RoadVitals

2005 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.
11
Latest Sep 14, 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.
13%
of 82 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.
1
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 2005 Mercury Mountaineer submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 11 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

Body & structureTransmission
Filed Sep 14, 2011

TRANSMISSION JERKING AND JUMPING INTO GEAR, AND REVERSE, ROLL FORWARD IN PARK ON A HILL. LIFTGATE HAS A CRACK AROUND AND UNDER THE SYMBOL. *KB

NHTSA ID
10425349
Incident
Sep 15, 2009
Mileage
45,000 mi
Transmission
Filed Jan 10, 2011

STARTED OUT AS A GOOD CAR. AT ABOUT 48000 MILES IT STARTED TO INTERMITTENTLY REFUSE TO GO INTO FORWARD OR REVERSE WHEN PLACED IN GEAR. MADE SURE IT WAS IN GEAR AND ALSO WOULD MOVE THE SHIFT LEVER OUT OF GEAR AND BACK AGAIN. STEPPING ON THE GAS JUST REVVED UP THE ENGINE. SOMETIMES IT WOULD CATCH AND THE CAR WOULD JUMP FORWARD OR BACKWARD. IT IS PRESENTLY IN A TRANSMISSION SHOP AND APPEARS IT NEEDS TO BE REBUILT. LARGE METAL CHIPS WERE FOUND IN THE OIL PAN. I WAS TOLD BY THE DEALER THAT I DIDN'T HAVE A DRIVE TRAIN WARRANTY, THEY WEREN'T AVAILABLE FOR THE 2005, I ONLY HAD THE 3YEAR 36,000 MILE WARRANT. THE TRANSMISSION SHOP SHOWED ME LARGE CHIPS IN THE OIL PAN. ALSO WHEN DISASSEMBLED THEY COULDN'T FINE WHAT WAS CALLED A NEEDLE PIN, WHICH RUNS THROUGH THE MIDDLE OF THE TRANSMISSION. WITH THAT GONE THE TRANSMISSION WAS GONE. THIS WASN'T A NORMAL OCCURRENCE. SO SELVES, WASHERS/SPACERS, GEARS ETC. SLOWLY WERE BEING DESTROYED. OVERHAUL KIT TORQUE CONVERTOR, PLANETARY ASSY, SOLENOID ASSY., SERVO CASE REPAIR KIT, AND TRANSMISSION FLUID. AND ALL OF THE LATEST PARTS FROM FORDS 6TH UPGRADE ON THIS TRANSMISSION WERE INSTALLED. FORD SHOULD HAVE A RECALL ON THIS TRANSMISSION. REIMBURSEMENT FOR COSTS WOULD BE NICE. BUT THEN I'M A DREAMER, AND BELIEVE CARS ARE BEING BUILT BETTER THAN THEY ARE. AFTER A WEEK OR SO OF DRIVING AND THE SHIFTING STILL NOT SMOOTH AND PARTS BEING SWITCHED OUT. I WAS TOLD IT WOULD BE OKAY TO OUT OF STATE. I GOT ABOUT 70 MILES WHEN THE TRANSMISSION DUMPED THE TRANSMISSION FLUID ON THE HIGHWAY. AFTER A $200 TOW BACK TO THE GARAGE AND ANOTHER WEEK OF SEARCHING FOR THE PROBLEM IT WAS DECIDED IT WAS THE VALVE BLOCK. THE ONLY THING THAT WAS NOT CHANGED. SEEMED THE VALVE BLOCK WAS WARPED. IT WAS REPLACED AND THE CAR IS BACK TO NORMAL. THIS SHOULD NOT BE HAPPENING TO A CAR WITH 48500 MILES ON IT. FORD SHOULD BE ASHAMED OF THEM SELVES FOR PRODUCING A CAR VEHICLE THAT HAS SO MANY TRANSMISSION PROBLEMS. I UNDERSTAND FORD IS NOW ON THE 7TH UPGRADE. *TR

