RoadVitals

2008 Mercury Mariner Powertrain (other) Problems

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

Data refreshed

Powertrain (other) 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.
55
Latest Mar 4, 2025
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.
12%
of 461 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

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials. Every record below is an owner-reported complaint about the 2008 Mercury Mariner submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 55 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 powertrain

The 25 most recent of 55, in the owner's own words

Powertrain (other)
Filed Mar 4, 2025

The contact owns a 2008 Mercury Mariner. The contact stated while at a stop sign, the vehicle failed to accelerate upon depression of accelerator pedal with the oil warning light flashing on the instrument panel. The contact drove the vehicle despite the failure returning upon restarting the vehicle. The contact had the vehicle towed to an independent mechanic and was informed that the shift lever had disengaged from the transmission. The contact was then referred to the manufacturer after the mechanic discovered NHTSA Campaign Number: 15V606000 (Power Train); which the mechanic linked to the failure. The manufacturer was notified of the failure and informed the contact that the vehicle was not included in the recall. The contact was referred to the NHTSA Hotline to file a complaint. The vehicle was not repaired. The failure mileage was unknown.

NHTSA ID
11646279
Incident
Sep 1, 2023
Powertrain (other)
Filed Sep 21, 2023

The contact owns a 2008 Mercury Mariner. The contact stated that while idled at a stop, the maintenance warning light illuminated. The contact then stated that while the accelerator pedal was depressed the vehicle failed to accelerate. The contact then stated that he had to apply pressure to the accelerator pedal to increase the RPMs to approximately 3000 to allow the vehicle to proceed forward. Additionally, the contact stated that the brake pedal had to remain depressed to stop the vehicle from rolling on an incline when the vehicle failed to shift in 2nd gear. The contact stated that the vehicle was inspected by a family friend who determined the potential failure was related to NHTSA Campaign Number: 15V606000 (Power Train). The vehicle was not repaired. The dealer nor the manufacturer was notified of the failure. The failure mileage was approximately 309,000.

NHTSA ID
11545897
Incident
Sep 20, 2023
Mileage
309,000 mi
Fuel systemPowertrain (other)
Filed Nov 18, 2021

While driving on the highway my car just cut off in the middle lane. I was able to get into the emergency lane.

NHTSA ID
11440974
Incident
Nov 16, 2021
Powertrain (other)
Filed Apr 26, 2021

TL* THE CONTACT OWNS A 2008 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 35 MPH, THE VEHICLE LOSS MOTIVE POWER AND STALLED. ADDITIONALLY, THE VEHICLE FAILED TO OPERATE WHILE IN REVERSE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO WAS UNABLE TO DETERMINE THE CAUSE OF THE FAILURE. THE LOCAL DEALER RIVERSIDE FORD (2089 RIVERSIDE DR, MACON, GA 31204) AND THE MANUFACTURER WERE NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 260,000.

NHTSA ID
11413942
Incident
Apr 5, 2021
Mileage
260,000 mi
Powertrain (other)Suspension
Filed Apr 26, 2021

I WAS DRIVING THE VEHICLE AND I HEARD SOMETHING CLICK, VEHICLE STARTED SLOWING DOWN, GOT TO SIDE OF THE ROAD, PUT IN PARK, THEN TRIED TO GO DRIVE, NOTHING ,MOVED IT TO DR2,IT MOVED, WENT BACK TO PARK,TRIED GOING INTO REVERSE NOTHING, IT WILL MOVE IN DRIVE BUT NOT REVERSE.

NHTSA ID
11413924
Incident
Apr 23, 2021
Mileage
260,000 mi
Driver assistancePowertrain (other)
Filed Feb 6, 2021

2008 MERCURY MARINER THROTTLE CONTROL POWERTRAIN LIGHT COMES ON, TRANSMISSION CANNOT GO INTO GEAR PROPERLY, IT STOPS AT 4000 RPM, AND IT STRUGGLES TO GO AT HIGHER SPEEDS,

NHTSA ID
11395005
Incident
Feb 6, 2021
Powertrain (other)
Filed Sep 5, 2020

ON THE HIGHWAY AND STREET MY LEFT TIRE SHAKES BUT MY WHEEL DOESN'T THEN MY POWERTRAIN FAULT

NHTSA ID
11353355
Incident
Sep 5, 2020
Powertrain (other)Steering
Filed Apr 19, 2020

MY POWER STEERING WENT OUT WHILE I WAS DRIVING. I TOOK THIS VEHICLE TO MY MECHANIC AND HE SAID THAT IT WAS RELATED TO THE POWER STEERING RECALL THEY DID ON THIS TYPE OF CAR. BUT WHEN I PUT IN MY VIN IT SAID THIS CAR WAS NOT RECALLED. SO I AM WONDERING IF YOU GUYS SKIPPED OVER MY VEHICLE. I WOULD APPRECIATE IF YOU WOULD LOOK INTO THIS. THANK YOU.

