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NHTSA — Power Train: Automatic Transmission Problems

2002 Mercury Mountaineer (Page 4 of 5) Seal Of Avoid Like The Plague


really awful
Crashes / Fires:
2 / 1
Injuries / Deaths:
2 / 0
Average Mileage:
62,574 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.

2002 Mercury Mountaineer transmission problems

transmission problem

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2002 Mercury Mountaineer Owner Comments (Page 4 of 5)

« Read the previous 20 complaints

problem #29

Mar 012005

Mountaineer 6-cyl

  • Automatic transmission
  • 46,851 miles


2002 Mountaineer stalls, transmission control assembly, main control valve, and gasket had to be replaced. The lift gate was sticking, and while closing it, the glass shattered, the glass was recalled, and was suppose to have been fixed. The oil light illuminated. The trim on the front door fell off while driving. There was a grinding noise coming from the rear wheels, it was determined that there was severe rust on the brake componets, the park brake shoes fell apart due to corrosion, the rear wheel bearing and knuckle assembly had excessive rust.

- Silverdale, WA, USA

problem #28

Jan 252006

Mountaineer 6-cyl

  • Automatic transmission
  • 75,000 miles
Transmission started shifting roughly. O/D off light started flashing. Then car wouldn't shift out of 2nd gear.

- Moore, SC, USA

problem #27

Dec 262005

Mountaineer 8-cyl Diesel

  • Automatic transmission
  • 42,000 miles
2002 Mercury Mountaineer - March 2005 - 46,000 miles solenoid was replaced cost $600 - December 2005 - 60,000 miles - transmission light on - in shop now to replace transmission or parts - cost of $2,300. I have four personal friends who have also had trouble with the Ford engine. We had received numerous forms for extended warranty. Seems that a 3 year old car bought new and still not paid for should have a good working transmission. This is a defect in Mercury which should be fixed and consumers should not be forced to pay for this repair or for an extended warranty. Why is Mercury so insistent on an extended warranty? Mercury must know that something is wrong with the transmission in the car.

- Dedham, MA, USA

problem #26

Dec 092005


  • Automatic transmission
  • miles


Copy of email sent to Mercury division of Ford Motor Company: On 12/9 I had to take my 2002 Mountaineer, with only 46,000 miles on it, to finnin Ford in dubuque. I was told I needed a "new" transmission!! I called Ford to explain the problem and this past Monday (12/12) I got a call back that Ford was only going to pick up $1200 of a $3000 repair bill. Last night I picked up my vehicle from the dealership, but only after paying $1800!! the reply from the Ford customer rep was that because I did not pay for the extended warranty, I was stuck for the major portion of this bill. This is not acceptable!! before I seek legal counsel, I would like to offer Ford/Mercury one last chance to do what should of been done in the first place for a very loyal customer (2 Explorer & 2 Mountaineer). Ford/Mercury should have replaced this transmission at no charge. A transmission failure at 46,000 miles on a 2002 SUV should not have happened and because it did, the manufacture should be fixing the problem at no charge to the customer. Oh, and did I mention that according to the dealership, this was the second such problem this week. If Ford Motor Co. Has a transmission problem, they should own up to it and fix the problem. I am also a long standing member of consumer report, and I will be advising them of this issue as well as the national safety counsel. Please respond to this email by 12/20/2005. Thank you, dave grall.

- Dubuque, IA, USA

problem #25

Sep 142005

Mountaineer 6-cyl

  • Automatic transmission
  • 55,000 miles
I had no warning that the automatic transmission in my 2002 Mercury Mountaineer at 55,000 miles was going out. The O/D light came on flashing and the check transmission light came on flashing. The speed of the vehicle would not accelerate past 20 mph. I immediately took it to the Mercury dealership and they repaired the leaking differential seals in the rear of the vehicle and the pinion seals in the front of the vehicle. They checked the transmission fluid and it was full. After $424 the problem was still there. Took vehicle to transmission specialty shop and the vehicle is in the shop at this hour having the transmission yanked out and repaired. This is my first Ford vehicle and my last. There seems to be a transmission issue regarding Ford/Mercury vehicles and there should have been something done about this long before now.

- Manassas, VA, USA

problem #24

Sep 142004

Mountaineer 6-cyl

  • Automatic transmission
  • 36,000 miles
The caller said vehicle stalled without warning several times. She stated that it did start back up. She took the vehicle to the dealer three times. Dealer said they fixed it each time. She sent manufacturer a letter on the problem and other problems. Also, the caller stated that she had the ignition switch replaced, and now when she takes it out of park something pops. Dealer will not do anything else to help her with the ignition switch. The day time running lights did not stay on, the consumer heard wind noise coming from the vehicle, the cigarette lighter did not work, there was a popping noise when the consumer placed the vehicle into gear.

- Crossett, AR, USA

problem #23

Nov 302004

Mountaineer 8-cyl

  • Automatic transmission
  • 100 miles


About two years ago owner purchased the vehicle 2002 Mercury Mountaineer. Right away owner complained of acceleration problem. While driving on the road vehicle felt like it was shifting when it accelerated. Vehicle usually did this about 25-30 mph or even higher speeds. The rpms would raise and increase speed. It felt like a transmission problem because it would accelerate, and raise the rpms without warning. There were no lights to indicate a problem. The first time the vehicle was taken to the dealer they didn't know what the problem was. The dealership was cooperative. The dealer replaced about half the transmission because they were thinking that it was a transmission problem. The problem has remained about the same and was still going on. When it accelerated by itself it sped up about 5-10 mph. The rpms went up by about 1000. Owner would like to make the office of defect investigation investigators aware that he would like to have someone come and check out the vehicle, and even take the vehicle away for further analysis if they would like to. He another vehicle to drive, and insisted about getting the problem with the accelerator repaired.

