hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
54,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2007 Mercury Mariner engine problems

engine problem

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2007 Mercury Mariner Owner Comments

problem #5

Apr 012014

Mariner 6-cyl

  • 100,000 miles


Car lost power while driving-- it operated at a limp at first-- just prior to that went forward quick, then it just stalled while driving while in gear. The gas just made the engine rev. The car the next day after getting towed operated and the same thing happened while the service station took the car for a test drive. They had to tow it back. This same problem was fixed under warranty (20,000 on approx. 03/2008). It happened again. Ford refused to agree that there is something wrong with the design etc. If this had happened on the highway at highway speeds the results could have been tragic. I think it has something to do with the throttle problem... the car limps just as everyone as complained about. I have no idea what was actually fixed under warranty as the parts mean nothing. Pistons, gaskets, sensor turbi, hub plate asy, seals, and many other parts.

- Dudley, MA, USA

problem #4

Mar 072008

Mariner 6-cyl

  • 20,000 miles
The car just lost power while driving. Surged a bit then was operating at reduced power like it was limping eventually it just stalled and the gas would just rev the engine. Ford fixed the car under warranty. If this has happened at highway speeds in traffic it would have caused a severe accident as cars would have been dodging a stalled car at highway speeds-.

- Dudley, MA, USA

problem #3

Jun 292010


  • 57,000 miles
I was driving to work and car began to make a loud rattle noise, od light flashed (od off) and pulled over. I attempted to pull back on road and car would not shift into 2nd gear. Transmission problem. $1800 repair. Now 2013 exactly 3 years later and car begins same thing all over again. Diagnostic test states needs new transmission. Told these cars have had these problems from the get go. Ford knows this! the problem is coolant is located in radiator and does not keep trans from overheating. I am now told it will be $3650 for another trans. This is a total mess. It is not fair to the consumer who still owes $16,000 on this car. I bought this car with the hopes of repairing my damaged credit and made all routine service and flushes as scheduled on time. Now what to do" I cant afford another transmission, and am without a car and continue to have a car payment or my credit that I have finally got back on track is ruined once again! can anyone offer me advice on what to do" help!

- Belleville, MI, USA

problem #2

Apr 112007


  • 20,000 miles
The contact owns a 2007 Mercury Mariner. The contact stated that while driving 30 mph, the vehicle stalled and lost power to all electrical components. The contact was able to restart the vehicle and drive home. The contact took the vehicle to a dealer where the failure could not be replicated. The vehicle was not repaired. The contact did not call the manufacturer. The failure mileage was 20,000. The VIN was not available.

- Issaquah, WA, USA

problem #1

Apr 072012

Mariner 4-cyl

  • Automatic transmission
  • 73,000 miles
The contact owns a 2007 Mercury Mariner. The contact stated that while driving 65 mph, the vehicle made a loud noise and a cloud of smoke came from under the hood. The contact was able to coast off the highway. The vehicle was towed to the dealer and the contact was advised that the oil light only illuminated after the engine failure. The vehicle was repaired at a reduced rate. The contact could not confirm the exact repair that was made to the vehicle. The failure and the current mileages were 73,000 miles. Updated 07/19/12 updated 07/31/12

- Sewickley, PA, USA

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