NHTSA ID
11321578
Incident
Mar 15, 2020
Mileage
110,264 mi
EnginePowertrain (other)
Filed Feb 20, 2020

THE CAR IS REVING HIGH AND ACCELERATING POORLY. THEN THE RED TRIANGLE LIGHT TELLING ME TO STOP SAFETY NOW COMES ON CAUSING ME TO PULL OVER AND SHUT CAR OFF. I TURN THE CAR BACK ON AND IT DRIVES BUT WITH SAME ISSUES. LOOK ON THE CARCOMPLAINT.COM WEBSITE FOR TSB-09-19-12 AND TSB-08-24-5 WHICH DETAIL WHAT MY CAR IS DOING AND MAKES IT APPEAR LIKE THERE IS A COOLING PUMP RECALL. FORD JUST TOLD ME THERE ARE NO RECALLS LISTED FOR MY VIN THOUGH. THE FREQUENCY OF WHICH THE RED TRIANGLE LIGHT COMES ON IS INCREASING THIS MONTH. IT WAS EVERY FEW MONTHS AND NOW IT IS WEEKLY-DAILY.

NHTSA ID
11310281
Incident
Feb 18, 2020
Mileage
231,000 mi
ElectricalFuel systemPowertrain (other)
Filed Aug 19, 2019

FORD'S RECALL "CODE 14S19" ON 2005-2008 MARINER HYBRIDS AND ESCAPE HYBRIDS SHOULD COVER ALL OF THESE HYBRIDS BUT IT HAS EXCEPTIONS! FORD HAS ISSUED A RECALL ON *SOME* OF THE 2005-2008 FORD ESCAPE HYBRIDS AND *SOME* OF THE CORRESPONDING MERCURY MARINER HYBRIDS. HOWEVER THEY ARE REFUSING TO ISSUE A RECALL ON MY PARTICULAR 2008 MARINER HYBRID (WHICH IS EXHIBITING THE ELECTRONIC OVERHEATING PROBLEM DESCRIBED IN THE RECALL WHERE THE STOP SAFELY NOW COMES ON AND THERE IS AN IMMEDIATE LOSS OF POWER). THEY ARE REFUSING TO FIX MY MARINER JUST BECAUSE THE VIN NUMBER DOES NOT MATCH THE PARTICULAR MANUFACTURING LOT COVERED BY THE ORIGINAL FORD RECALL - THOUGH MY SUV DOES FALL IN THE DATE RANGE MENTIONED IN THE RECALL) I AM CERTAIN THIS RECALL SHOULD COVER MORE HYBRID SUV THAN FORD HAS ADMITTED TO, AND SINCE THE MARINERS HAD A VERY LIMITED PRODUCTION RUN, IT IS LESS LIKELY THAT THERE WIL BE A SIGNIFICANT NUMBER OF COMPLAINTS DUE TO THIS VERY SERIOUS LIFE THREATENING ISSUE - AND I WOULD LIKE TO EMPHASIZE THAT THERE HAVE BEEN NUMEROUS COMPLAINTS ABOUT THIS INCLUDING ON NHTSA. FORD SHOULD EXPAND THIS RECALL TO INCLUDE ALL DEFECTIVE FORD ESCAPES AND MARINER HYBRIDS BEFORE SERIOUS ACCIDENTS START OCCURRING AS A RESULT OF VEHICLES SHUTTING OFF DURING OPERATION BECAUSE OF EITHER DRIVE ELECTRONICS OVER HEATING DUE TO A BAD COOLANT PUMP, (AND POSSIBLY OTHER CAUSES?). ----RELEVANT RECALL-- NHTSA VEHICLE SAFETY RECALLS RECALL NUMBER 14V526000 RECALL DATE 09/03/2014 COMPONENT HYBRID PROPULSION SYSTEM FORD CONTACT NUMBER FOR RECALLS 1-866-436-7332. RELEVANT LINKS: HTTPS://WWW.NHTSA.GOV/VEHICLE/2007/MERCURY/MARINER%252520HYBRID

