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Mercury Montego sudden acceleration problems

17 of the 259 owner complaints about the Mercury Montego describe sudden unintended acceleration, most of them for the 2005 model year.

owner complaints
17
worst model year
2005
typical mileage
79,000
Is there a fix? No recall or service bulletin covers this area of the car yet.

By model year

What owners say

Filed Aug 9, 2024 · Acceleration, Fuel system · 80,000 miles · NY

The contact owns a 2006 Mercury Montego. The contact stated that while parallel parking, the vehicle independently accelerated and lunged forward. There were no warning lights illuminated. The contact stated that the failure was due to the throttle body. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 80,000.

Filed Jan 9, 2019 · Transmission · 55,000 miles · FL

I got my 2007 mercury montego premier from my mom, who I bought it from. At that time, there was only 52,000 miles on it. At 52,000 miles, whenever the car would be put in drive or reverse, it would lunge forward. Over the years, the problem has gotten worse and worse where now when putting green the car in drive or reverse, the car lunges forward to the point that I have no control of how far it will lunge. It's so bad that I worry that I might hit someone with my car just backing up. Now, at 130,000, the transmission appears to have gotten even worse where it is slipping in 2nd gear. You give the car gas and it seems to just be at a stand still, then a) of a sudden, the whole car just throws itself, and any passengers in the car, forward and just shakes the entire vehicle. I'm surprised I haven't gotten whiplash from it, but it's so intense when it slips gears and then gets back into gear, that I would compare it to someone being hit from behind at about 20 MPH.. That's how rough it is. The federal safety agency is aware of this issue. They state that thee aren't enough complaints, but I know that not to be true. If they pent some time going online a huge number of owners of this vehicle have complained bouton this issue, but nothings been done. To me, it seems like the money they must get from companies lie ford is more like high money and he safety of the drivers and the people on the road comessage second to this very serious and very possible dangerous matter.

Filed Aug 31, 2018 · Acceleration, Airbags · 150,000 miles · OK · crash

Tl* the contact owned a 2005 mercury montego. While driving approximately 30 MPH, the vehicle experienced unintended acceleration and crashed into the rear of a second vehicle. Prior to the failure, the engine rpms erroneously increased and the vehicle surged forward. The front end of the vehicle sustained severe damage, but the air bags did not deploy. The vehicle was destroyed and towed. There were no injuries and a police report was filed. The manufacturer was notified of the failure. The local dealer was not notified. The failure mileage was 150,000.

Filed Apr 22, 2017 · Acceleration · 60,000 miles · NY

Sudden acceleration while in cruise control mode 65 or above. And will not stop unless brakes are applied to disengage the cruise control mode.

Filed Oct 9, 2013 · Acceleration, Fuel system · 113,486 miles · NC

As I was going down the highway, the car would suddenly feel as though I had put the gas pedal to the floor. It would suddenly accelerate even though I did not change the pressure on the gas pedal. I took the car to the local dealership and they had an owner notification from ford to clean the throttle body. The work was completed. However, the problem was never fixed. The vehicle would continue to do this on occasion. Now, the vehicle will completely shut off while I am driving down the highway. The fail safe light will come on and I have to coast to the side of the road. I have taken it back to the ford dealership and another $1,000 later I am having to replace the throttle body.

Filed Oct 1, 2012 · Acceleration · 85,000 miles · KY

Tl* the contact owns a 2007 mercury montego. The contact stated that while attempting to park the vehicle lunge forward. The vehicle was taken to the dealer, who stated that the throttle body might be defective. The manufacturer was not made aware of the failure. The vehicle was not repaired. The VIN was not available. The failure mileage was 85,000 and the current mileage was 90,000.

Filed Jul 13, 2012 · Acceleration · 80,000 miles · TN

Tl* the contact owns a 2006 mercury montego. While driving approximately 10 MPH, the contact depressed the brake pedal upon approaching a traffic stop signal. The vehicle suddenly lunged forward without warning. The failure recurred whenever the brake pedal was engaged during a complete stop. The failure became progressively worse. The vehicle had not been diagnosed or repaired. The manufacturer was not notified of the problem. The approximate failure mileage was 80,000. The VIN was unavailable.

Filed Jul 11, 2012 · Acceleration · 92,903 miles · MI

I experience a sudden acceleration when I am pulling into or backing out of a parking space and pulling into my driveway. I purchased this car used two years ago, so it might not be the first occurrence.

Filed Apr 2, 2012 · Acceleration · 50,000 miles · LA

Tl* the contact owns a 2005 mercury montego. The contact stated that after shifting into gear, the vehicle lunged forward abnormally. The vehicle was taken to the dealer who was unable to diagnose the failure. The manufacturer was not made aware of the failure. The vehicle was not repaired and the VIN was not available. The failure mileage was 50,000 and the current mileage was 86,087.

Filed Aug 6, 2011 · Fuel system · 66,000 miles · KS

When I come to a stop my car will lunge forward as I take my foot of the brake. The rpms notably rise from 700 to over 1000. This has recently started with 66,000 miles on the car.

Related recalls

No recalls on record for this model year.

Questions about the Mercury Montego sudden acceleration

Which Mercury Montego years have sudden unintended acceleration problems?

The model years with the most reports are 2005 (8 complaints), 2006 (5 complaints) and 2007 (4 complaints).

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