NHTSA ID
10375487
Incident
Sep 4, 2010
Mileage
48,000 mi
Transmission
Filed Oct 14, 2010

2005 MERCURY MOUNTAINEER TRANSMISSION JERKS RANDOM INTERVALS AND CAUSES DRIVER TO LOOSE CONTROL OF VEHICLE MOMENTARILY. PASSENGERS INSIDE CAR EXPERIENCE NECK PAIN AFTER SEVERAL OCCURRENCES. *TR

NHTSA ID
10360402
Incident
Sep 27, 2010
Mileage
60,562 mi
Transmission
Filed Jul 10, 2010

TRANSMISSION LEVER BINDS WHEN ATTEMPTING TO SHIFT INTO PARK, SLIPPING INTO REVERSE INSTEAD. PROBLEM HAS OCCURRED SPORADICALLY FROM 2007 TO DATE. USUALLY THE MISS-SHIFT IS NOTICED BECAUSE IT JUST DOESN'T FEEL RIGHT, BUT NOT ALWAYS. IT CAN BE MOST DANGEROUS IF YOU DON'T TURN OFF THE ENGINE IMMEDIATELY (AFTER ATTEMPTING TO SHIFT INTO PARK) AND TAKE YOUR FOOT OFF THE BRAKE. THAT HAS HAPPENED TO ME ABOUT 5 TIMES OVER 5 YEARS. IT HAPPENED TWICE AT A GAS STATION, ONCE AT A CAR WASH, ONCE IN A SHOPPING CENTER, AND ONCE IN FRONT OF MY HOUSE AS A CHILD WALKED BEHIND THE CAR. IN EACH CASE THE CAR ONLY MOVED 1 OR 2 FEET BEFORE I REALIZED IT, AND WAS ABLE TO STEP ON THE BRAKE. THESE DAYS I DON'T NEED TO WORRY ABOUT IT AS MUCH BECAUSE (AT 52,000 MILES) THE TRANSMISSION TAKES 5 - 10 SECONDS TO ENGAGE THE REVERSE GEAR AND THEN IT BANGS INTO GEAR, LOUDLY ALERTING ME THAT IT DIDN'T GO INTO PARK.. THE TRANSMISSION IS DEFECTIVE, AND FORD KNOWS IT. *TR

NHTSA ID
10342361
Incident
Jul 4, 2010
Mileage
8,000 mi
Transmission
Filed Jan 6, 2010

EXTREMELY HARD SHIFTING INTO REVERSE. SLIPPING IN 3RD GEAR WHEN TRANSMISSION IS RUNNING FOR 15 MINUTES. OVER DRIVE LIGHT FLASHES AND TRANSMISSION FAILS TO WORK WHILE ON HIGHWAY. I HAVE TO SHIFT INTO NEUTRAL TURN THE CAR OFF THEN BACK ON (WHILE AT 65MPH) THEN IT WORKS FINE THE REST OF THE DAY. *TR

NHTSA ID
10298444
Incident
Dec 25, 2009
Mileage
43,000 mi
Transmission
Filed May 28, 2009

TRANSMISSION SLIPPING ON A HILL CAUSING THE VEHICLE TO DRIFT BACKWARDS ALMOST CAUSING AN ACCIDENT WITH THE CAR BEHIND ME. *TR

NHTSA ID
10270253
Incident
May 22, 2009
Mileage
50,001 mi
Powertrain (other)Transmission
Filed Apr 23, 2009

MERCURY MOUNTAINEER 05 WITH LESS THEN 60,000 MILES, I WAS TOLD THAT THERE WAS WEARING IN THE VALVE CASE FROM AUTOMATIC TRANSMISSION WHICH CAUSES TRANSMISSION TO SKIP AND SHIFT HARD AND POP FORWARD, I NEED TO HAVE IT REPAIRED , TRANSMISSION PLACE STATES THIS IS A KNOWN PROBLEM WHICH HAS A TECHNICAL ADVISORY ABOUT IT....WHAT'S MY RECOURSE. *TR

