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U.S. public vehicle records

2004 Mercury MOUNTAINEER problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

210 owner complaints analyzed

0 distinct recall campaigns

69,449 mi median reported failure mileage

Scope: 2004 model year. Data snapshot: . 181 complaints include usable failure mileage.

Owner-reported patterns

Most common problems

Structure:Body is the most frequently named component, appearing in 39 of 210 complaints (18.6%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Transmission and shifting5325.2%
Braking behavior2110.0%
Engine operation178.1%
Steering behavior157.1%
Electrical and battery issues94.3%
Fuel system concerns21.0%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Structure:Body
39
Power Train:Automatic Transmission
36
Power Train
21
Structure:Body:Hatchback/Liftgate
18
Vehicle Speed Control
18
Electrical System
14
Structure:Body:Hatchback/Liftgate:Hinge And Attachments
14
Air Bags
9
Component breakdown data
CategoryCount
Structure:Body39
Power Train:Automatic Transmission36
Power Train21
Structure:Body:Hatchback/Liftgate18
Vehicle Speed Control18
Electrical System14
Structure:Body:Hatchback/Liftgate:Hinge And Attachments14
Air Bags9

Structure:Body: 39; Power Train:Automatic Transmission: 36; Power Train: 21; Structure:Body:Hatchback/Liftgate: 18; Vehicle Speed Control: 18; Electrical System: 14; Structure:Body:Hatchback/Liftgate:Hinge And Attachments: 14; Air Bags: 9

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
23
25,000 to 49,999
37
50,000 to 74,999
43
75,000 to 99,999
36
100,000 to 149,999
32
150,000 and above
10
Reported problems by failure mileage data
CategoryCount
Under 25,00023
25,000 to 49,99937
50,000 to 74,99943
75,000 to 99,99936
100,000 to 149,99932
150,000 and above10

Under 25,000: 23; 25,000 to 49,999: 37; 50,000 to 74,999: 43; 75,000 to 99,999: 36; 100,000 to 149,999: 32; 150,000 and above: 10

50,000 to 74,999 miles has the most reports with usable mileage (43). 29 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2004
12
2005
11
2006
6
2007
16
2008
27
2009
20
2010
24
2011
23
2012
10
2013
18
2014
23
2015
5
2016
8
2017
2
2018
2
2019
2
2021
1
Complaints over time data
CategoryCount
200412
200511
20066
200716
200827
200920
201024
201123
201210
201318
201423
20155
20168
20172
20182
20192
20211

2004: 12; 2005: 11; 2006: 6; 2007: 16; 2008: 27; 2009: 20; 2010: 24; 2011: 23; 2012: 10; 2013: 18; 2014: 23; 2015: 5; 2016: 8; 2017: 2; 2018: 2; 2019: 2; 2021: 1

Pattern summary

Structure:Body leads the component reports. Transmission and shifting appears in 53 complaint narratives. Braking behavior appears in 21 complaint narratives. Engine operation appears in 17 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 10086236 · 2004-08-05 (August 5, 2004)

WHILE DRIVING AT 35 MPH AND ABOVE EXPERIENCED NOISE IN TRANSMISSION CHAIN. RETURNED TO DEALER AND THEY ARE ORDERING A GEAR FOR THE RWEAR END. AM AWAITING APPROX A WEEK FOR DELIVERY TO SCHEDULE THE REPLACEMENT OF THE GEAR.*AK

Owner-reported narrative. 5,000 miles reported. Look up ODI 10086236 at NHTSA ↗

Owner report 10099434 · 2004-12-07 (December 7, 2004)

WHEN APPLYING THE ACCELERATOR PEDAL FROM A STOP POSITION IT CAUSED A MOMENTARY PULSE BEFORE THE VEHICLE WENT INTO MOTION. VEHICLE HAD BEEN TO THE DEALER ON NUMEROUS OCCASIONS, AND THEY WERE UNABLE TO LOCATE THE PROBLEM. *AK THE CONSUMER STATED THAT THE PAUSE WAS SO SEVERE THAT IT JERKS ALL PASSENGERS HEADS . THE VEHICLE ALSO HAD TRANSMISSION PROBLEMS. THE TRANSMISSION HAD A HARSH SHIFT AND CLUNK WHEN GOING INTO REVERSE OR DRIVE. THE TRANSMISSION HAS BEEN REPAIRED. *TC

