The contact owns a 2002 Mercury Grand Marquis. The contact stated while driving 50 MPH at night, the cruise control mode malfunctioned, and the speed of the vehicle increased independently. The contact stated that the brake pedal was depressed several times to the floor, but the vehicle failed to stop. The contact turned off the vehicle, and the vehicle came to a stop. The vehicle was towed to the contact's residence. The contact stated that he was afraid of driving the vehicle again. The contact unregistered the vehicle and turned the license plates of the vehicle to the Department of Motor Vehicles. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. Additionally, the contact stated that the check engine and the low oil pressure warning lights had illuminated two days prior to the failure. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 58,000.
The worst 2002 Mercury Grand Marquis problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Acceleration17
- Engine11
- Suspension11
- Electrical10
- Steering9
- Seat belts7
- Tires7
- Brakes6
- Lights6
- Fuel system4
- Airbags3
- Visibility3
- Body1
- Transmission1
Specific symptoms reported on the 2002 Mercury Grand Marquis
Recalls
No recalls on record for this model year.
Defect investigations
Spark plug ejection from cylinder head
On september 6, 2005, odi received a petition requesting that the agency investigate allegations of engine spark plug ejection in certain model year 1997 through 2004 ford vehicles with triton v-8 and v-10 engines.odi received a total of 474 non-duplicative complaints on the subject vehicles where the complainant, or the dealer repairing the vehicle, reported that a spark plug detached from the cylinder and/or ejected from the engine.as of december 8, 2005, odi is not aware of any allegations where the alleged defect resulted in a loss of vehicle control, a crash, an injury, or a fatality in any of the 10,319,810 subject vehicles.in addition, odi is aware of only two incidents where the vehicle stalled without restart.information contained in the odi consumer complaints and obtained from 72 telephone interviews with complainants showed the following:(1) 99% of the complaints were on my 1997 to 2002 subject vehicles.(2) most the complainants reported hearing a loud pop while driving or upon starting up the vehicle followed by a loud, repetitive clicking or popping sound.(3) many of the complainants reported that the popping sound was accompanied by some loss of vehicle power; however, in 99% of the incidents reported, the vehicle did not stall.in the very few incidents where the vehicle did stall, most vehicles could be restarted.(4) only a small percentage of the complainants cited that they smelled gas or a slight burning smell when the incident occurred.(5) in all but a very few incidents, vehicle damage was limited to the engine.in one incident, the complaint reported that the fuel rail was damaged and replaced after one of the spark plugs ejected from the engine; however, the complainant reported that the damage did not result in any type of fuel leak or fire.in another incident, the only incident where a fire was alleged, the complainant reported that no fluid leak was observed, but that a fire resulted after the spark plug had ejected from the engine and he had restarted the vehicle and driven to another location.none of the complainants reported any damage to the vehicle hood.(6) only two complainants reported that they observed what appeared to be some drops of fuel coming from the cylinder where the spark plug had failed or on the spark plug itself; however, each of these complainants reported that there was no smoke or flames as a result of his incident.as the petitioner noted, and odi?s analysis showed, it is possible for a spark plug to detach from the engine cylinder threads in the subject vehicles.however, odi?s analysis of 474 complaints describing such incidents found only a very few alleged any safety-related consequences.none of these showed any evidence of a serious safety consequence.given the large population and relatively long exposure time of the subject vehicles, the complaint analysis indicates that the risk to motor vehicle safety from the alleged defect is very low.in view of the foregoing, it is unlikely that the federal safety agency would issue an order for the notification and remedy of the alleged defect at the conclusion of the investigation requested in the petition.therefore, in view of the need to allocate and prioritize the federal safety agency?s limited resources to best accomplish the agency?s safety mission, the petition is denied.
DP05005
Technical service bulletins for the 2002 Mercury Grand Marquis 67
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust
- Some 1997-2008 vehicles equipped with a 4.6L 2V, 5.4L 2V, or 6.8L 2V engine--spark plug thread repair...
- Limited slip axle chatter, shudder, binding sensation, or vibration during low speed turning maneuvers
- Wds cop kit diagnostic tip - coil on plug (COP) ignition systems - engine misfire or rough running
- Safety belt retraction speed
- AM FM and cellular phone reception interference
- AM/FM and cellular phone reception interference - service tip
- Numerous anti-lock brake system (ABS) wheel speed sensor (WSS) dtcs, such as C1145, C1155, C1165, C1175,...
- Aluminum corrosion - service tip
- Rear window defroster grid/integral antenna diagnosis and repair - terminal tab repair
2002 Mercury Grand Marquis fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 4.6L 8‑cyl | RWD | 15 | 23 | 18 |
What 2002 Mercury Grand Marquis owners say
Most recent owner complaints, unedited.
