Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
7,500 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.

2004 Mercury Mountaineer drivetrain problems

drivetrain problem

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2004 Mercury Mountaineer Owner Comments

problem #2

Apr 202004

Mountaineer 8-cyl

  • Automatic transmission
  • 10,000 miles


I purchased my 2004 Mercury Mountaineer in Oct 2003. The vehicle was making a roaring noise, once taken in Ford replaced the rear differential and rear drive shaft, also complained of rough shifting of transmission around 30-35 mph changing from 2nd to 3rd gear. The solenoid was replaced, additive added, many reprograms but after 6 trips to dealer still is not corrected. 18 months later roaring noise appeared again and same rear drive shaft was replaced. The vehicle has less than 30,000 miles.

- Shelbyville, TN, USA

problem #1

Jul 302004


  • Automatic transmission
  • 5,000 miles
While driving there was a very loud noise from the front of the vehicle. Consumer pulled off the road, and called road side assistant. Vehicle was towed to the dealer, who performed an oil change because of mileage at the time of the incident. Noise recurred the following day. Vehicle was taken back to the dealership, who indicated that the driveshaft was defective, and needed to be replaced. Vehicle is currently at the dealership being inspected.

- West Chester, PA, USA

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