Owner-reported narrative. 1,424 miles reported. Look up ODI 10099434 at NHTSA ↗

Owner report 10117113 · 2005-03-30 (March 30, 2005)

CONSUMER COMPLAINED ABOUT A BRAKE PROBLEM. WHEN APPLYING THE BRAKES PEDAL SANK IN INTERMITTENTLY. VEHICLE WAS TAKEN TO DEALER FOR SERVICE, BUT DEALER COULD NOT DUPLICATE THE PROBLEM. *AK

Owner-reported narrative. Look up ODI 10117113 at NHTSA ↗

Owner report 10127124 · 2005-08-19 (August 19, 2005)

DT:THE CONSUMER STATED DURING BRAKING THE VEHICLE STALLS. WHEN THE CVONSUMER WENT TO RESTART AND PUT IT IN DRIVE IT STALLED AGAIN. TOOK VEHICLE TO THE SERVICE DEPARTMENT 3 TIMES. THE SECOND TIME THEY REPLACED THE FUEL PUMP, THE FIRST TIME THEY UPDATED THE ENGINE CONTROLLER SOFTWARE.*AK FOR THE 4TH TIME TOTAL LOSS OF VEHICLE POWER WHEN BRAKING FROM 55 MPH. DEALER REPLACED MAF SENSOR. DRIVER REAR DOOR MOLDING CATCHING FRONT DOOR MOLDING AT TIMES WHEN OPENING. *TT

Owner-reported narrative. 15,000 miles reported. Look up ODI 10127124 at NHTSA ↗

Owner report 10096746 · 2004-11-03 (November 3, 2004)

THE VEHICLE STALLS INTERMITTENTLY. THE CONSUMER HAS TAKEN THE VEHICLE TO THE DEALER AND WAS TOLD THAT THE PROBLEM DID NOT DUPLICATE ITSELF. *JB *SC

Owner-reported narrative. 18,100 miles reported. Look up ODI 10096746 at NHTSA ↗

Owner report 10120867 · 2005-05-13 (May 13, 2005)

WHILE DRIVING OUR 2004 MERCURY MOUNTAINEER, ALL OF THE SUDDEN IT WILL STALL AND A LIGHT WILL COME ON SHOWING "ENGINE FAIL SAFE MODE". THERE IS NO POWER AT ALL AND THE CAR NEEDS A FEW MINUTES BEFORE STARTING UP AGAIN. THIS HAS HAPPENED 3 TIMES NOW AND ALL IN TRAFFIC. WE HAVE HAD TO PRAY THAT WE WOULD NOT BE HIT OR WORSE YET, KILLED. WE HAVE TAKEN IT TO THE DEALERDHIP TWICE NOW (THE 1ST TIME THEY SAID IT WAS BAD GAS AND SENT US ON OUR WAY) AND ALL THEY CAN SAY THE LAST TWO TIMES IS "WE CAN'T DUPLICATE THE PROBLEM". THIS IS VERY UNSAFE AND WE ARE…

Owner-reported narrative. 38,000 miles reported. Look up ODI 10120867 at NHTSA ↗

Owner report 10216045 · 2008-01-25 (January 25, 2008)

DRIVER SETS CRUISE CONTROL AT 35MPH VEHICLE SPEED IS AT 35MPH FOR ABOUT 90 SECS. SUDDENLY VEHICLE'S WARNING LIGHTS COME ON. (SERVICE ENGINE SOON. BATTERY ALERT. LOW OIL PRESSURE ALERT , AND TEMP. ALERT ) VEHICLE LOSES ALL POWER. NO BRAKES, STEERING LOCKS UP, NO POWER. DRIVER (BY THE GRACE OF GOD) BRINGS VEHICLE TO SIDE OF ROAD RIGHT BEFORE A T IN THE ROAD. VEHICLES AT THE INTERSECTION CAN BE TRAVELING AT 45MPH. THERE WAS A SCHOOL BUS APPROACHING AS WELL. DRIVER TURNED ON HAZARD LIGHTS. DRIVER PHONES HUSBAND. HE HAD O…

Owner-reported narrative. 52,640 miles reported. Look up ODI 10216045 at NHTSA ↗

Owner report 10231943 · 2008-06-22 (June 22, 2008)

