definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
34,080 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.

2005 Mercury Mariner engine problems

engine problem

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2005 Mercury Mariner Owner Comments

problem #5

Apr 202015

Mariner 4WD 6-cyl

  • 36,700 miles


The car stalled on me twice today. The first time it happened, I was traveling on gibson at 45 mph and made a left turn suddenly car stalled while in gear. I was able to coast to the shoulder, however I could not restart the car. I checked the manual and came across the fuel safety cut off switch located on the front passenger side panel. I pushed the reset button and was able start the car. Second time, I was approaching a traffic light the car stalled on me again. I pushed the reset button again, and started the car. At this point I am not sure what is happening to my car, and I don't want to be on the freeway at high speeds when it suddenly happens again. It appears to me that the fuel flow is being suddenly cut off to the engine.

- Henderson, NV, USA

problem #4

May 022009


  • 48,000 miles
The contact owns a 2005 Mercury Mariner. While driving 25 mph, the contact heard a loud clunking noise coming from the engine and the vehicle shut off. She was able to restart the vehicle and heard a clicking noise. She was able to safely drive the vehicle to her destination. The vehicle was towed to a local repair shop and inspected by a technician, who determined that the engine had no oil pressure. The failure caused several lifters and the bearing rod to fail. The vehicle has not been repaired. The contact called the manufacturer and was informed that no compensation would be provided because her vehicle was out of warranty. The failure and current mileages were 48,000.

- East Orange , NJ, USA

problem #3

Mar 052009


  • 37,700 miles
2-18-09: 2005 Mercury Mariner--locked engine: Message: Check emission system. Taken to shop. Took 10 days to repair, drove vehicle 3 days and same thing happened. 3-5-09: Vehicle again locked up and taken to shop by wrecker for repair. 2 weeks later car still not fixed. Told by Ford in detroit: Backlog/parts supplier out of business. Will not loan a me a vehicle, can do nothing to help me. Wait 3 months for part.

- Leesville, LA, USA

problem #2

Sep 192006

Mariner 4WD 6-cyl

  • Automatic transmission
  • 2,000 miles
I purchased a 2005 Mercury Mariner 7/24/2006at anaheim Lincoln Mercury and they were shut down. I have gone to many Ford & they will not help me cause the they don't have start date of warranty. I only have 17,0000 miles on this car and my air bag light goes on & off. Also my tires have serious problem I had to buy 2 myself the first 2000 miles the tire R wearing so bad now once again.

- Anaheim, CA, USA

problem #1

Sep 152006


  • Automatic transmission
  • 46,000 miles
: the contact stated while coming to a stop, the vehicle would shut off and a vibration was felt when turning the vehicle back on. Also, a clunky sound was heard, when starting back up. These incidents happened sporadically without any prior warning. The vehicle was taken to an independent mechanic, who was unable to duplicate the problem. The vehicle was going to be taken into the dealer for further examination.

- Milan, GA, USA

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