MY 2006 MERCURY MOUNTAINEER HAS INTERMITTENTLY JOLTED OR LURCHED FORWARD WHEN STOPPING FOR LIGHTS AND STOP SIGNS AFTER SPEEDS OVER 30 MPH. HASN'T GOTTEN AWAY FROM ME BUT FEELS AS IF I AM GOING TO HIT SOMETHING OR SOMEONE AHEAD OF ME. EXTREMELY SCARY WHEN PEOPLE ARE IN CROSS WALK. I TOOK MY CAR TO THE FORD DEALER SHORTLY AFTER BUYING IT USED. THE DEALER CHECKED IT OUT AND DENIED IT WAS HAPPENIN…
2006 Mercury Mountaineer powertrain problems
severe 35 complaints filed with NHTSA · avg repair $2,500
Complaints
35
Recalls
0
Crashes
2
Avg fix
$2,500
What owners are reporting 6 most recent
I HAVE JUST PURCHASED A USED 2006 MERCURY MOUNTAINEER AWD V8. WHEN THE VEHICLE IS COMING TO A STOP, THE TRANSMISSION LUNGES FORWARD AS IT IS DOWNSHIFTING. IT FEELS JUST LIKE ANOTHER VEHICLE HAS HIT MY VEHICLE FROM BEHIND. THIS IS A DANGEROUS SITUATION SINCE AS THE VEHICLE LUNGES FORWARD, IT COULD HIT A PEDESTRIAN IN A CROSS WALK OR HIT ANOTHER VEHICLE IN FRONT OF ME. *TR
WHEN I STOP MY TRANNY KICKS AND IT FEELS LIKE I GOT HIT IN THE REAR. I TOOK IT TOO FM DEALER AND THEY ADJUSTED THE COMP, BUT DIDN'T FIX THE PROB. IT GOT WORSE. *TR
MY TRUCK HAS 115,000 MILES ON IT, TRANSMISSION IS NOW GONE. WHEN I PUT IT IN REVERSE IT WOULD JERK BACK LIKE THE IT WAS BEING HIT, ALL OF SUDDEN IT STARTED DRAGGING WHILE DRIVING, AND HAVING PROBLEMS SHIFTING INTO GEAR, AND NOW ITS TOTALLY GONE...ONLY HAD THE VEHICLE TWO YEARS. *TR
V8 MOUNTAINEER JOLTS WHEN YOU COME TO STOP, FEELS LIKE IT HAS BEEN REAR ENDED, NO ACCIDENTS AT THIS POINT, BUT THERE HAS BEEN A FEW CLOSE CALLS. *TR
2006 MERCURY MOUNTAINEER TRANSMISSION PROBLEMS. HESITATION, FUNNY SHIFTING. COULD GET SOMEONE IN TROUBLE BY THE RANDOM SHIFTING PROBLEM. FORD DEALER I WENT TO SAID THEY HAD NEVER HEARD OF THE PROBLEM. WHEN YOU GOOGLE THIS IT IS A PROBLEM THANKS *TR
Common questions
How serious is the powertrain problem on the 2006 Mercury Mountaineer?
It's a meaningful issue. 35 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
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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