WHILE TRAVELING AT 65, WRENCH POWERTRAIN LIGHT CAME ON. ABLE TO GET TO SIDE OF ROAD. CALLED FORD ROADSIDE, WRECKER TOWED TO DEALERSHIP. FOUND FAULTY THROTTLE BODY. REPLACED UNDER EXTENDED WARRANTY. SCARY SITUATION. *TR
2010 Mercury Mariner powertrain problems
moderate 60 complaints filed with NHTSA · avg repair $2,500
Complaints
60
Recalls
0
Crashes
0
Avg fix
$2,500
What owners are reporting 3 most recent
WAS DRIVING ON THE FREEWAY GOING ABOUT 70 WHEN I LOST ALL POWER TO ACCELERATE. I NOTED THE WRENCH SYMBOL ALSO HAD JUST CAME ON. I WAS ABLE TO PULL OVER TO THE SHOULDER AND TURN MY CAR OFF. BEFORE IT TURNED OFF THE CAR SHOOK QUITE A BIT. I LET THE CAR SIT FOR ABOUT A MINUTE RE-STARTED AND NOTED THE WRENCH WAS GONE AND I COULD ACCELERATE. LATER THAT DAY IT HAPPENED TO ME AGAIN. CAR IS IN SHOP AND TH…
LOSS OF POWER ON HIGHWAY..SO THANKFUL I DIDNT GET HIT BY OTHER VEHICLES..WAS SO SCARED..THE WRENCH CAME UP ON DASH...FORD SAID EITHER DRIVE TRAIN OR THROTTLE. ..LET ME SAY, I HAVE 48000 MILES ..IF HAVE TO PAY FOR THIS, MAY CALL LAWYER..HAVE SO MANY COMPLAINTS AND FORD HAD NOT ANYTHING ABOUT IT...ARE THEY WAITING FOR A DEATH??? MY SUV WAS TAKEN TO TED RUSSELL FORD PARKSIDE DRIVE KNOXVILLE TENNESSEE…
Common questions
How serious is the powertrain problem on the 2010 Mercury Mariner?
It's a documented issue but not catastrophic. 60 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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