- Monroe, MI, USA

problem #22

May 122002

Mountaineer 6-cyl

  • Automatic transmission
  • 52,587 miles
I have a 2002 Mercury Mountaineer that the transmission needs to be relaced. There was nothing wrong with the transmission operationaly. The dashboard light O/D check transmission. The dealer which we purchased said the trans needed to be replaceed at $3200. I sent a letter to Ford Motor Company asking for assistance. They contacted me and sated the could not help.

- Yardville, NJ, USA

problem #21

May 162005

Mountaineer 6-cyl

  • Automatic transmission
  • 55,000 miles
Transmission shifting erratically on up-shift, 2-3 / 3-4 and 4-5. 5/16/05 mileage 55K. The vehicle was brought to the dealer, issue explained and fixed on first try. Solenoid, 1L2Z-7G391-ae replaced. This is in case anyone else has similar problems. Extended warranty was purchased and used.

- Kirkland, WA, USA

problem #20

May 072005

Mountaineer 4WD

  • Automatic transmission
  • miles
The vehicle's transmission slipped, jumped and made clunking noises while in park, reverse or while the consumer was driving. The vehicle was taken to the shop several times for numerous things such as the ignition switch. She took her vehicle to the shop this time and they said it was her transmission. Her vehicle only has 41000 miles. She started smelling a burning smell and that's when she took it into the shop. She has only had the vehicle 45 days and has already had all these problems.

- North Wood, OH, USA

problem #19

Mar 272005

Mountaineer 8-cyl

  • Automatic transmission
  • 20,000 miles


While reversing in low speed, the vehicle inadvertently accelerated into a pole. The dealership was notified, but did not resolve the problem. The consumer experienced sudden acceleration. The consumer believed that the pedal stuck. The transmission pan was removed and then re-sealed. The main control valve body was removed and repaired.

- Billerica, MA, USA

problem #18

Mar 142005

Mountaineer 6-cyl

  • Automatic transmission
  • 65,700 miles
The gears began making a whining and clicking noise as shifting occured at slower speeds. We were on a highway for approximately 1 1/2 hours when the O/D off light started flashing and the transmission downshifted from 5 th gear to 4th the remainder of the way. The words "check transmission" came on the odometer screen.

- Springfield, IL, USA

problem #17

Feb 172005


  • miles
A sudden thunk in the transmission and O/D light came on. By the next stop, it would not shift properly.

- Cincinnati, OH, USA

problem #16

Nov 102004

Mountaineer 4-cyl

  • Automatic transmission
  • 40,000 miles
2002 Mercury Mountaineer- automatic transmission needed a total rebuild at 40,000 miles.

- Bohemia, NY, USA

problem #15

Jan 212005

Mountaineer 8-cyl

  • Automatic transmission
  • 46,000 miles
I own a 2007 Mercury Mountaineer with 46,000 miles. Without warning the transmission started not shifting from gear to gear. The computer indicated "check transmission" and the overdrive off light began to flicker. I promptly stopped the vehicle and called for a roll back to have it taken to a transmissin shop.($80 tow fee) the shop diagnosed the problem as 3rd gear wrong ratio. The shop owner said that he thought it was a broken sprag. He replaced the transmission with a Ford factory remanufactured unit at the cost of $2813. I have since heard that there is a problem with the transmissions in the 2002 Ford model SUV's as well as in the Mercury's. is there anything being done to hold the manufacture liable for the expenses incurred?

- Joplin, MO, USA

problem #14

Jan 012005

Mountaineer 6-cyl

  • Automatic transmission
  • 65,000 miles
2002 Mercury Mountaineer drive train slips, causing sudden jumps and jerks from; starts, slow down / acceleration, reverse to drive. Bought car for wife for safe AWD system for snow and slick roads, wife does not feel safe as lurching from stops almost caused her to cause a rear end accident. Car has 65,000 miles had trans and front rear diff oil changed helped for about a week. Is it possible to replace 2002 trans with 2005 trans as they seem to be rated better?

- Madison, AL, USA

problem #13

Dec 032004


  • 59,899 miles
Transmission: Upon parking the vehicle consumer heard a noise. Vehicle vibrated, upon trying to use the vehicle again the gears would not go into reverse or drive.

- Leesburg, AL, USA

problem #12

Oct 192004

Mountaineer 6-cyl

  • Automatic transmission
  • 34,000 miles
The transmission slips. I was stoped at a red light, when the light turned green I put my foot on the gas but the vehicle did not move. I could hear the engine rev, but it was a few seconds before the vehicle moved. This has happened 4 times in 2 months. The prior owner traded the vehicle in due to this problem, she informed the dealership of the problem and requested that they fix it before selling the vehicle.

- Sylvania, GA, USA

problem #11

Aug 262004

Mountaineer 8-cyl

  • Automatic transmission
  • 20,000 miles
1.) would feel vibrations during shifts, car would not not shift 2.) truck rendered undrivable on first incident 8/02, second incident 8/03 caught early. 3.) tork converter replaced both times.

- Bear, DE, USA

problem #10

Nov 202001

Mountaineer 4WD 6-cyl

  • Automatic transmission
  • 883 miles
Problems with vehicle's transmission at various speeds. The engine remained slipping, jumping, and making noises, the rear window did not hold and fell on the consumers head, the steering column locks, the fuel engine read empty and the light was on, the interior coat hooks had come out of the walls, and the transmission was jumping, clunking, and slipping. Dup of 10022342_pco

- Dover, DE, USA

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