1984 Mercury Grand marquis problems
The Mercury Grand Marquis is an automobile that was produced by Mercury from the 1975 until 2011 model years. Introduced as the flagship sub-model of the Mercury Marquis in 1975, the Grand Marquis became a stand-alone model line in 1983, serving as the largest Mercury sedan. The model line served as the sedan counterpart of the Mercury Colony Park station wagon up to 1991. The fourth generation was the basis of the 2003 and 2004 Mercury Marauder.
From 1979 until 2011, the Grand Marquis shared the rear-wheel drive (RWD) Panther platform with the Ford LTD Crown Victoria (Ford Crown Victoria after 1992), and from 1980, the Lincoln Town Car. For over three decades, the Ford and Mercury sedans were functionally identical, with two of the three generations of the model line sharing the same roofline. The Grand Marquis was available as a four-door sedan for nearly its entire run; from 1988 to its final year in 2011, it was the only body style that was offered. A four-door hardtop was available from 1975 to 1978 and a two-door hardtop coupe from 1975 to 1987.
The Grand Marquis was the second-best-selling Mercury line (after the Cougar) with 2.7 million units produced; at 36 years of continuous production, the Grand Marquis was the longest-running Mercury nameplate (the Cougar, 34 years). Ford manufactured the Grand Marquis, alongside the Mercury Marquis, Mercury Marauder, Ford (LTD) Crown Victoria, and (beginning in 2007) the Lincoln Town Car, at two facilities: the St. Louis Assembly Plant in Hazelwood, Missouri (1979-1985) and the St. Thomas Assembly Plant in Southwold, Ontario, Canada (1986-2011).
Ford announced the discontinuation of the Mercury brand in 2010, but a few 2011 model-year Mercurys were made. The last Grand Marquis - and the final Mercury branded car - was produced on January 4, 2011, at St. Thomas Assembly.
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Common 1984 Mercury Grand marquis problems
The Mercury Grand Marquis, produced by Ford Motor Company, has been a popular choice among car buyers for its spacious interior, smooth ride, and luxurious features. However, like any vehicle, the Grand Marquis has had its share of issues over the years. This article will focus on common problems with the Mercury Grand Marquis, specifically the 1984 model, based on complaints from owners.
According to the search results, the 1984 Mercury Grand Marquis ranks 4th in reliability out of 28 generations, with most complaints about engine problems. Here are some of the specific issues reported by owners:
- Poor Acceleration: Some owners have reported poor acceleration in their 1984 Grand Marquis. This can be caused by various factors, such as a clogged air filter, dirty fuel injectors, or a malfunctioning throttle position sensor.
- Burning Oil Smell: A burning oil smell is another common complaint among 1984 Grand Marquis owners. This can be due to an oil leak, worn-out piston rings, or a damaged valve seal.
- Fuel Injectors Stop Working: A few owners have reported that the fuel injectors in their 1984 Grand Marquis have stopped working. This can be caused by a clogged fuel filter, dirty fuel injectors, or a faulty fuel pump.
- Running Hot: Some owners have reported that their 1984 Grand Marquis runs hot. This can be caused by a faulty thermostat, a clogged radiator, or a low coolant level.
- Surges: A few owners have reported surges in their 1984 Grand Marquis. This can be caused by a faulty ignition coil, a damaged distributor cap, or a malfunctioning fuel pump.
- Car Shuts Off at Idle: Some owners have reported that their 1984 Grand Marquis shuts off at idle. This can be caused by a dirty throttle body, a faulty idle air control valve, or a malfunctioning crankshaft position sensor.
In addition to these engine problems, the 1984 Mercury Grand Marquis has also had issues with its electrical system. Some owners have reported problems with the car's lights, including headlights that don't work properly and headlight failures. These issues can be caused by a faulty alternator, a damaged wiring harness, or a blown fuse.
While these issues can be frustrating for 1984 Grand Marquis owners, it's important to note that many of these problems can be addressed with routine maintenance and repairs. Regular oil changes, fuel filter replacements, and coolant flushes can help prevent engine problems, while regular inspections of the electrical system can help identify and address any issues before they become major problems.
In conclusion, while the 1984 Mercury Grand Marquis has had its share of issues, many of these problems can be addressed with routine maintenance and repairs. If you're considering purchasing a used Grand Marquis, it's important to do your research and be aware of the common problems that have been reported by owners. By staying on top of routine maintenance and addressing any issues promptly, you can help ensure a safe and enjoyable driving experience.
1984 Mercury Grand marquis car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Mercury Grand marquis problems, we found that the most common problems with these 2023 model year vehicles are:
- Electrical system problems
- Engine and engine cooling problems
- Vehicle speed control problems
- Structure problems
- Unknown or other problems
The graph below shows statistics for all 1984 Mercury Grand marquis vehicle components and the number of complaints received.
1984 Mercury Grand marquis complaints
The NHTSA has received 23 complaints about various vehicle components related to the 1984 Mercury Grand marquis.
VEHICLE SPEED CONTROL PROBLEM
- Date Of Incident: 1996-03-20
- VIN: 2MEBP95F4EX
- Components: VEHICLE SPEED CONTROL
- Summary: VEHICLE EXPERIENCES SUDDEN ACCELERATION WITHOUT WARNING, THE DEALER HAS BEEN UNSUCCESSFUL IN FINDING A REMEDY FOR THE PROBLEM. *SLC
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 1996-03-20
- VIN: 2MEBP95F4EX
- Components: ENGINE AND ENGINE COOLING
- Summary: ENGINE WILL IDLE VERY HIGH AT STOPS AND WILL STALL WHEN TURNING. *SLC
UNKNOWN OR OTHER PROBLEM
- Date Of Incident: 2024-11-24
- VIN: 2MEBP93F2EX
- Components: UNKNOWN OR OTHER
- Summary: NO SUMMARY
SUSPENSION,FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 1998-11-06
- VIN: 2MEBP95FXEX
- Components: SUSPENSION,FUEL SYSTEM, GASOLINE
- Summary: THE CAR CONSTANTLY STALLS UPON TURNING, DECELERATION, AND BRAKING, CAUSING NEAR TRAFFIC ACCIDENTS. CAR WAS CHECK OVER FOR MALFUNCTION, BUT TO NO AVAIL.THE REAR OF THE CAR IS SAGGING VERY BADLY, CAUSING ME TO HAVE TO REPLACE THE REAR BUMPER AND TAILPIPE. THE HEIGHT OF THE CAR FROM GROUND TO FRAME IS APPROX. 6 3/4 INCHES. THE CAR CONSTANTLY BOTTOMS OUT IN THE REAR EVEN WITHOUT A LOAD, SPRINGS HAVE BEEN REPLACED 4 TIMES AND THE CAR SAGS AFTER 3 MONTHS OR SOONER.
VEHICLE SPEED CONTROL PROBLEM
- Date Of Incident: 1998-09-23
- Number Of Injuries: 1
- Crash: 1
- VIN: 1MEBT93F7EZ
- Components: VEHICLE SPEED CONTROL
- Summary: CONSUMER HAD THE VEHICLE IN PARK, THEN PUT THE VEHICLE IN DRIVE, AND THE VEHICLE JUST TOOK OFF, CAUSING THE CONSUMER TO RUN IN A YARD AND WENT DOWN AN ENBANKMENT AND HIT A TREE. THE INSURANCE COMPANY CLAIM THAT THE THROTTLE GOT STUCK. *AK *ML
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 1996-07-01
- Components: ENGINE AND ENGINE COOLING
- Summary: WHEN COMING TO A STOP THE BRAKE PEDAL AND THE ACCELERATOR HAVE TO BE DEPRESSED TO KEEP THE VEHICLE FROM STALLING. *AK
VEHICLE SPEED CONTROL PROBLEM
- Date Of Incident: 2024-11-24
- VIN: 1MEBP95F4EV
- Components: VEHICLE SPEED CONTROL
- Summary: WHILE DRIVING VEHICLE ON WET SLUSHY TYPE PAVEMENT OWNER TOOK FOOT OF ACCELERATOR AND ENGINE CONTINUED TO REV. CAUSE HAS NOT BEEN DETERMINED. *AK
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 1997-08-18
- VIN: 2MEBP95F8EX
- Components: ELECTRICAL SYSTEM
- Summary: ENGINE FAILED TO START AFTER VEHICLE PARKED OVERNIGHT, CAUSE UNKNOWN, NOT CHECKED BY DEALER, SEARS CHECKED BATTERY/ALTERNATOR, NO PROBLEM. VEHICLE AVAILABLE FOR INSPECTION. *AK
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 1996-06-27
- Fire: 1
- VIN: 1MEBP95F3EX
- Components: ELECTRICAL SYSTEM
- Summary: DROVE 5 MILES, SHUT OFF ENGINE, RETURNED WITHIN 5 TO 6 MINUTES, FLAMES WERE COMING UP FROM UNDERHOOD IN AREA OF WINDSHIELD, FUEL INJECTED ENGINE. *AK
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2024-11-24
- Fire: 1
- VIN: 1MEBP95F7EX
- Components: ELECTRICAL SYSTEM
- Summary: AFTER STARTING AUTO TO WARM IT UP THEN WALKED AWAY AND SUDDENLY IT BLEW UP AND BURNED EVERYTHING UNDER THE HOOD AND DASH. *AK
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2024-11-24
- Fire: 1
- VIN: 1MEBP95F7EX
- Components: ELECTRICAL SYSTEM
- Summary: AFTER STARTING AUTO TO WARM IT UP THEN WALKED AWAY AND SUDDENLY IT BLEW UP AND BURNED EVERYTHING UNDER THE HOOD AND DASH. *AK
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 1994-04-18
- Fire: 1
- VIN: 2MEBP95F9EX
- Components: ELECTRICAL SYSTEM
- Summary: PARKED VEHICLE, SMOKE STARTED TO COME FROM UNDERNEATH THE HOOD. RESULTING IN VEHICLE FIRE BY FIREWALL NEAR THE MOTOR. *AK
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 1994-04-18
- Fire: 1
- VIN: 2MEBP95F9EX
- Components: ELECTRICAL SYSTEM
- Summary: PARKED VEHICLE, SMOKE STARTED TO COME FROM UNDERNEATH THE HOOD. RESULTING IN VEHICLE FIRE BY FIREWALL NEAR THE MOTOR. *AK
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 1996-02-19
- VIN: 2MEBP95F5EX
- Components: ENGINE AND ENGINE COOLING
- Summary: EVP SENSOR CORE SYSTEM FAILED, KEEPING EGR VALVE OPEN, CAUSING ENGINE TO STALL. (FIRST VEHICLE ON 601573)
STRUCTURE PROBLEM
- Date Of Incident: 1996-03-28
- VIN: 2MEBP95F5EX
- Components: STRUCTURE
- Summary: HEAD LINER FABRIC/SUN VISORS HANGING DOWN, OBSCURING VISION.
