NHTSA — Power Train: Automatic Transmission Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
62,340 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 transmission problems

transmission problem

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2005 Mercury Mariner Owner Comments

problem #7

Jun 242009

Mariner 4-cyl

  • 40,989 miles


I purchased a 2005 Mercury Mariner in March of 2007, this vehicle had 11,000 miles on it. In June of 2009, I begin hearing rattling noise in the engine and the gears begin operating very poorly. Had an auto shop check out what the problem could be in June of 2009, and was told my transmission needed repair. I stopped driving the vehicle and begin using a rental car until I could put the money together for the repair, which I was quoted over $2100. I contacted Ford to inquire about why I'm having this problem at 40,989 miles, Ford claimed they had no reported cases of my mechanical problem and that I needed to get it to the dealer to be checked out. I was informed I would be responsible for all charges, repairs, towing and rental car expenses, since the 36,000 miles warranty and 3 years had expired. I made arrangements for my car to be repaired by the first auto shop, and the transmission was rebuilt, total coast, not including rental car came to $2237.50. July 16, 2011 I was traveling approx. 30 miles and my od off light begin flashing, made a stop at a convenient store, restarted the car and the od off light had stopped flashing. While continuing to travel approx. Another 30 miles, od off light begin flashing again, approx. 20 minutes later the check engine light came on. There were no signs of over heating, no strange smells of any sort, the vehicle continued to run as normal. Once I made my final designation, the vehicle appeared to be fine and normal, still no signs of over heating or no strange smells. While traveling back approx. 45 miles, the od off light begin flashing, no signs of over heating, no strange smells. Approx. Another 30 miles, the check engine light came on. Check engine light remained on, I located a coupon for a free scan with aamco, which found that my transmission need to be repaired, the transmission fluid was drained and was burnt. Total cost for this repair, not including rental car is $2290, mileage is at 59,900.

- Houston, TX, USA

problem #6

Nov 062010


  • 85,000 miles
2005 Mercury Mariner. Vehicle running just fine, except starting sluggish. Needed new battery. I changed it. Right away it began to shift rough on 3 shift (automatic). Read manual and it stated to give time for computer to reset to drive conditions. After 3 weeks I set up appointment with dealership. They charged $119, and stated that they updated the computer, but it still did same thing. They informed me they called Ford, and was told to replace the transmission for $3500. The technician did not seem convinced of that, and said fluid was fine and did not smell burnt. Said to drive longer. I have written to Ford to no avail. They also stated the reason it did not do it with the old battery was due to the computer covering the rough shift. I talked to a transmission expert. He just could not see that being possible.

- Zanesville, OH, USA

problem #5

Oct 172010


  • 95,455 miles
I was driving down the interstate for about 50 miles and exited at an off ramp. At the end of the ramp, my 2005 Mercury Mariner stalled causing loss of control.. my Mariner would crank, but would stall once engaged into forward gear. I was able to keep the vehicle from stalling by idling at high rate in neutral only. My vehicle stalls once placed into gear and coming to a stop at periodic times. I learned that Ford Motor Company produced technical service bulletins on this issue, but did not notify me or other owners of the defect with Mariners from '05-'08 equipped w/ a cd4E automatic trans axle built from 8/01/04-2/15/07. I contacted Ford and discovered that Ford does not notify owners of defects through service bulletins. Ford refuses to rectify issue.

- Lincoln, AL, USA

problem #4

Dec 202009


  • 73,279 miles


The car stopped running as I exited the interstate off ramp. This was in high traffic with cars behind me. I was able to get the car restarted and coasted to the side of the road. A tow truck took me to a Ford dealer, where it was stated the torque converter had failed. The Ford dealer told me that a new "code" number had been issued because there were so many problems for Ford escape and Mercury Mariner from 2003-2008. My vehicle is a 2005 Mercury Mariner. I had no previous indications that this would fail and was traveling out of state. The cost was $1800 and the dealer stated that Ford and Mercury were not doing anything to resolve this other than issue an internal notice to all dealers. I feel a recall should be issued and my costs refunded, they are obviously aware of this issue.

- Lees Summit, MS, USA

problem #3

May 152009


  • 87,304 miles
I was driving down the interstate for 45 miles and exited at an off ramp. At the end of the ramp, my car stalled almost causing a crash. My car would crank, but would continue to stall once engaged into gear. I can keep the vehicle from stalling by mashing the accelerator, revving the RPM's. ever since then my vehicle has continued to stall once placed into gear and coming to a stop at periodic times. I find my vehicle unsafe to drive, due to it happening out of nowhere and at intersections. I had a friend of mine in the automobile industry look at my vehicle and into the situation, and he has found that Ford has had numerous issues as far back as '07 with escapes and Mariners from '05-'08 equipped w/ a cd4E automatic trans axle and built from 8/01/04-2/15/07. Ford has enacted service procedures for correcting the problem dated 3/01/2007.

- Epps, LA, USA

problem #2

Apr 172008

Mariner 4WD 4-cyl

  • Automatic transmission
  • 38,351 miles
The contact owns a 2005 Mercury Mariner. While driving 40 mph, the contact felt as if someone rear ended her vehicle. She looked in the rearview mirror, but did not see anything. When she arrived at the dealer, the entire engine fell from the motor compartment and onto the ground. The mechanic stated that the entire front end of the vehicle had fallen apart. The vehicle is currently at the dealer. The failure mileage wase 38,351. Updated 05/21/08 the consumer also stated the transmission failed. Updated 05/19/08

- Lawton, OK, USA

problem #1

Oct 082006

Mariner 4WD 6-cyl

  • Automatic transmission
  • 16,002 miles
- the contact stated that on 10/08/06 while D at a speed of 40 mph driver's front tire wheel studs broke off. The vehicle had an odometer reading of 16,002 miles on the vehicle at the time of the incident. The contact stated that on the day of this incident the weather was clear and so were the road conditions. The contact had the vehicle towed to dana motors in staten island, NY, and the dealership replaced 4 lug: Nuts and 4 wheel studs. The contact stated that on 12/10/06 the vehicle would not accelerate. The vehicle was towed to dana motors, and at that time the vehicle had 17,642 miles on it. The contact stated that the repair order stated that dealership replaced parts and gears. The dealership informed the contact that the transmission box was opened and found that the tray had pieces of metal in the transmission tray. Ak the inside cargo light was not working, the windshield was leaking, the steering wheel would vibrate when the consumer reached a speed of 70 mph. Updated 03/07/07

- Staten Island, NY, USA

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