NHTSA ID
10266473
Incident
Apr 1, 2009
Mileage
20,000 mi
Transmission
Filed Mar 7, 2008

THERE IS A TRANSMISSION ISSUE WITH THE MOUNTAINEER OR SOMETHING THAT HAS TO DO WITH THE CAR CHANGING GEARS. MY CAR IS ONLY A WEEK OLD (2005) AND IT JERKS WHEN PLACED IN REVERSE. ONLY HAS 61,000 MILES. OTHER MOUNTAINEER OWNERS HAVE COMPLAINED OF HAVING THE SAME PROBLEM WITH THEIR TRANSMISSION SYSTEM. *TR

NHTSA ID
10220382
Incident
Mar 6, 2008
Transmission
Filed Mar 3, 2008

MINIMAL EVENTS LEAD UP TO TRANSMISSION FAILURE. ODD SHIFTING WHEN ACCELERATING OCCURRED THE DAY OF THE FAILURE AND POSSIBLY SEVERAL TIMES OVERT THE TOW YEARS, BUT VERY INFREQUENTLY. FAILURE OCCURRED AT 74,000 MILES OF PRIMARILY HIGHWAY DRIVING WITH PERHAPS TWO REVERSES A DAY RESULTING AT MOST 2,000 REVERSES FOR THE LIFE OF THE CAR. THE SAME DAY AS SHIFTING PROBLEMS OCCURRED SEVERAL TIMES ON THE WAY HOME REVERSE GEAR WOULD NOT ENGAGE AND AFTER SEVERAL ATTEMPTS WOULD STAY IN GEAR FOR ONLY A FEW SECONDS BEFORE GOING BACK INTO NEUTRAL. NEVER WOULD GO INTO REVERSE AGAIN. FAILURE REQUIRED REPLACEMENT OF THE SOLENOID SHIFTERS AND VALVE BODIES. THIS IS THE SAME FAILURE THAT WAS A CAUSE FOR A RECALL OF SEVERAL PREVIOUS YEAR'S, INCLUDING 2004. *TR

NHTSA ID
10219977
Incident
Dec 13, 2007
Mileage
74,000 mi
Transmission
Filed Aug 4, 2006
Crash reported

2005 MERCURY MOUNTAINEER V6 WITH AWD WAS PLACED IN "PARK" , ENGINE TURNED OFF AND KEY REMOVED FROM IGNITION. THE CAR SLIPPED INTO REVERSE AND ROLLED DOWN DRIVEWAY STRIKING MAILBOXES ACROSS STREET. *JB

NHTSA ID
10164458
Incident
Aug 3, 2006
Mileage
9,302 mi
BrakesSteeringTires & wheels+1 more
Filed Feb 14, 2006

HAD WARPED ROTORS WITHIN FIRST 2,000 MILES. FORD WOULD ONLY GROUND ROTORS BUT DEALER REPLACED THEM AT NO CHARGE. I HAVE ALSO EXPERIENCED A LOUD, THUMPING NOISE WHEN I AM MAKING A SHARP TURN TO LEFT OR RIGHT AT A VERY LOW SPEED. ALSO, OFTEN WHEN PUTTING CAR IN REVERSE MANY TIMES THERE IS A LARGE THUMP AND VEHICLE APPEARS TO SHIFT HARD. FINALLY, WHEN STOPPED ON A STEEP HILL, AFTER REMOVING FOOT FROM BRAKE, VEHICLE ROLLS BACKWARDS MANY TIMES. *JB

NHTSA ID
10150251
Incident
Aug 1, 2005
Mileage
100 mi

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.

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Elsewhere on this vehicle

Data sources

Data on this page last refreshed .