UNKNOWN OR OTHER PROBLEM
- Date Of Incident: 1996-03-28
- VIN: 2MEBP95F5EX
- Components: UNKNOWN OR OTHER
- Summary: DASHBOARD VINYL CRACKED, DETERIORATED AND DISINTEGRATED, FALLING INTO SPEAKER OPENINGS, CREATING POTENTIAL FOR ELECTRICAL SHORT.
STRUCTURE PROBLEM
- Date Of Incident: 1996-02-19
- VIN: 2MEBP95F5EX
- Components: STRUCTURE
- Summary: HEAD LINER IS LOOSE, BLOCKING VISIBILITY.
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 1996-02-19
- VIN: 2MEBP95F5EX
- Components: ELECTRICAL SYSTEM
- Summary: IGNITION SWITCH FAILS.
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 1996-02-19
- VIN: 2MEBP95F5EX
- Components: ENGINE AND ENGINE COOLING
- Summary: EVP SENSOR CAUSES EGR VALVE TO STAY OPEN, CAUSING ENGINE TO STALL. (FIRST VEHICLE ON 601339) *DSH
STRUCTURE PROBLEM
- Date Of Incident: 1996-02-19
- VIN: 2MEBP95F5EX
- Components: STRUCTURE
- Summary: BOTH SUNVISORS HANG DOWN, BLOCKING VISIBILITY.
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 1994-01-01
- Number Of Deaths: 2
- Fire: 1
- VIN: 1MEBP89C9EG
- Components: FUEL SYSTEM, GASOLINE
- Summary: VEHICLE EXPLODED INTO FLAMES WHEN HIT FROM BEHIND. *DH
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 1993-09-01
- VIN: 1MEBP95F5EZ
- Components: ENGINE AND ENGINE COOLING
- Summary: ENGINE STALLS/HESITATES/ROUGH IDLE DUE TO EGR VALVE FAILURE (OTHER VEHICLE ON 479693). *AK
VEHICLE SPEED CONTROL PROBLEM
- Date Of Incident: 1994-06-10
- Crash: 1
- VIN: 2MEBP95F2EX
- Components: VEHICLE SPEED CONTROL
- Summary: ACCELERATOR STUCK WHILE ATTEMPTING TO BACK UP, CAUSING SUDDEN ACCELERATION/LOSS OF CONTROL/ACCIDENT. *SKD
1984 Mercury Grand marquis recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 2 recalls for different components of the 1984 Mercury Grand marquis.
- Manufacturer: FEDERAL-MOGUL CORPORATION
- Components: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- Summary: CERTAIN FEDERAL-MOGUL AFTERMARKET FUEL PUMPS SOLD UNDER THE BRAND NAMES OF CARTER, ACCUFLOW, NAPA, TRUFLOW, PARTS DEPO, AND PARTS MASTER, SHIPPED BETWEEN AUGUST 2006 AND JULY 2007 FOR USE ON THE VEHICLES LISTED ABOVE. THE FUEL PUMP DIAPHRAGM IN CERTAIN PRODUCTION RUNS MAY HAVE BEEN IMPROPERLY INSTALLED OR INADEQUATELY TESTED WHICH MAY CAUSE THE FUEL PUMP TO LEAK.
- Consequence: A LEAKING FUEL PUMP COULD CREATE A VEHICLE FIRE HAZARD.
- Remedy: FEDERAL-MOGUL WILL NOTIFY OWNERS AND REPLACE THE DEFECTIVE FUEL PUMPS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 15, 2007. OWNERS CAN CONTACT FEDERAL-MOGUL AT 248-354-7700.
- Manufacturer: FORD MOTOR COMPANY
- Components: SEAT BELTS:FRONT:ANCHORAGE
- Summary: THE BOLTS THAT ATTACH THE D-SHAPED RING FOR THE SHOULDER BELT ARE INADEQUATELY SUPPORTED BY THE MATERIAL IN WHICH THEY ARE MOUNTED. THE ATTACHMENT DOES NOT COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 210, "SEAT BELT ASSEMBLY ANCHORAGES".
- Remedy: DEALERS WILL INSTALL NEW ATTACHING HARDWARE TO IMPROVE THE STRENGTH OF THE MOUNTING.
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