We don't have a lot of Chevrolet Trailblazer EXT fuel system problems on file — feel free to add yours here. The most common Trailblazer EXT fuel system problems cost $700 to fix & occur at 104,000 miles. Click on a year below.

Worst Fuel System Problems
faulty fuel gauge sensor 2006 Chevrolet Trailblazer EXT
crack in gas tank, service engine light on 2004 Chevrolet Trailblazer EXT
terrible gas smell in the cabin 2004 Chevrolet Trailblazer EXT