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. Notes: It would be ill-advised to blaze any trails with the 2004 Trailblazer. Its faulty fuel gauge could leave you stranded.


really awful
Typical Repair Cost:
No data
Average Mileage:
44,000 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. not sure (2 reports)
2004 Chevrolet Trailblazer engine problems

engine problem

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2004 Chevrolet Trailblazer Owner Comments

problem #2

Feb 242011

Trailblazer LT 4.2L V6

  • Automatic transmission
  • 49,000 miles


I think that the GM should fix this problem for free i have heard it happen to many other vehicles in my area. It is a nice vehicle but maybe they should look into there engines and stand behind them...

- , Bonesteel, SD, USA

problem #1

Jan 092006

(reported on)

Trailblazer LS

  • 39,000 miles

Valve in the number 2 cylinder is shot. My vehicle has been at the dealership since 5 Dec 05, and now it's 9 Jan 06. I'm still waiting on it to get fixed, they've been saying the delay has been waiting on parts, I could've had a new engine put in by now. After the repair it'll most likely happen again, so I'll be trading off real soon before the warranty expires. In fact, this is real close to be considered a "lemon" under lemon laws since they've had it for over 30 consecutive days. Hmmmm!!

- , Sedalia, MO, USA

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