Problems · by component

2005 Mercury Montego power train problems

49 owner complaints to NHTSA about the 2005 Mercury Montego cite power train, 36% of all 135 complaints for this model year.

Complaints
49
36% of all complaints
Crashes
3
Reported by owners
Fires
0
Reported by owners
Injuries
2
Reported by owners
01 —Owner reports

What owners say about the power train

Verbatim from NHTSA complaints, newest first
“I OWN A 2005 MERCURY MONTEGO. WHILE DRIVING VARIOUS SPEEDS, ALL OF THE INSTRUMENT PANEL GAUGES WOULD ILLUMINATE AND DROP TO ZERO AND THE SEAT BELT INDICATORS WOULD ILLUMINATE AND CHIME. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 135,000”
Owner complaint to NHTSAFiled Dec 3, 2020Power train, Electrical system, Exterior lightingODI 11377774
“THE LINKAGE THAT CONTROLS THE GEAR SHIFT ALLOWED THE CAR TO ROLL WHILE THE CAR WAS SUPPOSED TO HAVE BEEN IN PARK. MOREOVER. THE CAR WAS IN PARK BUT WOULDN'T START. WHEN THE TOW TRUCK PUT THE CAR ON THE FLAT BED, THE CAR TRIED TO ROLL OFF EVEN THOUGH THE CAR SHIFT LEVEL WAS IN PARK. THE CAR WAS IN PARK AND THE ENGINE WAS OFF. AND THE KEY WASN'T IN THE IGNITION.. THE CAR WAS REPAID TO THE TUNE OF ABOUT $800.00. IT HAD TO DO WITH SOME LINKAGE THAT RUNS UNDERNEATH THE BATTERY BOX. ALSO THE CAR WOULDN'T START.”
Owner complaint to NHTSAFiled Jan 6, 2020Power trainODI 11297286
“WITH ONLY 70,000 ON THE TRANSMISSION IT BEGAN TO HESITATE WHEN I WOULD ACCELERATE AND BUCK WHEN I WOULD COME TO A STOP. THIS BECAME HAZARDOUS WHEN I WAS TRYING TO COME OUT OF A PARKING LOT ONTO A BUSY STREET AND THE FORWARD PROPULSION WOULD HESITATE CLOSING THE SAFE GAP BETWEEN ONCOMING CARS AND MYSELF. THIS HAS BEEN A KNOWN PROBLEM WITH THE 2005 MERCURY VEHICLES BOTH IN THE CVT TRANSMISSION AND THE 6-SPEED. I DON'T KNOW WHY THEY HAVE NOT HAD A RECALL ON THE TRANSMISSIONS SINCE THERE ARE HUNDREDS OF COMPLAINTS ON THE INTERNET WITH THIS SAME EXACT PROBLEM. MY FIRST MONTEGO PASSED THE LEMON LAW WITH THE TRANSMISSION PROBLEMS WHEN I FIRST BOUGHT IT. NOW THE SECOND MONTEGO IS HAVING THE SAME ISSUES AFTER ONLY 70,000 MILES ON THE VEHICLE. I HAD TOO MANY CLOSE CALLS DRIVING THIS VEHICLE WITH THE INCONSISTENCY IN ACCELERATION. AND THE BUCKING AND THUMPING WHEN BRAKING IS SEVERE. SOMETHING NEEDS TO BE DONE SINCE THERE ARE SO MANY OF US HAVING THE SAME PROBLEM. WHAT WILL IT TAKE TO GET FORD, MERCURY TO RECTIFY THIS KNOWN ISSUE?”
Owner complaint to NHTSAFiled Oct 15, 2016Power trainODI 10916257
“MY 2005 MERCURY MONTEGO SHUTS OFF WHILE GOING DOWN THE ROAD. I HAVE PAID AROUND $4000 TO TRY AND HAVE THE PROBLEM FIXED AND IT HAS NEVER STOPPED. THE REVERSE GEAR IS UNUSABLE, AS SOON AS YOU PUT IT IN REVERSE IT SHUTS THE CAR OFF. THE TRANSMISSION JERKS AND WILL NOT STEADILY ACCELERATE AT RANDOM TIMES. THE CAR WILL RANDOMLY SHUT OFF WHEN GOING DOWN THE ROAD LOSING ALL POWER STEERING AND POWER BRAKING ABILITY. THIS IS PARTICULARLY A PROBLEM CONSIDERING I HAVE AN INFANT IN THE BACKSEAT MOST EVERY TRIP. I SAW THIS LAWSUIT AND EVERY SINGLE THING LISTED ABOUT THE CVT TRANSMISSIONS HAS HAPPENED AND IS STILL HAPPENING TO MY 2005 MONTEGO.”
Owner complaint to NHTSAFiled Apr 16, 2016Steering, Power train, Fuel/propulsion systemODI 10859900
“I JUST PULLED MY CAR OFF THE LOT NOT EVEN 10 MINUTES LATER THERE WAS JERKING THEN MY CAR STOPPED DEAD IN THE MIDDLE OF A BUSY STREET.THIS HAS HAPPENED NUMEROUS TIMES WITH THE WORST BEING ON A ONE WAY AND MY NIECES NO MORE THAN 10 YEARS OLD IN THE CAR MY CAR MADE A KIND OF A LOUD HUMMING NOISE,JERKED THEN STOPPED IN THE STREET.AT TIMES I CAN'T EVEN REVERSE OR GO UP STEEP HILLS. *TR”
Owner complaint to NHTSAFiled Apr 27, 2015Power train, EngineODI 10713200
“WHEN IT GET HOT IT JERKS,WHEN YOU ACCELERATE IT WONT TAKE OFF AND THEN IT LEAP FORWARD, WHEN IN LOW GEAR IT REALLY START JERKING AND THEN IT STOP IT TAKE A MOMENT BEFORE IT MOVE. I SEEN SEVERAL COMPLAINTS ON THE INTERNET WITH THE SAME PROBLEM. I TOOK IT TO HAVE IT LOOK AT. THEY SAY THAT NUMEROUS OF THERE CUSTOMER HAVE THE SAME PROBLEM WITH THIS MODEL. ONE CUSTOMER PUT 2 TRANSMISSION IN HER MONTEGO AND EXPERIENCE THE SAME PROBLEM OVER AGAIN. *TR”
Owner complaint to NHTSAFiled May 15, 2014Power trainODI 10588674

Showing 6 of 49 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Other 2005 Montego problem areas