NHTSA ID
11245072
Incident
Aug 9, 2018
Mileage
120,000 mi
Powertrain (other)
Filed Jun 19, 2019

ON 6/8/2019 WHILE DRIVING ON HIGHWAY WITH CRUISE SET WITH MY DISABLED SON IN VEHICLE THE CAR PULLED BADLY TO ONE SIDE. I IMMEDIATELY BRAKED AND IT TOOK ALL MY STRENGTH TO GET US OFF THE ROAD. FRONT AXLE HAS ALREADY BEEN REPLACED 2 YEARS AGO. NOW DEALER IS SAYING TRANSMISSION BLEW AND IS OUT WHICH CAUSED FRONT AXLE TO FAIL WHILE DRIVING. REGULAR MAINTENANCE AND UPKEEP HAVE BEEN DONE. BUILT CAR AND ONLY DRIVER USUALLY CITY MILES. 2008 WITH LESS THAN 60,000 MILES. THIS IS A HUGE SAFETY ISSUE THAT NEEDS TO BE ADDRESSED IMMEDIATELY WE ALMOST FLIPPED.

NHTSA ID
11221150
Incident
Jun 8, 2019
Mileage
58,000 mi
Driver assistancePowertrain (other)
Filed May 24, 2019

TAKATA RECALL WELL DRIVING MY VEHICLE LOST ACCELERATION.WHEN I STEP ON THE GAS THE VEHICLE DIDN'T ACCELERATE AS THE RPM WENT UP.I WAS COMING TO A STOP LIGHT ON CITY STREET.AS I MADE THE STOP AT STOP-LIGHT AS THE LIGHT TURN GREEN I STEPPED ON THE HAS AND THE RPMS WENT UP BUT VEHICLE BARELY MOVED.

NHTSA ID
11209625
Incident
May 19, 2019
Mileage
165,000 mi
Powertrain (other)
Filed Nov 7, 2018

NOV 1 2018 MY MERCURY MARINER PREMIER WAS DRIVING DOWN THE ROAD WHEN THE TRANSMISSION SUDDENLY QUIT PULLING NO WARNING LIGHTS NO OTHER WARNING SIGNS IT NEVER SLIPPED GEARS JUST QUIT, I NOTICED AFTER LETTING IT SIT A DAY I TRIED IT AGAIN AND IT WENT NOT EVEN A MILE AND QUIT MOVING THERE WAS A RECALL ON MY MODEL AND YR VEHICLE IN 2015 REGARDING TRANSMISSION ISSUES BUT I WAS NEVER TOLD OF THIS

NHTSA ID
11149857
Incident
Nov 1, 2018
Powertrain (other)Steering
Filed Oct 7, 2018

MY 2008 MARINER HAD A RECALL FOR POWER STEERING DEFAULT SENSOR. I WAS TOLD BY FORD THAT THE ISSUE WAS RECALIBRATED IN THE ORIGINIAL RECALL BEFORE I PURCHASED THE CAR THE POWER STEERING FAILED AGAIN FORD WILL NOT FIX IT THEY DID NOT CHANGE THE PART TO SOLVE THE PROBLEM ORIGINIALLY THEY JUST RESET IT ON THE COMPUTER. IT IS EXTREMLY HARD TO TURN, BUT I NEED THE VEHICLE FOR WORK. GOT REPAIR QUOTES AS HIGH AS $1500 TO REPAIR, MONEY I DO NOT HAVE.

NHTSA ID
11138926
Incident
May 9, 2018
Driver assistancePowertrain (other)Steering
Filed Jun 25, 2018

