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.


pretty bad
Typical Repair Cost:
Average Mileage:
99,333 miles
Total Complaints:
3 complaints

Most Common Solutions:

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

engine problem

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2004 Chevrolet Trailblazer Owner Comments

problem #3

Aug 212013

Trailblazer EXT

  • Automatic transmission
  • 120,000 miles


This condition started like a hole in the exhaust or a gasket leak then made my wife sick from exhaust coming in the air conditioning.

- , Erie, PA, USA

problem #2

Feb 052010

Trailblazer 4.2L

  • Automatic transmission
  • 70,000 miles

replacing took 5 hours. I added a how to page under photo attachment

- , Janesville, WI, USA

problem #1

Nov 202009

Trailblazer EXT LS 3.4L V6

  • Automatic transmission
  • 108,000 miles

the manafold is badly cracked went to the salvage yard to get replacement part and all there they had were cracked also trying to order an after market they are back ordered for at least the next month signs that they are very popular

- , Ottumwa, IA, USA

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