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:
1 / 0
Average Mileage:
11,125 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 Toyota Tacoma engine problems

engine problem

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2004 Toyota Tacoma Owner Comments

problem #4

Feb 242005

Tacoma 4WD 4-cyl

  • miles


2004 Toyota Tacoma pickup truck. Consumer states unintended excessive speed caused crash. The consumers minor daughter lost control of the truck, over corrected and ran off the road and crashed into a tree. The consumer believed the malfunction was caused by a defective accelerator pedal. The vehicle was totaled.

- Ringgold, VA, USA

problem #3

Dec 152005

Tacoma 6-cyl

  • Automatic transmission
  • 9,000 miles
The contact owns a 2004 Toyota Tacoma. While driving at various speeds, the vehicle would dramatically decelerate without warning. Also, when applying pressure to the accelerator pedal, the vehicle would not accelerate unless the pedal was completely depressed to the floor. The dealer stated that the maff air sensor was causing the failure. The dealer cleaned the sensor. The contact returned to the dealer a week later and they stated that the catalytic converter was melted and was the cause of the failure. After careful inspection, it was determined that the converter was not melted. A professional mechanic stated that the supercharger heat output effected the accelerator pedal positioning sensor and was causing the failure. The failure mileage was 9,000 and current mileage was 17,000.

- Saint Simons Island, GA, USA

problem #2

Dec 292005

Tacoma 4WD 6-cyl

  • Manual transmission
  • 27,000 miles
After shifting from second gear to third gear, the gas pedal stopped working completely. Seconds later it functioned normally, and as if nothing had happened. This has happened before, and I have identified the problem as a failure of the throttle body motor/sensor. I will be asking the Toyota dealership to fix the part.

- Saratoga, CA, USA

problem #1

Aug 162004

Tacoma 4-cyl

  • Manual transmission
  • 8,500 miles
While releasing the accelerator pedal a loud grinding noise was produce from the rear. Dealer stated that was normal because it was a new part.

- Cherryville, NC, USA

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