MERCURY MARINER RECALL, I PURCHASED A 2008 MERCURY MARINER ON 9/27/14. ON 12/19/14 AT NIGHT WHILE ON HIGHWAY THE WRENCH WARNING LIGHT CAME ON AND THE CAR DECREASED SPEED AND I ALMOST GOT HIT BY THE CAR FROM THE REAR, PULLED IN EMERGENCY LINE AND HAD SUV TOWED. REQUIRED A TRANSMISSION ON 12/26/16 FOR $1475. ON 1/14/16 WHILE ON HIGHWAY DURING EXITING ON EXIT THE STEERING WHEEL BECAME DIFFICULT TO TURN , HIT THE GUARD RAIL THERE WHERE NOT WARNING LIGHT TO INDICATE THAT THE STEERING HAD A PROBLEM, HAD THE SUV TOWED TO SHOP AND REPAIRED STEERING SHIFT TORQUE SENOR FOR $428.00. ON 1/10/17 AFTER GROCERY SHOPPING THE SUV WOULD NOT START, CALLED CAB TO TAKE ME HOME WITH GROCERIES, RETURNED TO HAVE SUV TOWED TO SHOP REPAIR THE IGNITION STARTER SWITCH FOR $176.00. ON 9/21/17 WHEN LEAVING FOR WORK, THE KEY WOULD NOT TURNED, TOWED TO SHOP AND REQUIRED LOCK CYLINDER HOUSING $434.00. I WOULD LIKE FORD TO REIMBURSEMENT FOR ALL THE REPAIRS AND TOWING COST. VIN [XXX], NOT ON RECALL LIST YET AND THESE REPAIRS ARE RELATED TO RECALLS FOR MY 2008 MERCURY MARINER. I AM UPSIDE DOWN STILL OWE $7100. FOR BALANCE. WAS UNABLE TO MAKE SCHEDULED PAYMENTS WHEN REPAIR WHERE REQUIRED, EFFECTED MY CREDIT SCORE. AT THE PRESENT TIME THE TORQUE CONVERTER IN NOT WORKING ON THE TRANSMISSION AND MY CAR IS DISABLE. I WOULD LIKE FORD TO REPLACE THE TRANSMISSION AT NO COST TO ME. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ID
11103925
Incident
Dec 19, 2014
Mileage
65 mi
BrakesPowertrain (other)Steering
Filed Dec 5, 2017

POWER BRAKE BOOSTER BRAKE SYSTEM LOCK ON HIGHWAY. POWER STEERING WENT OUT WHILE DRIVING NO WARNING . ALMOST HAD ACCIDENT ON SNOW DUE TO BAD. TRANSMISSION. TRANSMISSION WENT OUT ON HIGHWAY. UNABLE TO START CAR IGNITION SWITCH.

NHTSA ID
11052435
Incident
Dec 5, 2017
Mileage
50 mi
Other / unspecifiedPowertrain (other)Suspension
Filed Dec 3, 2017

I NEVER RECEIVED REIMBURSEMENT FOR PUTTING IN A TRANSMISSION. I WAS ALSO NEVER NOTIFIED OF ANY RECALLS ON MY TRANSMISSION.

NHTSA ID
11052046
Incident
May 2, 2015
Mileage
88,000 mi
Powertrain (other)
Filed Oct 28, 2017

I HAVE 2008 MERCURY MARNIER 1ST GEAR STARTS OFF FINE 2ND GEAR WON'T SHIFT TILL IT GETS TO 3750 RPM THEN SHIFTS 3RD FINE NOT IN 4TH IT'S GIVING ME CODES P0732 AND P0734

NHTSA ID
11040778
Incident
Oct 18, 2017
Mileage
140,000 mi
Powertrain (other)
Filed Oct 28, 2017

IN TOWN, WHILE DRIVING 30 MPH, THE ENGINE SHUTS DOWN, LOSING POWER STEERING AND POWER BRAKE CONTROL.

NHTSA ID
11040692
Incident
Oct 26, 2017
Mileage
190,000 mi
ElectricalPowertrain (other)Steering
Filed Aug 10, 2017

POWER STEERING COMPLETELY FAILED WHILE OPERATING THE CAR, POSING A DANGER. TRANSMISSION LURCHES ON UPSHIFT BETWEEN 1 - 2 GEAR WHILE ACCELERATING. ELECTRICAL SYSTEM WILL NOT CHARGE BATTERY AND COMPLETELY FAILS WHILE THE VEHICLE IS IN OPERATION ON THE HIGHWAY, POSING A DANGER. VEHICLE MAY OR MAY NOT RESTART IMMEDIATELY.

NHTSA ID
11014488
Incident
Aug 9, 2017
Mileage
60,000 mi
Powertrain (other)
Filed Apr 19, 2017

WHILE DRIVING WENT TO PULL OUT FROM RED LIGHT AND CAR WOULD NOT MOVE FORWARD. FINALLY PUMPED GAS PEDAL AND MANAGED TO GET CAR TO GO FORWARD. CONTINUED TO DO THIS UNTIL WOULD NOT GO FORWARD OR IN REVERSE. WAS ABLE TO GET TO EMPTY PARKING LOT SO ROLL BACK COULD PICK ME UP. HAD TO HAVE TRANSMISSION REBUILT AND WAS TOLD THAT THE TRANSMISSION HAD BEEN REPLACED BEFORE. TRUCK ONLY HAS 95,724 MILES ON IT AND I BOUGHT IT USED. WOULD LIKE TO KNOW IF ANY RECALLS HAD BEEN ISSUED ON THIS VEHICLE.

