8007102 — an unverified report by a vehicle owner.

East Hanover, NJ

ELECTRICAL SYSTEM:WIRING

WAS DRIVING 55MPH AT NIGHT WHEN THE LIGHT SWITCH WENT OUT. HAD NO INTERIOR OR OUTSIDE LIGHTING. TOOK VEHICLE TO DEALERSHIP IN MORNING. WAS INFORMED BY MECHANIC THE LIGHT SWITCH BURNED OUT. THE FUSE WAS STILL GOOD & DID NOT BLOW OUT. THE WIRE HARNESS HAD MELTED THE PLASTIC CONNECTOR.

NHTSA complaint #855002 — an unverified report by a vehicle owner.

Hoffman Estates, IL

ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS

WAS USING HIGH BEAMS, ALL ELECTRICAL SYSTEM WOULD FLICKER & THEN GO OUT. TOOK TO DEALER & HAD IT REPAIRED. PROBLEM LATER RETURNED.

NHTSA complaint #844900 — an unverified report by a vehicle owner.

Holiday, FL

ELECTRICAL SYSTEM:HORN

HORN BUTTON DESIGN FLAW, BUTTONS TOO SMALL TO FIND WHEN NECESSARY, CONSUMER WAS UNABLE TO FIND DURING EMERGENCIES.

NHTSA complaint #539115 — an unverified report by a vehicle owner.

Sarasota, FL

ELECTRICAL SYSTEM:HORN

DIFFICULTY ACCESSING HORN BUTTONS.

NHTSA complaint #511336 — an unverified report by a vehicle owner.

Other 1994 Mercury Grand Marquis problems

← Full 1994 Mercury Grand Marquis report