RoadVitals

2000 Mercury Mountaineer Transmission Problems

Owner-reported complaints naming the transmission system, filed with NHTSA

Data refreshed

Transmission reportsComplaints 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.
12
Latest Jul 2, 2011
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
10%
of 123 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
0
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules. Every record below is an owner-reported complaint about the 2000 Mercury Mountaineer submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 12 reports on file name it.

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

Owner reports naming transmission

Shown in the owner’s own words, exactly as filed

Transmission
Filed Jul 2, 2011

I HAVE A 2000 MERCURY MOUNTAINEER THAT STARTED HAVING TRANSMISSION PROBLEMS AT 70K MILES. IT HAS AN AOD TRANSMISSION AND IT WOULDN'T SHIFT INTO GEAR WHEN I WOULD HIT THE GAS TO DRIVE. I TOOK IT INTO THE DEALER I BOUGHT THE SUV FROM AND THEY TOLD ME THAT I WAS LOW ON TRANSMISSION FLUID AND THAT WAS THE PROBLEM SO I HAD THEM FILL THE FLUID. ALMOST IMMEDIATELY IT STARTED GOING THROUGH FLUID AND AT AROUND 85K MILES IT SLOWLY STARTED HAVING THE SHIFTING PROBLEMS AGAIN. NOW IT HARDLY SHIFT AT ALL. I DID SOME RESEARCH AND IT SOUNDS LIKE THERE IS A MAJOR DEFECT IN THE 2000'S TRANSMISSIONS FOR BOTH THE MERCURY MOUNTAINEER AND FORD EXPLORERS. I TRULY BELIEVE THAT FORD SHOULD BE ISSUING A RECALL AND FIX THE PROBLEM. THERE HAVE MANY TIMES WHERE I WAS MERGING INTO ONCOMING TRAFFIC ONLY TO HAVE MY TRANSMISSION FAIL TO ENGAGE AND I'VE ALMOST BEEN BROADSIDED BY THE ONCOMING CAR. HERE IS A WEBSITE THAT TALKS ABOUT THE TRANSMISSION FAILURES: HTTP://WWW.CARCOMPLAINTS.COM/MERCURY/MOUNTAINEER/2002/TRANSMISSION/TRANSMISSION_FAILURE.SHTML PLEASE CHECK IT OUT AND HELP US GET THE PROBLEM FIXED. *TR

NHTSA ID
10410296
Incident
Jun 17, 2011
Mileage
70,000 mi
Transmission
Filed Jan 23, 2010

2000 MERCURY MOUNTAINEER TRANSMISSION FAILURE VEHICLE HAS ONLY 64,000 MILES, TRANSMISSION HAS BEEN POWER FLUSHED BY OUR LOCAL FORD DEALERSHIP WITH NO CORRECTION, WE WERE TOLD THE PROBLEM WAS SHIFT FLARE, WITH THE O/D LIGHT FLASHING IS COMMON WITH ALL 5R55E TRANSMISSIONS WITH 4.0L V6 ENGINES. WE WERE TOLD IT WOULD BE BEST TO REPLACE THE TRANSMISSION WITH A FACTORY REMANUFACTURED UNIT, RATHER THAN TRY TO REPAIR THE OLD TRANSMISSION AT A COST OF $2500.00 TO $3000.00 DOLLARS. WE ARE NOW TO A POINT WHERE WE CANNOT DRIVE THE VEHICLE ANY GREAT DISTANCE OTHER THAN RIGHT AROUND TOWN. ASSISTANCE FROM FORD WOULD BE GREATLY APPRECIATED THIS VEHICLE IS THE FOURTH FORD PRODUCT WE HAVE OWNED, WE NOW HAVE DOUBTS ABOUT OUR 2005 F150 4X4 SUPERCREW WE USE TO PULL OUR 26' TRAVEL TRAILER APPROX 4860LBS. OUR VEHICLE IS IN WONDERFUL CONDITION AND WE DO NOT WANT TO GET RID OF IT, THE MANUFACTURE NEEDS TO STEP UP AND HELP ALL THE LOYAL FORD OWNERS THAT HAVE BELIEVED IN THERE PRODUCTS FOR MANY YEARS. *TR

NHTSA ID
10302016
Incident
Jan 7, 2009
Mileage
59,976 mi
Transmission
Filed Jan 13, 2010

2000 MERCURY MOUNTAINEER TRANSMISSION IS DEFECTIVE. I HAVE HAD TO REPAIR MY TRANSMISSION 3 TIMES NOW. *TR

NHTSA ID
10299684
Incident
Jan 1, 2010
Mileage
70,104 mi
Transmission
Filed Aug 13, 2009

