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2005 Mercury Mountaineer

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2005 Mercury Mountaineer do not stand out strongly from the model-year median of 117.

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When problems were reported

Mileage at the reported incident

69 reports with mileage · 13 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Structure. Review the 26 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 19 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Vehicle Speed Control. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

6 crash reports0 fire reports1 injury reports

Engine complaints

7 reports
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Mileage unknown · Aug 10, 2022
EnginePower TrainVehicle Speed Control

started losing power ,did not want to go pas 30 miles per hr ,then it ramed up and came to a stop with no acceleration ,i shut it off then start it again and was able to get home at a low rate of speed while continuing to have these problems, another day while far away from home the engine rammed up again minimizing my speed as …

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started losing power ,did not want to go pas 30 miles per hr ,then it ramed up and came to a stop with no acceleration ,i shut it off then start it again and was able to get home at a low rate of speed while continuing to have these problems, another day while far away from home the engine rammed up again minimizing my speed as the transmission was slipping and not go fast then my O/D over drive went on flashing a light ,while the engine kept steady at 20-30 miles per hour while accelerating increasing no speed ,now my SUV will not run wright, it will kick into gear at times constantly and cause problems driving safely ,this is a common problem I'm hearing and reading in the internet with the ford/ mercury mountaineer the manufactory does not want to accept responsibility with this problem ..... this is clear a RECALL ISSUE that needs to be addressed before someone gets killed on the highway by getting rammed by a semi-truck which it almost happened to me !!!! a multi-million dollar law suit is in order if they do not acknowledge and fix this problem

NHTSA ODI #11478634

90,000 miles · Dec 21, 2016
Engine

ON TWO OCCASIONS THE ENGINE CUT OUT WHILE DRIVING THE CAR, ALL THE ENGINE WARNING LIGHTS CAME ON. ONCE THE CAR WAS SAFELY OFF THE ROAD AND PLACED IN PARK IT WOULD START AND CONTINUE TO OPERATE. THE FORD DEALER SAID THAT THERE WAS NOT FAULT CODE IN THE COMPUTER, THEY COULD NOT DUPLICATE THE FAILURE AND COULD NOT FIND ANY FAULT IN…

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ON TWO OCCASIONS THE ENGINE CUT OUT WHILE DRIVING THE CAR, ALL THE ENGINE WARNING LIGHTS CAME ON. ONCE THE CAR WAS SAFELY OFF THE ROAD AND PLACED IN PARK IT WOULD START AND CONTINUE TO OPERATE. THE FORD DEALER SAID THAT THERE WAS NOT FAULT CODE IN THE COMPUTER, THEY COULD NOT DUPLICATE THE FAILURE AND COULD NOT FIND ANY FAULT IN THE ENGINE SYSTEM. FORD SERVICE REPRESENTATIVES SAID I SHOULD GO A DIFFERENT FORD DEALER AND SEE IF THEY COULD SOLVE THE PROBLEM. I FIND SIMILAR ENGINE FAILURES DOCUMENTED ON THE INTERNET FOR THIS GENERATION OF CAR. MORE CURRENT SIMILAR MODEL ARE NOT REPORTED TO HAVE THIS PROBLEM. THUS I ASSUME FORD FOUND AND FIXED THIS PROBLEM. I ASKED THEM TO TELL ME HOW THEY SOLVED THE PROBLEM, THEY SAID THAT WAS NOT POSSIBLE. SO, I HAVE AN OTHERWISE GOOD CAR WHICH I CAN DO USE NOR IN GOOD CONSCIENCE SELL TO SOMEONE ELSE. PLEASE HELP! *TR

NHTSA ODI #10936824

128,000 miles · Oct 10, 2015
EnginePower TrainService Brakes

WHILE DRIVING 50 MPH VEHICLE STALLED THREE TIMES. TOOK IT TO A GARAGE, WAS TOLD IT WAS NECESSARY TO HAVE THE VEHICLE WHEN IT STALLED. FOUND ELEVEN (11) SIMILAR COMPLAINTS ON YOUR SITE! PERHAPS THERE IS SOME VALIDITY TO THE COMPLAINTS. ALL PARTS OF THE VEHICLE RELATED TO SAFE DRIVING WERE RENDERED USELESS. SOUNDS LIKE A SAF…

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WHILE DRIVING 50 MPH VEHICLE STALLED THREE TIMES. TOOK IT TO A GARAGE, WAS TOLD IT WAS NECESSARY TO HAVE THE VEHICLE WHEN IT STALLED. FOUND ELEVEN (11) SIMILAR COMPLAINTS ON YOUR SITE! PERHAPS THERE IS SOME VALIDITY TO THE COMPLAINTS. ALL PARTS OF THE VEHICLE RELATED TO SAFE DRIVING WERE RENDERED USELESS. SOUNDS LIKE A SAFETY ISSUE TO ME!