WHEN USING THE CRUISE CONTROL THE VEHICLE DIED: ALL GAUGE LIGHTS CAME ON (BATTERY, ENGINE, ETC.) ENGINE DIED, NO POWER STEERING, ETC. HAD TO ROLL TO THE SIDE OF THE ROAD, PUT VEHICLE IN PARK OR NEUTRAL AND RESTART. THIS PROBLEM REPEATS ITSELF EVER TIME I USE THE CRUISE CONTROL. AND, I SEE THERE ARE OTHER OWNERS OF THIS MODEL THAT HAVE POSTED THE SAME COMPLAINT. PROBLEM FIRST OCCURRED IN JANUARY OF 2008 HOWEVER CONTINUES TODAY. FORTUNATELY WHEN THE ENGINE HAS DIED EVERY TIME I HAVE USED THE SPEED CONTROL IT HAS NOT CAUSED AN ACCIDENT.... Y…

Owner-reported narrative. 44,000 miles reported. Look up ODI 10231943 at NHTSA ↗

Owner report 10186320 · 2007-03-27 (March 27, 2007)

AFTER NOT DRIVING MY VEHICLE FOR 2 DAYS THE BATTERY LEVEL IS LOW, THE RED INDICATOR LAMP ON BATTERY IS SHOWING, AND MY VEHICLE WILL NOT TURN OVER. I CONNECT MY JUMP-IT AND IT STARTS RIGHT UP. I HAVE TAKEN IT IN TO MIDLAND FORD SEVERAL TIMES AND THEY TELL ME THAT THEY CANNOT FIND ANYTHING WRONG WITH MY VEHICLE AND THEY CANNOT REPLACE ANY PARTS UNLESS THEY CAN FIND A PROBLEM. THEY WANT ME TO LEAVE MY VEHICLE THERE FOR AT LEAST TWO DAYS TO TRY TO REPLICATE THE PROBLEM, BUT REFUSE TO PROVIDE A REPLACEMENT VEHICLE OR RENTAL CAR OR I HAVE THE OPTI…

Owner-reported narrative. Look up ODI 10186320 at NHTSA ↗

Owner report 10190705 · 2007-05-14 (May 14, 2007)

TL*THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. WHILE DRIVING IN REVERSE AND SHIFTING GEARS, THE VEHICLE HESITATED. THE CRUISE CONTROL ENGAGED WITHOUT WARNING AND THE VEHICLE STALLED WHILE DRIVING 75MPH. THE SERVICE MANAGER DROVE WITH THE CONTACT AND OBSERVED THE FAILURE; HOWEVER, HE STATED THAT THE VEHICLE WAS OPERATING NORMALLY. THE ACCELERATOR ALSO DOES NOT ENGAGE PROPERLY WHEN INCREASING SPEED. THE DEALER STATED THAT THE ELECTRICAL BRAIN FAILED AND ATTEMPTED TO REPAIR IT ON TWO OCCASIONS. AN EXPERT FROM OUT OF STATE ALSO INSPECTED THE…

Owner-reported narrative. 5 miles reported. Look up ODI 10190705 at NHTSA ↗

Owner report 10259704 · 2009-02-23 (February 23, 2009)

OUR VEHICLE WAS PURCHASED IN JUNE 2008 AT DEALERSHIP NEARBY. WE WERE DRIVING HOME AND THERE WAS A GRINDING AND POPPING SOUND IN THE REAREND OF THE VEHICLE. IT WAS ME , MY HUSBAND, 3 MTH OLD AND 2 YR OLD OCCUPYING THE CAR. MY HUSBAND GOT OUT OF THE CAR AND STATED TO GET THE BABIES OUT OF THE CAR IN A HURRY IT WAS ON FIRE. WE GOT THE BABIES OUT AND RAN IN TO CALL 911 AND THE FIRE DEPT. THE FIRE WAS CONTAINED AND TOOK TO A LOCAL GARAGE AT THAT TIME I CONTACTED MY AUTO INSURANCE TO SEE IF THIS WAS SOMETHING THAT WOULD BE COVERED. THEY SENT AN AUTO…

Owner-reported narrative. 66,000 miles reported. Look up ODI 10259704 at NHTSA ↗