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.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
2,500 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 Grand Marquis engine problems

engine problem

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2004 Mercury Grand Marquis Owner Comments

problem #4

Dec 182005

Grand Marquis 8-cyl

  • Automatic transmission
  • 10,000 miles


While the contact's friend was pulling into a parking lot she pressed on the brake pedal and it hesitated while stopping the vehicle. On a separate occasion, while stopping at a stop light the accelerator pedal got stuck. This caused the contact's vehicle to rear end the vehicle in front. When the brake pedal was pressed the vehicle was non responsive. The contact had to turn the vehicle off to get it to stop. No injuries reported. The vehicle has not been to a dealership to be inspected concerning this problem.

- Lexington , KY, USA

problem #3

Oct 092004

Grand Marquis 4-cyl

  • Automatic transmission
  • miles
While applying the brake pedal vehicle accelerated uncontrollably. Driver was able to maintain control of the vehicle, and pulled over. Vehicle was taken to the dealer for inspection numerous times, but mechanic could not duplicate the problem.

- Cleveland, OH, USA

problem #2

Jun 012004

Grand Marquis 8-cyl

  • miles
The adjustable pedal can go back or forth when hitting the brake pedal the gas pedal is so close they hit together.

- Naples, FL, USA

problem #1

Jan 312004

Grand Marquis

  • miles
With the consumer's foot on the brake, the vehicle sudden accelerated and started shaking. (nar)

- Reisterstown, MD, USA

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