NHTSA ODI #10781265

41,000 miles · Jul 27, 2015
Engine

MY TRANSMISSION WENT ONLY AFTER 1 YEAR OF HAVING CAR, SPEND OFVER $3,000 FOR A NEW TRANSMISSION AND NOW THE TRANSMISSION IS GOING AGAIN. THIS IS UNACCEPTABLE. I DON'T EVEN DRIVE THAT MUCH.

NHTSA ODI #10743667

126,000 miles · Jun 26, 2015
Engine

TL* THE CONTACT OWNS A 2005 MERCURY MOUNTAINEER. WHILE DRIVING AT APPROXIMATELY 50 MPH, THE ENGINE STALLED WITHOUT WARNING. THE CONTACT WAS ABLE TO RESTART THE VEHICLE. THE FAILURE RECURRED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 126,000.…

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TL* THE CONTACT OWNS A 2005 MERCURY MOUNTAINEER. WHILE DRIVING AT APPROXIMATELY 50 MPH, THE ENGINE STALLED WITHOUT WARNING. THE CONTACT WAS ABLE TO RESTART THE VEHICLE. THE FAILURE RECURRED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 126,000. THE VIN WAS NOT AVAILABLE. ...UPDATED 07/30/15 *BF

NHTSA ODI #10730530

141,000 miles · Oct 21, 2014
Engine

AS I WAS DRIVING THE VEHICLE JUST DIED; ALL THE WARNING LIGHTS CAME ON AND AS I WAS LOSING SPEED I PULLED OVER TO CURB THE BEST I COULD. RESTARTED CAR AND IT SEEMED TO RUN FINE BUT HAPPENED AGAIN 20 MINUTES LATER. THIS HAS ALSO HAPPENED 2 OTHER TIMES WITHIN THE LAST 10,000 MILES OF DRIVING. *TR

NHTSA ODI #10649043

105,000 miles · Jul 9, 2014
EngineVehicle Speed Control

THE ENGINE HAS SHUT OFF TWICE WHILE DRIVING USING CRUISE CONTROL. THE FIRST TIME I WAS ABLE TO GET TO THE SIDE OF ROAD AND RESTART IT.. THE SECOND TIME I PUT IT IN NEUTRAL AND RESTARTED IT WHILE MOVING. I AM AFRAID TO USE THE CRUISE CONTROL NOW - IF THERE HAD BEEN ONCOMING TRAFFIC WE WOULD'VE HAD A HEAD-ON COLLISION AS I WAS …

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THE ENGINE HAS SHUT OFF TWICE WHILE DRIVING USING CRUISE CONTROL. THE FIRST TIME I WAS ABLE TO GET TO THE SIDE OF ROAD AND RESTART IT.. THE SECOND TIME I PUT IT IN NEUTRAL AND RESTARTED IT WHILE MOVING. I AM AFRAID TO USE THE CRUISE CONTROL NOW - IF THERE HAD BEEN ONCOMING TRAFFIC WE WOULD'VE HAD A HEAD-ON COLLISION AS I WAS ON A CORNER AND WENT INTO THE OTHER LANE. WHEN THE ENGINE SHUTS OFF, THE POWER STEERING IS GONE LEAVING IT VERY DIFFICULT TO TURN. *TR

NHTSA ODI #10609479

Official recalls

0

No recalls in this snapshot.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

1

EA09013 · Vehicle Rollaway Allegations

Opened Aug 18, 2009 · Closed Feb 12, 2013

Status: closed (inferred from source dates) · Power Train:automatic Transmission:gear Position Indication (prndl); Power Train:automatic Transmission:lever And Linkage:column Shift; Steering; Steering:column; Steering:column LOCKING:ANTI-THEFT Device

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.

Additional source detail variants (5)

Power Train:automatic Transmission:gear Position Indication (prndl)

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:lever And Linkage:column Shift

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.

Steering:column

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.

Steering:column LOCKING:ANTI-THEFT Device

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.

Steering

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.