The contact owns a 2002 Mercury Grand Marquis. The contact stated that after securely latching the seat belt, the driver's side front and passenger's side front seat belt buckles unintendedly unlatched. There were no warning lights illuminated. The contact stated that the failure was related to the federal safety agency Campaign Number: 01V227001 (Seat Belts). The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted and opened a case, but no additional assistance was provided. The approximate failure mileage was 100,000.
For sometime now the Headlights on my 2002 Mercury Grand Marquis appear to fade or dim soon after turning them on; giving the impression they are losing power and about to fail. I live in the mountains and am very familiar with each and every turn I See on the roads I travel. You See that Is The Matter of Fact- If My Headlights Failed; I Would Not See The Turn Possibly A Fatal Fact.
?yrs.ago While backing out of parking space at Calaveras Lumber, after shifting into reverse, & removing my foot from the brake; the engine appeared to receive a huge burst of fuel which shot me backward like a rocket slamming my vehicle into and wedging it under the frame of a pickup truck parked in the same lot. I am glad I was parked and had my foot on the brake prior to this unit or system malfunction otherwise the injuries could easily have been fatal on the highway. I think this defect may be a contributing factor to the car dying recently while on my way to a Wedding Reception in Roseville, which left me stranded after dark for 41/2hrs and 71/2hrs. 2days later. I have not been able to start vehicle since and mechanics unable to diagnose why the engine is fuel starved when system parts tested appear to be in good working order. Something seems to be shutting off power or preventing power to the fuel pump and it is not the inertia switch, relays, fuses etc.. Components have been previously inspected by numerous others including dealer. No Recognizable Alert/Warning Prior to Incidents!
2002 mercury grand marquis. Consumer stated that while driving vehicle they had no control over steering. *ld the consumer stated while making a right turn at a traffic light, the steering went out. The dealer stated the coupler bolt, clock spring, cover and contact plate were missing and replaced.
I was driving on a 2 lane highway when I ran over some bumps in the road. The steering wheel went right and left several times, I was afraid I was going to lose control of my car. I found a recall about this same thing. Tell me what I need to do to get this situation fixed. Also, the windshield wipers stop in the straight up position. What is needed to fix this:
Seat belt won't stay fastened and the steering creaks
Tl* the contact owns a 2002 mercury grand marquis. The contact stated that the hazard lights, daytime running lamps, low beam, and high beam headlights failed to illuminate. The failure progressed without warning. Two dealers (pompano ford lincoln, 2741 n federal hwy, pompano beach, fl 33064, (888) 718-9266 and schumacher lincoln of delray, 2102 s federal hwy, delray beach, fl 33483, (561) 454-1800) were contacted, but the vehicle was not diagnosed or repaired. The manufacturer was notified. There were five tsbs for the exterior lighting, but no recall was issued. The approximate failure mileage was 72,234.
The car has 87934 miles on it. When driving over 50 miles a hour it jerks and shakes the check emgine light will start flashing the coolant loght comes on then dies but will start right back up. Then coolant levels are fine. The license plate light does not work replaced bulbs and fuses
The seat belts will not stay attached. You can put them on and they appear to be locked in and you can pull on them to see if they are attached and they appear to attach but then while just sitting, they may pop-off you and become disengaged leaving you without your seat belt on you. This can occur if the car is in motion or if it is standing still. Sometimes it will even pop-off right after you put it in the buckle. They are faulty. We called ford and they will not do anything to repair or recall it. I talked to 2 people at ford customer care and sent them an email, also but they will not do anything to help us. We also contacted a mercury dealer who told us to call ford.
Compare the 2002 Mercury Grand Marquis
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Questions about the 2002 Mercury Grand Marquis
Is the 2002 Mercury Grand Marquis reliable?
Owners have filed 78 complaints about the 2002 Mercury Grand Marquis, fewer than a typical Grand Marquis model year.
What is the 2002 Mercury Grand Marquis year score?
The 2002 Mercury Grand Marquis scores 78 out of 100 (average). The score compares it with the other model years of the Mercury Grand Marquis: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2002 Mercury Grand Marquis?
Acceleration and speed control, with 17 complaints, typically around 50,000 miles. Next is engine (11).
How many recalls does the 2002 Mercury Grand Marquis have?
No recalls on record.
What year does the Mercury Grand Marquis have the most acceleration problems?
The Mercury Grand Marquis model years with the most acceleration complaints are 2005 (39 complaints), 2006 (37 complaints) and 1994 (33 complaints).
What gas mileage does the 2002 Mercury Grand Marquis get?
Official estimates for the 2002 Mercury Grand Marquis range from 18 mpg combined. The most efficient version (4.6L 8-cyl, RWD) gets 15 city and 23 highway.
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