JUST BOUGHT A USED 2000 MERCURY MOUNTAINEER AND THIS MORNING WE EXPERIENCED A PROBLEM WITH THE TRANSMISSION. PUT IT INTO REVERSE AND IT IMMEDIATELY SHUT DOWN AND STARTED TO ROLL BACKWARDS BECAUSE OF BEING ON A SLIGHT INCLINE. PUT IT BACK INTO PARK AND TRIED AGAIN TO HAVE IT HAPPEN AGAIN AND AGAIN. LOOKED UP ON GOOGLE AND NOW FIND THAT THIS SEEMS TO BE AN INHERITED PROBLEM THAT FORD IS NOT ADDRESSING. WHAT IS OUR RECOURSE ON THIS MATTER? *TR

NHTSA ID
10280307
Incident
Aug 13, 2009
Transmission
Filed Nov 27, 2007

TRANSMISSION FAILURE AT 42,000 MILES W/O WARNING WHILE DRIVING AT HIGHWAY SPEEDS! *TR

NHTSA ID
10210121
Incident
Nov 17, 2007
Mileage
42,238 mi
EngineTransmission
Filed Mar 17, 2005

CONSUMER NOTICED AN EXTREME AMOUNT OF FLUID IN THE DRIVEWAY WHICH DID NOT APPEAR TO BE OIL. AFTER TAKING THE VEHICLE TO THE DEALER IT WAS DISCOVERED THAT HEAD GASKET BLEW OUT. CONSUMER HAD THE REPAIRS DONE. LESS THAN TWO MONTHS LATER, WHILE DRIVING , THE GEARS WOULD NOT CONNECT PROPERLY. CONSUMER HAD TO HAVE THE TRANSMISSION REPLACED.*AK

NHTSA ID
10115335
Incident
Jul 13, 2004
Mileage
58,000 mi
Transmission
Filed Jun 4, 2004

WHILE DRIVING AT LOW SPEEDS, THE VEHICLE DOWN SHIFTED TO LOW RANGE. *AK THE 4WD AND OVERDRIVE LIGHTS WHERE FLASHING AND WHINING ALONG WITH AN ALARM SOUND COMING FROM THE DASH. THE ENGINE WAS SHUT OFF AND THE KEY WAS REMOVED, BUT THE WHINING SOUND CONTINUED. *SC THE CONSUMER DISCONNECTED THE BATTERY AND THE NOISE STOPPED. *JB

NHTSA ID
10071723
Incident
Apr 9, 2004
Mileage
57,000 mi
Transmission
Filed Apr 1, 2004

WHEN ACCELERATING, THE DRIVER HEARD A KNOCKING NOISE AND THE VEHICLE LOST ACCELERATION. *AK THE VEHICLE BUCKED AND BANGED INTO GEAR, THE OVER DRIVE LIGHT FLASHED. *JB

NHTSA ID
10057981
Incident
May 12, 2001
Transmission
Filed Mar 10, 2003

2000 MERCURY MOUNTAINEER DIAGNOSED WITH TRANSMISSION FAILURE - SLIPPING BETWEEN 2ND & 3RD GEARS. VEHICLE ONLY HAS 50000 MILES.*JB

NHTSA ID
10010232
Incident
Mar 6, 2003
Mileage
50,500 mi
Driver assistanceTransmission
Filed Dec 5, 2000

AT 25 MPH WHILE APPLYING GAS PEDAL, ENGINE REVVED, BUT VEHICLE SLOWED DOWN INSTEAD. TOOK TO DEALER WHO FOUND TRANSMISSION NEEDED TO BE REPLACED. FORD WILL REPLACE IT WITH REMANUFACTURED TRANSMISSION. *AK TRAVELING AT 30-40 MPH, THE TRANSMISSION SLIPPED BADLY. *YH

NHTSA ID
875997
Incident
Nov 25, 2000
Driver assistanceTransmission
Filed Dec 5, 2000

AT 25 MPH WHILE APPLYING GAS PEDAL, ENGINE REVVED, BUT VEHICLE STARTED TO SLOW DOWN INSTEAD. TOOK VEHICLE TO DEALER WHO FOUND THAT TRANSMISSION NEEDED TO BE REPLACED. FORD REPLACED IT WITH REMANUFACTURED TRANSMISSION. *AK AT A SPEED OF 30 TO 40 MPH, THE TRANSMISSION SLIPS AND WAS REPLACED. *YH

NHTSA ID
875996
Incident
Nov 25, 2000
Transmission
Filed Oct 1, 2000

VEHICLE ROLLS BACKWARD ON EVEN THE SLIGHTEST INCLINE WHILE IN DRIVE. THIS APPEARS TO BE A SAFELY HAZARD AS AUTOMATIC TRANSMISSION VEHICLES SHOULD NOT ROLL BACKWARD. THE DEALERSHIP'S SERVICE DEPARTMENT HAS REFUSED TO DO ANYTHING AS THEY SAY THIS IS HOW THE TRUCKS NORMALLY WORK.*AK

NHTSA ID
733093
Incident
Jun 15, 2000

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.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .