RoadVitals

2004 Mercury Mountaineer

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
210
Latest Jun 21, 2021
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
1
Latest Dec 11, 2007
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
3
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
13
16 injuries, 0 deaths reported

Overview

Our database contains 210 NHTSA owner-reported complaints for the 2004 Mercury Mountaineer, most frequently naming the body & structure, transmission and powertrain (other) categories. 1 safety recall has been issued covering this model year; 3 NHTSA investigations name it; and 103 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

1 campaign cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov

VISIBILITY:GLASS, SIDE/REAR

Dec 11, 2007
1,657 units potentially affected
The defect: CERTAIN CURVED TEMPERED REPLACEMENT GLASS MANUFACTURED BY HANGZHOU SAFETY GLASS LTD AND SUPPLIED TO SAFELITE BY AUTO TEMP INC., IDENTIFIED AS DOT-430, AND SOLD FOR USE ON CERTAIN DOMESTIC AND FOREIGN VEHICLES MAY NOT BREAK INTO SMALL PIECES AS EXPECTED OF TEMPERED GLASS AND FAILS TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 205, "GLAZING MATERIALS."
The risk: IN THE EVENT OF A VEHICLE CRASH, THE OCCUPANT(S) MAY BE SERIOUSLY INJURED BY SHATTERED GLASS.
The remedy: SAFELITE WILL NOTIFY ITS RETAIL CUSTOMERS AND REPLACE THE GLASS FREE OF CHARGE. RETAIL CUSTOMERS CAN CONTACT SAFELITE TOLL FREE AT 1-888-843-2906. SAFELITE WILL NOTIFY ITS WHOLESALE CUSTOMERS AND REIMBURSE WHOLESALE CUSTOMERS FOR CURRENT INVENTORY AND AT A SPECIFIED RATE FOR REPLACING THEIR CUSTOMER'S GLASS. WHOLESALE CUSTOMERS CAN CONTACT SAFELITE'S WHOLESALE DIVISION, SERVICE AUTOGLASS TOLL FREE AT 1-888-246-6298. THE RECALL BEGAN ON JANUARY 15, 2008.
SAFELITE FULFILLMENT, INC.View on NHTSA.gov

Safety investigations

NHTSA inquiries naming this vehicle. An investigation is not a finding of a defect.

EA09013ClosedEngineering Analysis

Vehicle Rollaway Allegations

Opened Aug 18, 2009
Closed Feb 12, 2013

This investigation is being closed based on several considerations.By the most inclusive counting of all alleged rollaway incidents (i.e., counting all alleged rollaway incidents and assuming a singular failure mechanism), the incident rate is low, however during EA09-013, ODI identified a number of different failure mechanisms in 180 incidents related to the alleged defect.The highest rate for any particular failure mechanism, the failure of the Automatic Transmission Parking System, was 4.4/100K.The next-highest failure rate was for the BSI System, at 3.4/100K.For all identified failure mechanisms there has been a drastically declining trend including very few incidents occurring in recent years.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.For additional information regarding this investigation, see the complete closing resume in the document file for EA09-013. The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) numbers:10168454, 10279630, 10280078.

POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)
RQ08003ClosedRecall Query

REAR LIFTGATE GLASS HATCH FAILURE

Opened Jun 23, 2008
Closed Oct 24, 2008

THIS INVESTIGATION WAS OPENED ON JUNE 23, 2008, BASED ON 34 COMPLAINTS INVOLVING EIGHT INJURIES IN WHICH THE REAR LIFTGATE GLASS HATCH ON MODEL YEAR 2004 FORD EXPLORERS OR MERCURY MOUNTAINEERS BROKE OFF AND FELL, USUALLY WHILE INDIVIDUALS WERE OPERATING THE GLASS HATCH OR LOADING OR UNLOADING ITEMS FROM THE REAR OF THE VEHICLE.FORD CONDUCTED RECALL 04V-442 IN 2004 TO ADDRESS SIMILAR PROBLEMS ON MODEL YEAR 2002 AND CERTAIN MODEL YEAR 2003 FORD EXPLORERS AND MERCURY MOUNTAINEERS.THE INFORMATION FORD PROVIDED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER INDICATED THAT FAILURES WITH 2004 VEHICLES WERE PRIMARILY LIFTGATE GLASS HATCH HINGE FAILURES RELATED TO CORROSION AT THE HINGE PIN, WHEREAS THE FAILURES THAT PROMPTED THE RECALL WITH THE EARLIER MODELS WERE PRIMARILY RELATED TO PROBLEMS WITH THE GLASS HATCH'S STRUTS OR FRACTURE OF A PRIOR HINGE DESIGN AT THE BOSS/BOLT CONNECTION AT THE GLASS.ODI'S REVIEW OF FORD'S WARRANTY, COMPLAINT, AND INJURY DATA FOR THE 2004 VEHICLES INDICATES THAT THESE RATES ARE SIGNIFICANTLY LOWER THAN THOSE FOR THE RECALLED POPULATION.A POTENTIAL DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.ODI WILL CONTINUE TO MONITOR COMPLAINTS AND TAKE APPROPRIATE ACTION AS NECESSARY.THIS INVESTIGATION IS CLOSED.

STRUCTURE:BODY:HATCHBACK/LIFTGATE
DP05005ClosedDefect Petition

SPARK PLUG EJECTION FROM CYLINDER HEAD

Opened Sep 22, 2005
Closed Jan 4, 2006

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 NHTSA 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 NHTSA?S LIMITED RESOURCES TO BEST ACCOMPLISH THE AGENCY?S SAFETY MISSION, THE PETITION IS DENIED.

ENGINE AND ENGINE COOLING:ENGINE

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Transmission
Filed Jun 21, 2021

This vehicle is has a power train problem from day one with the 5R55S/W transmission and AWD transfer case. I purchased this vehicle where it stranded my family over 200 miles from home and it's a non running car. This vehicle should have been removed from being sold with this defect and crushed! I will never buy a FoundOnRoad Dead ford pos ever. The transmission went into neutral with out any notice. To repair the faulty drive train I will cost me aprox $2400.00 mileage 152,000 third time the drive train has been worked on.. There tranmissions were failing in a little as 50,000 miles.

NHTSA ID
11421672
Incident
Aug 19, 2020
Electrical
Filed May 2, 2019

MY WINDOWS WERE ROLLING DOWN WHEN I FIRST THEN ALL OF A SUDDEN STOPPED ROLLING DOWN

NHTSA ID
11205264
Incident
Dec 18, 2018
AirbagsSteering
Filed Jan 6, 2019

TAKATA RECALL AIR BAG LIGHT STAYS ON FOR NO APPARENT REASON... ALL THE TIME GRINDING NOISES WHILE TURNING LEFT OR RIGHT SOUNDS LIKE GEARS ARE FREELY SPINNING WHILE ENGAGED AND DRIVING. NO ISSUES WITH CHANGING GEARS AS FAR AS MECHANIC SAYS.

NHTSA ID
11165492
Incident
Dec 10, 2018
Body & structure
Filed Sep 7, 2018

OPERATING THE TAILGATE WINDOW HINGES BROKE OFF SCREWS APPEARED TO HAVE SEVERE CORROSION VEHICLE WAS STATIONARY

NHTSA ID
11128025
Incident
Sep 6, 2018
Mileage
149,674 mi
Suspension
Filed Mar 28, 2018

HUMMING IN FRONT AT ALL SPEEDS FT WHEEL BEARINGS WHERE BAD. NOW RIGHT REAR BEARING MAKING NOISE. VERY LOOSE . LOTS OF OTHER COMPLAINTS ONLINE NEED TO BE LOOKED AT

NHTSA ID
11081868
Incident
Mar 27, 2018
Mileage
90,000 mi
Body & structureElectricalOther / unspecified
Filed Dec 11, 2017

1. PAINT COMING OFF OF ROOF AND DRIVER'S DOOR. 2. REAR PASSENGER SIDE AND DRIVER SIDE POWER WINDOWS NOT WORKING. 3. CRACKS IN PLASTIC AREA OF REAR LIFT GATE AROUND WIPER ARM. 4. ALMOST LOST CONTROL AND POTENTIAL ACCIDENT ON INTERSTATE WHEN RIGHT REAR WHEEL CAME LOOSE.

NHTSA ID
11053938
Incident
Oct 5, 2017
Mileage
135,000 mi
Filed Jul 6, 2017

THIS WAS VERY DANGEROUS!! RIGHT HINGE BROKE WHICH DROPPED RIGHT SIDE OF GLASS PUTTING PRESSURE ON THE GLASS WHICH MADE IT EXPLODE. GLASS COVERED ME WITH A FEW MINIMAL CUTS

NHTSA ID
11003324
Incident
Jul 5, 2017
Mileage
190,000 mi
Airbags
Filed Dec 12, 2016
Crash reported1 injury reported

MY SON WAS DRIVING TO WORK ON AUGUST 6, 2015. SOMETHING HAPPENED, AND HE RAN OFF THE ROAD AND HIT A TREE. AT THAT POINT THE AIRBAG COVER FLEW TOTALLY OFF, INSTEAD AND FALLING DOWN AS IT IS SUPPOSED TO. THE COVER ITSELF GASHED MY SONS FOREHEAD FROM LEFT TO RIGHT, AND HE LOST HIS RIGHT EYE. THIS IS A TERRIBLE ACCIDENT. THE AIRBAGS CAME OUT SO FAST THAT THEY HAD BURN MARKS ON THEM. THESE AIRBAGS WERE SUPPOSED TO SAVE PEOPLES LIVES INSTEAD OF MANGLING THEIR FACES. SOMEONE NEEDS TO BE RESPONSIBLE FOR THIS HORRIFIC ACT....01/04/17 *BF *TR *CN

NHTSA ID
10934845
Incident
Aug 6, 2016

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

TSB 19-2026

EQUIPMENT; STRUCTURE

Some 2000 and newer Ford, Lincoln and Mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust. Panel replacement is recommended. Follow the Service Procedure steps to correct the condition

TSB 19-2026

STRUCTURE

Some 2000 and newer Ford, Lincoln and Mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust. Panel replacement is recommended. Follow the Service Procedure steps to correct the condition

SSM 46085

ENGINE; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; ENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

The Powertrain Control/Emissions Diagnosis (PC/ED) manual has been revised for diagnosing electronic throttle bodies (ETBs). The ETC_ACT and ETC_DSD PIDs should not used to diagnose possible ETB concerns. The IDS has a limited refresh rate when reading these PIDs and cannot display quickly enough to validate a concern. The PCM automatically monitors these inputs more accurately and will set diagnostic trouble codes (DTCs) when appropriate. Using these PIDs for diagnostics will lead to inaccurate results and improper ETB replacements. If a concern is intermittent and no DTCs are present, refer to historical DTCs and the PC/ED, Section 3 No DTCs Present Index chart for further information.

TSB-12-7-4

ENGINE

FORD/LINCOLN/MERCURY: IF BATTERY WAS DISCONNECTED OR DEAD, VEHICLES/TRUCKS MAY EXPERIENCE HARD STARTS AND ENGINE IDLE RPM FLUCTUATION AND EXHIBIT DIAGNOSTIC TROUBLE CODES (DTCS) P0505, P0506, P2111 AND P2112. *PE

TSB-08-19-3

POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT; POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL

FORD: SOME VEHICLES MAY EXHIBIT OIL SEPARATION FROM THE INTERNAL LUBE FOUND IN THE UNITIZED CARTRIDGE SEAL. OIL SEPARATION APPEARS TO BE AND IS OFTEN MISDIAGNOSED, AS AN AXLE LUBE LEAK. *PE

07212

ENGINE AND ENGINE COOLING:ENGINE

SOME 1997-2008 VEHICLES EQUIPPED WITH A 4.6L 2V, 5.4L 2V, OR 6.8L 2V ENGINE--SPARK PLUG THREAD REPAIR PROCEDURE--NOT COVERED UNDER NEW VEHICLE LIMITED WARRANTY. *NJ THIS INCLUDES F-53 MOTORHOME CHASSIS. UPDATED 2/23/10. *PE

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Mercury Mountaineer by model year
YearComplaintsRecallsInvestigationsIssue Index
2011000
2010131135.8
2009600
2008962148.8
2007811140.8
20061172047.3
2005821142.8
2004Viewing2101350.3
20031521249.1
20023724561.2
2001224261.0
20001238264.1
19991519463.3
19982366768.5
19973287465.4
1996320
1995000
1994000
1993000
1992000
1991000

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.