NHTSA ID
10979300
Incident
Apr 3, 2017
Mileage
95,525 mi
ElectricalPowertrain (other)
Filed Mar 29, 2017

WHILE DRIVING THE CAR ON A HIGHWAY, THE WARNING LIGHT CHIMES AND DISPLAYS TO "SAFELY STOP VEHICLE". THE CAR NO LONGER ACCELERATES AND SLOWS TO A STOP EVEN IF YOU DON'T HAVE A SHOULDER TO PULL OFF TO. I NORMALLY JUST HIT MY HAZARD LIGHTS AND PULL TO A STOP, WAIT A FEW MINUTES THEN RESTART THE ENGINE. THIS HAPPEN ONCE A MONTH AND SOMETIMES TWICE OR THREE TIMES IN A ROW. IF THE HYBRID ELECTRONICS SYSTEM OVERHEATS, IT MAY SHUT DOWN THE POWERTRAIN, RESULTING IN A STALL-LIKE CONDITION, INCREASING THE RISK OF A CRASH. THERE IS CURRENTLY A RECALL ON THIS PROBLEM #14S19. CALLED FORD AND THEY SAID MY VEHICLE ISN'T A PART OF IT EVEN THOUGH IT CLEARLY WAS BUILT IN THE SAME TIME AND HAS THE EXACT ISSUE. VERY DANGEROUS AND SCARY PROBLEM.

NHTSA ID
10969279
Incident
Mar 28, 2017
Mileage
133,500 mi
Powertrain (other)
Filed Feb 15, 2017

WHEN I PULLED OUT INTO TRAFFIC ON MY WAY TO MEIJER THE VEHICLE BEGAN TO STALL LIKE IT WAS IN NEUTRAL. I WAS ABLE TO DRIVE IT TO A STOP LIGHT WHERE I PUT IT INTO PARK. WHEN I TOOK OFF FROM THE TRAFFIC LIGHT EVERYTHING WAS OK, WENT TO MEIJER AND TURNED THE VEHICLE OFF. WENT SHOPPING & WHEN I STARTED THE VEHICLE AGAIN EVEYTHING SEEMED NORMAL. WITHIN A MILE OF LEAVING MEIJER THE VEHICLE BEGAN THE SAME SYMPTOMS "ACTING LIKE IT WAS GOING TO STALL." WHEN I TRIED TO INCREASE THE SPEED TO GET THE VEHICLE HOME IT WOULD NOT GO OVER 15 MPH. IT WAS LIKE IT WAS CONFUSED ABOUT WHAT GEAR IT WAS IN. I PUT THE VEHICLE IN REVERSE TO PULL INTO A PARKING SPACE AND THE VEHICLE DID NOTHING. I TURNED IT OFF AND RESTARTED IT THEN PUT IT IN DRIVE AND PULLED INTO A PARKING SPACE.

NHTSA ID
10954637
Incident
Feb 14, 2017
Mileage
262,000 mi
ElectricalPowertrain (other)Steering+1 more
Filed Dec 21, 2016

STEERING WHEEL WILL FREEZE UP WHILE DRIVING. STEEL ON STEEL HORRIBLE NOISE WHEN DRIVING. SHIFTER GETS STUCK HAVE TO PUT IT IN NEUTRAL TO START IT. *TR

NHTSA ID
10936786
Incident
Dec 20, 2016
Mileage
235,508 mi
Powertrain (other)
Filed Aug 31, 2016

WHILE MY COLLEGE AGE DAUGHTER WAS DRIVING TO CAMPUS ON SUNDAY 8/28/16, CAME TO STOP AND WHEN SHE TRIED TO ACCELERATE, RPM BEGAN TO RACE ERRATICALLY AND CAR WOULD BARELY ACCELERATE. WRENCH LIGHT ON THE DASH BOARD IS NOW ILLUMINATED.

NHTSA ID
10899743
Incident
Aug 28, 2016
Mileage
173,000 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.

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 .